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Mon, 31 Jul 2023 03:29:33 -0500 Received: from fllv0040.itg.ti.com (10.64.41.20) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 31 Jul 2023 03:29:33 -0500 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0040.itg.ti.com (8.15.2/8.15.2) with ESMTP id 36V8TWhr031919; Mon, 31 Jul 2023 03:29:33 -0500 From: Jai Luthra To: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , Laurent Pinchart , Tomi Valkeinen CC: , , , , Mauro Carvalho Chehab , Maxime Ripard , , Benoit Parrot , Vaishnav Achath , Vignesh Raghavendra , , , Subject: [PATCH v8 01/16] media: subdev: Export get_format helper for link validation Date: Mon, 31 Jul 2023 13:59:19 +0530 Message-ID: <20230731-upstream_csi-v8-1-fb7d3661c2c9@ti.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com> References: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com> MIME-Version: 1.0 X-Developer-Signature: v=1; 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a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772933000654602138 X-GMAIL-MSGID: 1772933000654602138 For link validation on video device drivers, it may be required to match the formats set on the source subdev with the formats set on the video device. Export the existing v4l2_subdev_link_validate_get_format() helper so it can be reused by such drivers. Suggested-by: Laurent Pinchart Signed-off-by: Jai Luthra --- New in v8 drivers/media/v4l2-core/v4l2-subdev.c | 8 ++++---- include/media/v4l2-subdev.h | 12 ++++++++++++ 2 files changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/media/v4l2-core/v4l2-subdev.c b/drivers/media/v4l2-core/v4l2-subdev.c index 217b8019fb9b..0d3b5ff5cacc 100644 --- a/drivers/media/v4l2-core/v4l2-subdev.c +++ b/drivers/media/v4l2-core/v4l2-subdev.c @@ -1130,10 +1130,9 @@ int v4l2_subdev_link_validate_default(struct v4l2_subdev *sd, } EXPORT_SYMBOL_GPL(v4l2_subdev_link_validate_default); -static int -v4l2_subdev_link_validate_get_format(struct media_pad *pad, u32 stream, - struct v4l2_subdev_format *fmt, - bool states_locked) +int v4l2_subdev_link_validate_get_format(struct media_pad *pad, u32 stream, + struct v4l2_subdev_format *fmt, + bool states_locked) { struct v4l2_subdev_state *state; struct v4l2_subdev *sd; @@ -1165,6 +1164,7 @@ v4l2_subdev_link_validate_get_format(struct media_pad *pad, u32 stream, return ret; } +EXPORT_SYMBOL_GPL(v4l2_subdev_link_validate_get_format); #if defined(CONFIG_VIDEO_V4L2_SUBDEV_API) diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h index a012741cc876..ef7007f46889 100644 --- a/include/media/v4l2-subdev.h +++ b/include/media/v4l2-subdev.h @@ -1301,6 +1301,18 @@ int v4l2_subdev_link_validate_default(struct v4l2_subdev *sd, struct v4l2_subdev_format *source_fmt, struct v4l2_subdev_format *sink_fmt); +/** + * v4l2_subdev_link_validate_get_format - get format for media link validation + * + * @pad: pad id + * @stream: stream id + * @fmt: pointer to &struct v4l2_subdev_format + * @states_locked: is the subdev state already locked + */ +int v4l2_subdev_link_validate_get_format(struct media_pad *pad, u32 stream, + struct v4l2_subdev_format *fmt, + bool states_locked); + /** * v4l2_subdev_link_validate - validates a media link * From patchwork Mon Jul 31 08:29:20 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128523 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1902485vqg; Mon, 31 Jul 2023 02:48:39 -0700 (PDT) X-Google-Smtp-Source: APBJJlGef88+bcddGmodb7GsJbFau1P+ZEPW18sJ/FojpvgD6YG2H/+CMHc5ujL/xM6q876PrRBM X-Received: by 2002:a05:6a21:99a9:b0:137:2d73:707f with SMTP id ve41-20020a056a2199a900b001372d73707fmr9376597pzb.5.1690796919348; Mon, 31 Jul 2023 02:48:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690796919; cv=none; d=google.com; s=arc-20160816; b=lcMZXYUXCmYLLp6t9DbKVhMY1kjnShSnVILrT/I2DEKIpMa0G7a7Sd3KDVYZv9onhD 32qdCBXL+WchADLFCpmGhAo6T8tvcwNw/a5HafLWdvbvRq1elXMXLzIN/4V/OEkm8S7Z VQGQXlVqNQTaKJY9NkYMIjC68LJizPto3VUsHDawo0NLnPw6H0wQG5IO0jrTkDRDk5uR o/HuQJ4sggTp7RsGaFzM0fWLazpAX+nYzr7rDXiSLJYhoFIBl6muVFtkkKwyoK9OPUoy Gi68Q9mWw9netSUck/8vWtXdXbDAwaAv9pzp3SJXtp8faFgs08fF2CyOBdxH+7ExZ1Zy HgNg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=Cnn6hunqmq7f5Jr25+l7OAAvN0DPDyacQ6yS43vdOIA=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=BglUiKKYK0xSK0m42nTgS8z3bksD+TFrLDzTg7Q8O/i4vcpnLGPkh6OUFBkVRuubV9 L0YvB1TF3HveX0uTF23y6ntzrpnuFleHRXg05rZUuR81yGfHTLunognOaMfvXvdsNGXZ b/nEXWzqJwxtFJD3bheoEfF2pB9ZWhIzzwUCAwl9IgH4HK2wMI6IZiPxYIMnJ47cya4T 0xz2xjTnveUiwMDi6S49kfprWPHweZNcpE9oYa55wAmlG3AbL+A9Sa2aFXCdQM/t1QZk zujYe5TzyDfB5KHfLSlettmQjVmaG3DhpjpHIjiQt0b000+pMwRWuyN4LPGsFZpARuc1 J8ig== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=ZUy90lNt; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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The position of an entry is the logical lane number and its value is the physical lane number. Since one physical lane can only map to one logical lane, no number in the list should repeat. Add the uniqueItems constraint on the property to enforce this. Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Acked-by: Rob Herring Reviewed-by: Tomi Valkeinen --- v7->v8: No change Documentation/devicetree/bindings/media/video-interfaces.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/media/video-interfaces.yaml b/Documentation/devicetree/bindings/media/video-interfaces.yaml index a211d49dc2ac..26e3e7d7c67b 100644 --- a/Documentation/devicetree/bindings/media/video-interfaces.yaml +++ b/Documentation/devicetree/bindings/media/video-interfaces.yaml @@ -160,6 +160,7 @@ properties: $ref: /schemas/types.yaml#/definitions/uint32-array minItems: 1 maxItems: 8 + uniqueItems: true items: # Assume up to 9 physical lane indices maximum: 8 From patchwork Mon Jul 31 08:29:21 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128478 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1885060vqg; Mon, 31 Jul 2023 02:02:23 -0700 (PDT) X-Google-Smtp-Source: APBJJlEnvrexNKLoD7QgtL+IgssAJz3Wu2FSlkKkmyF72ky6W6Wbb2HQ7RaVG7If/knytsCVpSnd X-Received: by 2002:a17:90a:4a03:b0:264:a14:ce19 with SMTP id e3-20020a17090a4a0300b002640a14ce19mr7480358pjh.20.1690794142978; Mon, 31 Jul 2023 02:02:22 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690794142; cv=none; d=google.com; s=arc-20160816; b=vlCTq7/27Vsj3myClBhYcOcS+j1SW6rNDUSqUp86iphsqjO8QArLNwtP4/EBZ0/y+/ nbPSHxEg5Uslv1NOCuzda5eilPH0sYEKMG4eggYC7rue4+Od8QMMgQJ2rlsPFtmM6BtW tvhSb0mQZwYT+eFNBoMybhGMdqK7o59PFGuuWmny8GgAKmcKdHd9vXAl8bRh1OmQADmy U1kFvWjUKmZ5KNUxwpVrYM/2BfSSmaZWtRSBmhZxy8vJ/jJNmRwD4anthgTEqbk+14em WWr+0FPgLxMKZBq6RaasvJosr83DOIPW3S8QfFYVmWUL1kJCoHxMYyoQYa/8WHAg6hzV TjnA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=VxN1eO0EV5FCfzTt4Xq/2iHHu69kw7ABwjJVLqhU40w=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=nbsLoJSi0n0eWbEGxSc9aB0ZAa5iP7i3jJLKD575imRTkWXnW93pMOW5WZCoIllBdS 3xr7B1mW8ZJwhfADP3WKxSiG/JC/9Wjpw+TsEXAbmIyfeL7PFDX0PUzeC9/SYRCrFgBR FT4gZ8+KxAXuakV42XpoB+Bq3P0plHvPnuwJndSKiNZLRzTWxAabIuTPuPnoxdhUimTo fG2VHr9gYetahmFHyOlGwZNJhbTdYRivjPhgDQw+Ctzo1NqxRklUzDLaiTzIrkBX8yO8 ciSy3xDgcoL6ojmusVWyRE9rlszIsa4muGdi0jBNYdl6heP9rayCtPC6KKvVS9NvBmeX Es0Q== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=Qk1R8jLT; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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Signed-off-by: Jai Luthra Acked-by: Krzysztof Kozlowski --- New in v8 Documentation/devicetree/bindings/media/cdns,csi2rx.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/media/cdns,csi2rx.yaml b/Documentation/devicetree/bindings/media/cdns,csi2rx.yaml index 30a335b10762..2008a47c0580 100644 --- a/Documentation/devicetree/bindings/media/cdns,csi2rx.yaml +++ b/Documentation/devicetree/bindings/media/cdns,csi2rx.yaml @@ -18,6 +18,7 @@ properties: items: - enum: - starfive,jh7110-csi2rx + - ti,j721e-csi2rx - const: cdns,csi2rx reg: From patchwork Mon Jul 31 08:29:22 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128459 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1881992vqg; Mon, 31 Jul 2023 01:54:27 -0700 (PDT) X-Google-Smtp-Source: APBJJlHuSgTLwbR3AsZ4qir0xpPe3/5+FapomwGx+V6IN4FH7I7mWAdqdxTfOJTNnxcVA4Hw91Xw X-Received: by 2002:a05:6a20:a11d:b0:13d:3b4d:e4b4 with SMTP id q29-20020a056a20a11d00b0013d3b4de4b4mr7032153pzk.9.1690793667466; Mon, 31 Jul 2023 01:54:27 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690793667; cv=none; d=google.com; s=arc-20160816; b=AfaepTOazT8iId94vUNaVqwMQWZbWHucIrugxcoKAodI5M1iLf07DnEv/tBhAlkD0n fdtNb9uUD22RGZYqSumD03CTBXAsgjt4asB2vMVBv1apL5rwN4v4Lh3uWRNlY1aK1Iax mgTwEHmuZDOC+ea4Fb9I1DHbQfB8yeX1JkpTlkEVDbQBGDMKn/KhW2Mu6YeV5oqJIzX1 esax0wTeCbDZtcNl66LKkk/xIsh3STs3d/C5VSTXvrvYczbu+d8jeQVVE+GhF1WSlq+y ZK8W24zmoVzA+GQZmBFpN8jZJYLgnoEYB5s89PORzHhZeokZz9Hb9OD+BBX05BS59PVh 8g6g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=psuyjoOHFt8mMG0vCLisbP0KuLODJVZVf6ULOORRK/g=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=Y+0pvNcEh+EaQ+zVqs2xP6r669OV2VmWcO6l2+yXSWJauc/RTJjHJXdinzU/cY0sun GBg5xfgcA9dSJJ0PDhNZAWIZcSpPL6paq0fPP6dYFTN09hKcL6eIdkhCP0WnsYmsJmGI jNtgU5kxcpXxwx/t7XOjZGx9e9tGycYsAHoJUNRWTQ85+hylgiNIbi42Zr8qLL6xTGPS yBjZssbciYogE2l0KUi2sDdX6r7QyqS+Ad8tYHM7ekuG6QKpv1I9InX7N5p/W6CQyYh5 L90hFhiszHLdOXv56J/JKZcweLmD2EjOwqt/VKFBhHUhpcGaDnUOVRCxr6fR6kvOeBgO i2fQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=vvgleiXN; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772925660361877058 X-GMAIL-MSGID: 1772925660361877058 Multiple TI SoCs (J721E, AM62) use this CSI2RX receiver, integrated with an external DPHY and a pixel-grabber IP that unwraps the pixel data and send it to memory via DMA. Add a separate compatible for the TI-specific version of this IP. Signed-off-by: Jai Luthra --- New in v8 drivers/media/platform/cadence/cdns-csi2rx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index 0d879d71d818..b087583d636f 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -559,6 +559,7 @@ static void csi2rx_remove(struct platform_device *pdev) static const struct of_device_id csi2rx_of_table[] = { { .compatible = "starfive,jh7110-csi2rx" }, + { .compatible = "ti,j721e-csi2rx" }, { .compatible = "cdns,csi2rx" }, { }, }; From patchwork Mon Jul 31 08:29:23 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128512 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1901467vqg; Mon, 31 Jul 2023 02:45:48 -0700 (PDT) X-Google-Smtp-Source: APBJJlFT/+YNRuihMhxmv795RYbozsd0d0+3uJgROrCSQZ6ovxZdWUhahJG/QGupA1rIMLuC/biq X-Received: by 2002:a05:6a21:9996:b0:f3:33fb:a62b with SMTP id ve22-20020a056a21999600b000f333fba62bmr11329613pzb.9.1690796748309; Mon, 31 Jul 2023 02:45:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690796748; cv=none; d=google.com; s=arc-20160816; b=rUUz9TWM36n74cCc6+88QtRAN+T75VNbAJCw/dczCUbwRC0hdl7NE0GTYMzWePw8Om 31QTF2yd7w0r6YAjFHsScvGPYkKLadfBE1QvuZrm+yx3RU2+4XgIEiYG1ysTSgirz9UH YlaKNsGhSnfKsjgLGrYdwvIESjqQL0punyDkiTLW6/BkKyccdmDLuBCeHM/CMDdJyAAn HbXgymTXjXbKU02O/wgR/C+O+4fcL5TyZQcjwMqb33n7zRZ/Okm2LxEeL0Yoku6s7R6K WAd/QPOtRDdff1/mXyC0y7YY+t4Nh0HqP8YrQY5eTgHCdF2fn4jaLQY3Vt7og4Dorjpt HnNQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=XCLhxGIh0JMo06o/BSCav3HQdiHa7RMxdoLTIchqhEM=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=P2liQtJX87HkmqFH3f1spQzj+G6g7Sct6osLy9kxKj9CnK4B83q5mIQrqhf7ukVHfD Bn3tK9da/lhoDiE4G3jUTBhmETeJAeDWI1LZlb+L499qOXWV3PWGD/4FssI882HdAF8F lTssB1uKiiTNqFE9YG+viVfYUeIM4d9R+dsS9YmmrSmdtuTZeFhR5TIcGxGN101ElVWy 4akzszdvmtB0NA/y3afYmow7hl40GWYqGS8/Q4qrQ7yreNHDV1efYT4VxYR51WkAfehb +Nd0/9bAnCyUawbDJ+/1ZJixrBQhsptetQKVG4HkgRaq+QW0196IEbH2gyaGrS2a5ZnB q7Ow== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=fVCyuHRU; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id g12-20020a170902c98c00b001bb2ef676c4si6844659plc.202.2023.07.31.02.45.35; Mon, 31 Jul 2023 02:45:48 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=fVCyuHRU; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231862AbjGaIaP (ORCPT + 99 others); Mon, 31 Jul 2023 04:30:15 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44862 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230223AbjGaI3z (ORCPT ); Mon, 31 Jul 2023 04:29:55 -0400 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 115F0127; Mon, 31 Jul 2023 01:29:53 -0700 (PDT) Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 36V8Tetc038392; Mon, 31 Jul 2023 03:29:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1690792180; bh=XCLhxGIh0JMo06o/BSCav3HQdiHa7RMxdoLTIchqhEM=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=fVCyuHRUuCHk3JvHH59qrMM46e3S6FPn0KPSIeii3/qWyn711v/1+2Ih3FNGJ4Zu9 wbGJBTpHkqwj2E92VLDvXpvaNrgPs6LC1H9/HFRJVOQAmcK7iGcW6M7hZ1njg6xNqV JYCusBFLmGLOKjKQBlBctFvrycRhGrMVmn9Ip9jY= Received: from DFLE110.ent.ti.com (dfle110.ent.ti.com [10.64.6.31]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 36V8TeP2087116 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Mon, 31 Jul 2023 03:29:40 -0500 Received: from DFLE100.ent.ti.com (10.64.6.21) by DFLE110.ent.ti.com (10.64.6.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Mon, 31 Jul 2023 03:29:39 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DFLE100.ent.ti.com (10.64.6.21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 31 Jul 2023 03:29:39 -0500 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 36V8Tcll041877; Mon, 31 Jul 2023 03:29:39 -0500 From: Jai Luthra To: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , Laurent Pinchart , Tomi Valkeinen CC: , , , , Mauro Carvalho Chehab , Maxime Ripard , , Benoit Parrot , Vaishnav Achath , Vignesh Raghavendra , , , Subject: [PATCH v8 05/16] media: cadence: csi2rx: Unregister v4l2 async notifier Date: Mon, 31 Jul 2023 13:59:23 +0530 Message-ID: <20230731-upstream_csi-v8-5-fb7d3661c2c9@ti.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com> References: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1975; i=j-luthra@ti.com; h=from:subject:message-id; bh=+YOzaFzKohVYP5/t2gn60sO0ibX33jElyGn3hPBpAhI=; b=owEBbQKS/ZANAwAIAUPekfkkmnFFAcsmYgBkx2xn/UaZtrwZ4+2f3CzegNcUSOS6sBYFG007b a77xSczFEaJAjMEAAEIAB0WIQRN4NgY5dV16NRar8VD3pH5JJpxRQUCZMdsZwAKCRBD3pH5JJpx Ra5jD/0TqyaKA+b83CHJ1HPeha7SDdH5GpICOomliq/F3IURrIFM2MwsaWLIO4URUuHEpxcp7oS p5+gxHzGCwsdBgy6hH+UV50X2hnLOWnJAlP0CBUZKl5VDohglN9F64A7Mk6QvGHn/Wn7hh2GbO6 0XcwvenndaxhVlw8LC9EAbcHcvQWCW6ZSFql7MZjDoXtJwdYFQNCB1eYEp1sFm+Fvj5+Fiql76a hLSHXAoOHYxAolvUvZLjOttNUd3kzfql7T/NOOduFDVJtFar/R6qxh2CnOJARSQa2XyCC6PRlA9 vLc0/q40lfT23sx31fe7vrnJ7JJ4qb+cGTod7HAveMkLpmQewfVh3+QbeIsaBl4E5FiM0Kr5VHa 461m9x8TmyKiQYW6g9KIBlQdaPt+i4DLg4IkcVLYoeCHV83eflDfu81OypknogiY8beA7lEekym BQ/2kmq98mlPbJsJD2Jso0frx/7DVU6SFEn9aAzVzc0wR7ChikNQYUGoHhKxZbrbW+efKCRWQuJ maqZ2I4XIpOObVwlRuljqdQ/bWrK0FdlARmfSoyBuErjLwp5sCUIZYqaaafXwi2FCRadUVhX+p1 LPUW2eDpxpOPpn98xng91g1ACG8ONDOsSkHCV3H8JQM/bhavyLBbg6o50bmuyAwAprkH6sclTus 8H5z0E++kLY/bvw== X-Developer-Key: i=j-luthra@ti.com; a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772928891169436514 X-GMAIL-MSGID: 1772928891169436514 From: Pratyush Yadav The notifier is added to the global notifier list when registered. When the module is removed, the struct csi2rx_priv in which the notifier is embedded, is destroyed. As a result the notifier list has a reference to a notifier that no longer exists. This causes invalid memory accesses when the list is iterated over. Similar for when the probe fails. Unregister and clean up the notifier to avoid this. Fixes: 1fc3b37f34f6 ("media: v4l: cadence: Add Cadence MIPI-CSI2 RX driver") Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen --- v7->v8: No change drivers/media/platform/cadence/cdns-csi2rx.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index b087583d636f..fd6f2e04e77f 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -479,8 +479,10 @@ static int csi2rx_parse_dt(struct csi2rx_priv *csi2rx) asd = v4l2_async_nf_add_fwnode_remote(&csi2rx->notifier, fwh, struct v4l2_async_connection); of_node_put(ep); - if (IS_ERR(asd)) + if (IS_ERR(asd)) { + v4l2_async_nf_cleanup(&csi2rx->notifier); return PTR_ERR(asd); + } csi2rx->notifier.ops = &csi2rx_notifier_ops; @@ -543,6 +545,7 @@ static int csi2rx_probe(struct platform_device *pdev) return 0; err_cleanup: + v4l2_async_nf_unregister(&csi2rx->notifier); v4l2_async_nf_cleanup(&csi2rx->notifier); err_free_priv: kfree(csi2rx); @@ -553,6 +556,8 @@ static void csi2rx_remove(struct platform_device *pdev) { struct csi2rx_priv *csi2rx = platform_get_drvdata(pdev); + v4l2_async_nf_unregister(&csi2rx->notifier); + v4l2_async_nf_cleanup(&csi2rx->notifier); v4l2_async_unregister_subdev(&csi2rx->subdev); kfree(csi2rx); } From patchwork Mon Jul 31 08:29:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128515 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1901895vqg; Mon, 31 Jul 2023 02:47:08 -0700 (PDT) X-Google-Smtp-Source: APBJJlF8gu+dlOgIsofYxZld1x6E0Hk+i0SIIKaiXXbKLpc2AJzvZY73f81mxoqRCHOT+0DwNv4A X-Received: by 2002:a17:907:2722:b0:994:5b1:6f92 with SMTP id d2-20020a170907272200b0099405b16f92mr4990309ejl.3.1690796827581; Mon, 31 Jul 2023 02:47:07 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690796827; cv=none; d=google.com; s=arc-20160816; b=n56DYVCciJupcr7K2amNsOe9SE5EGHsAJRNdUtSc1BmGLAKRr81xxCV/0mUG8YDjgk w9nkv5mD61VzBgb6X1+sADeW+VncACTUDIHZ2gRrksB2UoF2rnYd/hEpMmHS6OcHA6r0 Ku0VtVmuxcBVfnTgaZSbQ4gWOIbLI5DbIaVmSdiwyde9HdxJMVjRTVe8aNqGMBG6UKXf 1pZKWtv9bFEI12+lEJP08tGeZGpsJs2e+uyTc25cZafNkM8da54d8swgEz8A5Hq6C2wT nRsUGi7NIChlulYvrFGEF0n9KH2wXG3eV7jCfw+VCH7rBRn/cKRL6Tz9kaFj9yUgNvD0 Akmw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=UOzPrpvrAan+2YOZvNNDCtx6iMkW9nNmhwzPh28ka0M=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=iyT8CoFLoZmmI8D6x6YRyZKkThzvYZzGqH9Tyoqp7sHcPyQ6UE/Uq0CL9V4+lnxRgx 7P8Ptsjao6COAvV3Ns21MsqlfHDkeV2NA9xFJfNHWmkN9zLU0cU41NBhc/ToB9Li+F7B ckFRZZIYBkLNIqkw6pChv2Y5RM7yyLXqLMo5l6ry8mfZEmPSyC2mgWCNj2/Vox43tX8F jgkhrSJyf1vRkb2mZ9Dmgm3uCE8ghQwRVTGgZpYhffIbyZ24/qcWvHWITt00AO+C+uVI yyzPE6mFA3JUNwTe98JXvuukV6BZi5I7UAvIy72BuT19LtkDHel6t2R8x9pPrceZuCK4 rQhA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=KE19ul9Q; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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Mon, 31 Jul 2023 03:29:41 -0500 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id 36V8TeAt084043; Mon, 31 Jul 2023 03:29:41 -0500 From: Jai Luthra To: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , Laurent Pinchart , Tomi Valkeinen CC: , , , , Mauro Carvalho Chehab , Maxime Ripard , , Benoit Parrot , Vaishnav Achath , Vignesh Raghavendra , , , Subject: [PATCH v8 06/16] media: cadence: csi2rx: Cleanup media entity properly Date: Mon, 31 Jul 2023 13:59:24 +0530 Message-ID: <20230731-upstream_csi-v8-6-fb7d3661c2c9@ti.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com> References: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com> MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1303; i=j-luthra@ti.com; h=from:subject:message-id; bh=UZ5eyfvSIzx+FQ/gGLzq2vP4ZopnTLmh1IJ7xWs2U20=; b=owEBbQKS/ZANAwAIAUPekfkkmnFFAcsmYgBkx2xoegS/F2QsddEvnqMpxz/degD+RhScslhFK 3SM1fe3S6iJAjMEAAEIAB0WIQRN4NgY5dV16NRar8VD3pH5JJpxRQUCZMdsaAAKCRBD3pH5JJpx RQG6D/9cucLIG7FRt1HoAr6w943bkf63JWUlSXh5s6itR0Y9RxYwsA+S5t1axrfJuBJTMzwEMgH 5ry8h4K2ZY5yJ6iNdQcfilFgzHP+g0Wn9bzjZKER+jtBRZdToltgZomwU49vw07vOzkSKhPkarG +Vt7Vu0zzKSV8DU4DLJKLYJLQIlpsOZQhPQmU4PbwCl86WaIRO2i45dm8yF9HraDnuZZYJjl8SZ 9afRp/3Xfv1XsZDy/HFdnNr9akLtpZuwrqQZjAfhvrw/oI8s9alVpyWHSH8M3Op3mmiAjKe66Ly 22ag/oZbC0v5bNyDpRndMR0cYvpQv+9UelIFjsoKicUU7L/uQyLKBJjEUK/hbv9G9WBMyary9XP utdvl1vsSg5Vv/SPCw8sTOBJ6/DZXKNk1i8FkmRH9CKop0M+7hH5CksQ9Zz4ZfSSYldXjnjZDgZ xbjQxuLEOpDUEBRzxqm84X16NwntnFet/fJdnqztFxtYlDc4lvDOVlRvKSUXO7i0ah0gAsjCgWV 8MZ9ITbiCAy6XrRJvMztkOQNe+7PU7MLTSw5DGpdd9a7s2wZU4+RimpPScqj+p82CB+SCbtHF0R ssETAvW9CPqU1hGhLXT0Q4KLFEUhlbg+pr5WPbNOJy30PdQ/AF/0a85Ame7xtgy5Teld7EHrTyu HkzJs6SU8l8zt7w== X-Developer-Key: i=j-luthra@ti.com; a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772928974064740210 X-GMAIL-MSGID: 1772928974064740210 From: Pratyush Yadav Call media_entity_cleanup() in probe error path and remove to make sure the media entity is cleaned up properly. Suggested-by: Laurent Pinchart Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen --- v7->v8: No change drivers/media/platform/cadence/cdns-csi2rx.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index fd6f2e04e77f..83d1fadd592b 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -547,6 +547,7 @@ static int csi2rx_probe(struct platform_device *pdev) err_cleanup: v4l2_async_nf_unregister(&csi2rx->notifier); v4l2_async_nf_cleanup(&csi2rx->notifier); + media_entity_cleanup(&csi2rx->subdev.entity); err_free_priv: kfree(csi2rx); return ret; @@ -559,6 +560,7 @@ static void csi2rx_remove(struct platform_device *pdev) v4l2_async_nf_unregister(&csi2rx->notifier); v4l2_async_nf_cleanup(&csi2rx->notifier); v4l2_async_unregister_subdev(&csi2rx->subdev); + media_entity_cleanup(&csi2rx->subdev.entity); kfree(csi2rx); } From patchwork Mon Jul 31 08:29:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128476 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1884986vqg; Mon, 31 Jul 2023 02:02:13 -0700 (PDT) X-Google-Smtp-Source: APBJJlEJdQmmu7nSMk4ZTcPgxz5+x3DbeN3aNVygKe4iG6vjaT6tQcDc7r4I5bQaSTN7Z+jdICjd X-Received: by 2002:a05:6e02:1569:b0:348:d70e:b7f0 with SMTP id k9-20020a056e02156900b00348d70eb7f0mr8223839ilu.32.1690794133598; Mon, 31 Jul 2023 02:02:13 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690794133; cv=none; d=google.com; s=arc-20160816; b=Qec922WbFLwALkCgJ3GrFXsXkxxXGs5TNvfsds+AGVJSQ1C1aeyNSvYAEmzii6w8Tm AdOWo5znp3JGA+3j9JnqWj4K/gTB8WArcVX1DRCrBm922x1P1KAHp9cFYM72zPX0XPUH gCG94i6A2kM+JalOXZe77u5eLeIxTnVz4QZ7zXGK/4ANvEksVZBdW2F+ALzSFAiGErgK qYRXZWuBCqf1/WLI0VP++oeJt62C33kbK8/L7sFG5YuocCWXcVEbcqxOBa5ermJLedBB H7gHGB6DxTFdsJdR7zYk+o7yAaBuREqpyVxpeZ6bdK9blei+MnS8uAEMY7BoRc4729ol DXpQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=f11LvrUHHrhSxqoyWhzGOI4P5iMX9ShOjPmVP2XMkJg=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=ztZQVAZyolnK1VMgYXFqqZ2T+2u6RMZ8SlqWUxbwPi4JaeV9CLAr6Ea9yBswhpccOG SbpxWofyS39RgbkE6wu36Ku0VWrUloTvJmLW1zIAOZOzjmPIuXoxLEAKuLYBZoI4luDK X5su7qX4QRN2BRNX4EtYzfb9mQSZxWnW5q7ARGOV0w5LpB+lPOMoBD8qyqmpGkySCfHQ jEmiCSRmg2AaWHlGuISXSNR+9T2ACQLcQ3RQbCf3aJWUpnYuKxImMKNkkTnbVYBrXHyf Dmd8+2TRmGOChSWMXqK/g5IOTl+XqPfzlKWvxws54u19hIBWt5MB1gimNuvo2SSILiBC cjZg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=d+n44sdD; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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It is not right to query the format from the source subdev. Add get_fmt and set_fmt pad operations so that the format can be configured and correct bpp be selected. Initialize and use the v4l2 subdev active state to keep track of the active formats. Also propagate the new format from the sink pad to all the source pads. Signed-off-by: Pratyush Yadav Co-authored-by: Jai Luthra Signed-off-by: Jai Luthra --- v7->v8: - Use active subdev state to use v4l2_subdev_get_fmt - Propagate formats from sink to source pads - Drop Laurent's R-by because of the above changes drivers/media/platform/cadence/cdns-csi2rx.c | 107 ++++++++++++++++++++++++++- 1 file changed, 106 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index 83d1fadd592b..4f9654366485 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -61,6 +61,11 @@ enum csi2rx_pads { CSI2RX_PAD_MAX, }; +struct csi2rx_fmt { + u32 code; + u8 bpp; +}; + struct csi2rx_priv { struct device *dev; unsigned int count; @@ -95,6 +100,36 @@ struct csi2rx_priv { int source_pad; }; +static const struct csi2rx_fmt formats[] = { + { + .code = MEDIA_BUS_FMT_YUYV8_1X16, + .bpp = 16, + }, + { + .code = MEDIA_BUS_FMT_UYVY8_1X16, + .bpp = 16, + }, + { + .code = MEDIA_BUS_FMT_YVYU8_1X16, + .bpp = 16, + }, + { + .code = MEDIA_BUS_FMT_VYUY8_1X16, + .bpp = 16, + }, +}; + +static const struct csi2rx_fmt *csi2rx_get_fmt_by_code(u32 code) +{ + unsigned int i; + + for (i = 0; i < ARRAY_SIZE(formats); i++) + if (formats[i].code == code) + return &formats[i]; + + return NULL; +} + static inline struct csi2rx_priv *v4l2_subdev_to_csi2rx(struct v4l2_subdev *subdev) { @@ -303,12 +338,75 @@ static int csi2rx_s_stream(struct v4l2_subdev *subdev, int enable) return ret; } +static int csi2rx_set_fmt(struct v4l2_subdev *subdev, + struct v4l2_subdev_state *state, + struct v4l2_subdev_format *format) +{ + struct v4l2_mbus_framefmt *fmt; + unsigned int i; + + /* No transcoding, source and sink formats must match. */ + if (format->pad != CSI2RX_PAD_SINK) + return v4l2_subdev_get_fmt(subdev, state, format); + + if (!csi2rx_get_fmt_by_code(format->format.code)) + format->format.code = formats[0].code; + + format->format.field = V4L2_FIELD_NONE; + + /* Set sink format */ + fmt = v4l2_subdev_get_pad_format(subdev, state, format->pad); + if (!fmt) + return -EINVAL; + + *fmt = format->format; + + /* Propagate to source formats */ + for (i = CSI2RX_PAD_SOURCE_STREAM0; i < CSI2RX_PAD_MAX; i++) { + fmt = v4l2_subdev_get_pad_format(subdev, state, i); + if (!fmt) + return -EINVAL; + *fmt = format->format; + } + + return 0; +} + +static int csi2rx_init_cfg(struct v4l2_subdev *subdev, + struct v4l2_subdev_state *state) +{ + struct v4l2_subdev_format format = { + .which = state ? V4L2_SUBDEV_FORMAT_TRY + : V4L2_SUBDEV_FORMAT_ACTIVE, + .pad = CSI2RX_PAD_SINK, + .format = { + .width = 640, + .height = 480, + .code = MEDIA_BUS_FMT_UYVY8_1X16, + .field = V4L2_FIELD_NONE, + .colorspace = V4L2_COLORSPACE_SRGB, + .ycbcr_enc = V4L2_YCBCR_ENC_601, + .quantization = V4L2_QUANTIZATION_LIM_RANGE, + .xfer_func = V4L2_XFER_FUNC_SRGB, + }, + }; + + return csi2rx_set_fmt(subdev, state, &format); +} + +static const struct v4l2_subdev_pad_ops csi2rx_pad_ops = { + .get_fmt = v4l2_subdev_get_fmt, + .set_fmt = csi2rx_set_fmt, + .init_cfg = csi2rx_init_cfg, +}; + static const struct v4l2_subdev_video_ops csi2rx_video_ops = { .s_stream = csi2rx_s_stream, }; static const struct v4l2_subdev_ops csi2rx_subdev_ops = { .video = &csi2rx_video_ops, + .pad = &csi2rx_pad_ops, }; static int csi2rx_async_bound(struct v4l2_async_notifier *notifier, @@ -532,9 +630,13 @@ static int csi2rx_probe(struct platform_device *pdev) if (ret) goto err_cleanup; + ret = v4l2_subdev_init_finalize(&csi2rx->subdev); + if (ret) + goto err_cleanup; + ret = v4l2_async_register_subdev(&csi2rx->subdev); if (ret < 0) - goto err_cleanup; + goto err_free_state; dev_info(&pdev->dev, "Probed CSI2RX with %u/%u lanes, %u streams, %s D-PHY\n", @@ -544,6 +646,8 @@ static int csi2rx_probe(struct platform_device *pdev) return 0; +err_free_state: + v4l2_subdev_cleanup(&csi2rx->subdev); err_cleanup: v4l2_async_nf_unregister(&csi2rx->notifier); v4l2_async_nf_cleanup(&csi2rx->notifier); @@ -560,6 +664,7 @@ static void csi2rx_remove(struct platform_device *pdev) v4l2_async_nf_unregister(&csi2rx->notifier); v4l2_async_nf_cleanup(&csi2rx->notifier); v4l2_async_unregister_subdev(&csi2rx->subdev); + v4l2_subdev_cleanup(&csi2rx->subdev); media_entity_cleanup(&csi2rx->subdev.entity); kfree(csi2rx); } From patchwork Mon Jul 31 08:29:26 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128500 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1898110vqg; Mon, 31 Jul 2023 02:36:15 -0700 (PDT) X-Google-Smtp-Source: APBJJlGuowycAXdigAo7PZlIx6QZcY+O6cMNjDKBoR4/FE0CdxiJJNqIuXCGfGkWAq8TEOw0MQBC X-Received: by 2002:a05:6402:1b1a:b0:522:5932:57ec with SMTP id by26-20020a0564021b1a00b00522593257ecmr7452081edb.41.1690796175153; Mon, 31 Jul 2023 02:36:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690796175; cv=none; d=google.com; s=arc-20160816; b=NLzI4S59FivVxbkUV6Q1lhAV7ZOBWUHcUmr6CMzHVgTyjXqiFk1yXFHTiIeKizuiqr uSRmGFdGnlfxC4z7DeEdygAfSsrY9bCSIcXDhQmgZIfUmN1+4U0AkNiZ/mRkPZRblxoX 2ylklv42D5SSj6Hj/4en39ANNJNmDVQtP4k4ykfvWM4Th7U3Ts1dP9EPvBFhbahsVhLQ N8iqTl+KgghRtL2Ya2VCF8pEfiZLdqw4jc+/w9D9I1p/iLLh89O3ISikXbZy1d9sMl7o omdp32TJB06ta/3BRhncM3M9qX4SXexKnbth4riu+mtykhDSY5nyHy3xpDGkQZZd2Sl8 lWFg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=E9UkcS+2VXbNP1qkq12sT+ScQLrPo9DPV31sM7WES4k=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=d4M99QHsxfwWPvVcoCH7CRZAHktcDboQjTRjwdh7XQsEoEoVQbEKM3j/7EZxfeSOiF eo0Sv9gsaJdM/5y+zIT78I7jp3miOTVh6dpynfx8W4xr7e0aHBXAUNs3CHyEyu8JhljK /7Gk2RiXyduObRhysed2A9k/OZt814knqETzW6UR7cMJS2m3yT9peYxjnUdO4nsYI5VP 80t5iLtClZnshS/7mSTHD7zTVP+2cRXAvZTFD/idAsl15AiP8bk+Z1h+IHaHKLwQSoOv FvxT3Pu7HknSfa/9hMnZ+fC2mkFW19E1a8glRqBW025szfpnSwZEHD76jsuscg00DfZF pqYw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=B33Hlm9i; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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Use the generic PHY framework to configure the DPHY with the correct link frequency. Signed-off-by: Pratyush Yadav Co-authored-by: Jai Luthra Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen --- v7->v8 - Drop original patch in-lieu of already merged https://lore.kernel.org/linux-media/20230523085626.3295-5-jack.zhu@starfivetech.com/ - Add a new patch to configure DPHY using link_freq control from the source drivers/media/platform/cadence/cdns-csi2rx.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index 4f9654366485..2a80c66fb547 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -149,8 +149,33 @@ static void csi2rx_reset(struct csi2rx_priv *csi2rx) static int csi2rx_configure_ext_dphy(struct csi2rx_priv *csi2rx) { union phy_configure_opts opts = { }; + struct phy_configure_opts_mipi_dphy *cfg = &opts.mipi_dphy; + struct v4l2_subdev_format sd_fmt = { + .which = V4L2_SUBDEV_FORMAT_ACTIVE, + .pad = CSI2RX_PAD_SINK, + .stream = 0, + }; + const struct csi2rx_fmt *fmt; + s64 link_freq; int ret; + ret = v4l2_subdev_call_state_active(&csi2rx->subdev, pad, get_fmt, + &sd_fmt); + if (ret < 0) + return ret; + + fmt = csi2rx_get_fmt_by_code(sd_fmt.format.code); + + link_freq = v4l2_get_link_freq(csi2rx->source_subdev->ctrl_handler, + fmt->bpp, 2 * csi2rx->num_lanes); + if (link_freq < 0) + return link_freq; + + ret = phy_mipi_dphy_get_default_config_for_hsclk(link_freq, + csi2rx->num_lanes, cfg); + if (ret) + return ret; + ret = phy_power_on(csi2rx->dphy); if (ret) return ret; From patchwork Mon Jul 31 08:29:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128465 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1884158vqg; Mon, 31 Jul 2023 02:00:38 -0700 (PDT) X-Google-Smtp-Source: APBJJlGBr0Nw7oaAc4SQLmirU/mSs+Kz6s2J0HMmZuqkBpil55CPqxzlCKVT05iN8nQFU+k/hZGa X-Received: by 2002:a17:90b:8cf:b0:268:214f:ae69 with SMTP id ds15-20020a17090b08cf00b00268214fae69mr8087741pjb.35.1690794037854; Mon, 31 Jul 2023 02:00:37 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690794037; cv=none; d=google.com; s=arc-20160816; b=vJecrm2zlqgoVWKbPFPzjH2GsV+8rS8XvO5qcNGa0TJ20OztmaAlNkwyjENJvI1Y/g dx+10XSiFR5PAYwj3KSdbyDstMgZ7qBOMYRXqJkWVDyh+NxSjeMgib6gmjGHpVOWuyOR SNXLCMYhS+yRd9YJMe7v8bkIMD4CGiDX+nFcbYKf4ca1zVEuXkbJZjPAHZz4vyvqKBir tO562B5e5eU4bDsRf4IIrJI42w1kVsVD7m1GKbDXeUlAtHg7F3AhMHDnK9Bc7HQR13zo wc6BAQm1cW6DzJGKxLGu+bSG7VhPjCjVDuaukq040L+aldv/kxX46po9VsLvkZ/tBcU2 RdRQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=dKmMEpqsVJQCvV6Lp8DGVqTPdKyQoRAETp9L6a97G68=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=sFp8p7tuMdY/zj78b7NLFmVak7euCnZ5Yo57pmY2iU8iHS/blXv2qR8TcuCrhgwvV3 9QllzUKTVGSgO9YRG0ai8s3ctVjNw2/CRA4vCGFqddNVe3aTUvOPlANdZLMwmfmA56xG +39ISS9cughjJ8MtjZZ9yaoY1yoV/UgwjBygNdseyGR5eK8B85NS8cuNt9N3oFDx/Lme 8hd8nVerw4avOxFKX8c5oDMxNK63Qd4f3MVHFyPVudNcSm3LSArNDy0X2GsHHXCHUJnS x7N4fdqeINtmJHByUH/yWx3OW0vjfiqwYKG9k6/ZIMGKOuc3h5ozDRj7tSm9eJMtoJiy 6EDQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=LkR2METc; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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On J721E if the streams are not reset before starting the capture, the captured frame gets wrapped around vertically on every run after the first. Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart --- v7->v8: No change drivers/media/platform/cadence/cdns-csi2rx.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index 2a80c66fb547..30cdc260b46a 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -40,6 +40,7 @@ #define CSI2RX_STREAM_BASE(n) (((n) + 1) * 0x100) #define CSI2RX_STREAM_CTRL_REG(n) (CSI2RX_STREAM_BASE(n) + 0x000) +#define CSI2RX_STREAM_CTRL_SOFT_RST BIT(4) #define CSI2RX_STREAM_CTRL_START BIT(0) #define CSI2RX_STREAM_DATA_CFG_REG(n) (CSI2RX_STREAM_BASE(n) + 0x008) @@ -138,12 +139,22 @@ struct csi2rx_priv *v4l2_subdev_to_csi2rx(struct v4l2_subdev *subdev) static void csi2rx_reset(struct csi2rx_priv *csi2rx) { + unsigned int i; + writel(CSI2RX_SOFT_RESET_PROTOCOL | CSI2RX_SOFT_RESET_FRONT, csi2rx->base + CSI2RX_SOFT_RESET_REG); udelay(10); writel(0, csi2rx->base + CSI2RX_SOFT_RESET_REG); + + /* Reset individual streams. */ + for (i = 0; i < csi2rx->max_streams; i++) { + writel(CSI2RX_STREAM_CTRL_SOFT_RST, + csi2rx->base + CSI2RX_STREAM_CTRL_REG(i)); + usleep_range(10, 20); + writel(0, csi2rx->base + CSI2RX_STREAM_CTRL_REG(i)); + } } static int csi2rx_configure_ext_dphy(struct csi2rx_priv *csi2rx) From patchwork Mon Jul 31 08:29:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128542 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1908538vqg; Mon, 31 Jul 2023 03:03:45 -0700 (PDT) X-Google-Smtp-Source: APBJJlGfcrlIRxZTSqGokQuYO8QBC45QV/4JSctEv5ATrewWqfUTZIhzMeTXt5LlLPAvzHO5YqpL X-Received: by 2002:a17:902:ef8e:b0:1bb:2d0b:1a18 with SMTP id iz14-20020a170902ef8e00b001bb2d0b1a18mr8040205plb.50.1690797824719; Mon, 31 Jul 2023 03:03:44 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690797824; cv=none; d=google.com; s=arc-20160816; b=wdeiZYeZTA7PRdG1i1V/1U115oCTHU1nZpLal7it4HLvpLOYEpHf8d7etnvkqNuxgt 74SdfYxFvuOfZNSRDusBx15ieRKR0d7FeWLs8t0LFI42CetM/WWINRKiGdIu8Xduh2sB 187Q22wd91KXmoPItE0HnD2ApvIh/rzkgCJ2laEljKw3YheU/aS43lfdZcD+LM+nqLtL boRwr8QYVXsy5JortdUF6pyhPOZTJhxYKHLDoZn7RPKS8fS8a545ylFbNkcSNnnkvbby 0si1yzJxmPVgHZjSM6Q2cLzjv+BLBISXi0YTeVGuNmxZfkdKfLDuFofTDc47cSW+76gW ln5A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=tQ6ZBBMuZh67BF7DUCMEDQQSmQ2RVx3GcJBLcvVDOSI=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=IcA6SlCKzVd3vkggDwmWrUMiPD45K6TXIyMayLdb7n41+nUNqhcbIhxdtVZ0iPJOpv NsWsKWhqP/Jm1eTySXhfoAQMMQzTnMnck9QRJGVKCzmZZvXKdqy2corebNHpULPUhdu/ KjSZVMVCz+v/PpL9LqT6u3d6Kiwa2GHrPKhW7pM5vlndqmRt/LjnbXrEf0DAZB0YmOMR 7NYD95/lVI2xNeFhH8YRufO/b1Wc/LszoRODY5rsDeckm1m4MNGrPtYDwbHpkE1Ykw1U +oYf/kW3ExLs4WGhBT7/fyP74zC0SsXL3mTusSoLhrs/bJuhOtfxoxSyUJOCi/lyB7Jp x52g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=mbUZcOCW; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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Mon, 31 Jul 2023 03:29:47 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE107.ent.ti.com (157.170.170.37) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Mon, 31 Jul 2023 03:29:47 -0500 Received: from localhost (ileaxei01-snat2.itg.ti.com [10.180.69.6]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 36V8TkGu041962; Mon, 31 Jul 2023 03:29:47 -0500 From: Jai Luthra To: Mauro Carvalho Chehab , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Sakari Ailus , Laurent Pinchart , Tomi Valkeinen CC: , , , , Mauro Carvalho Chehab , Maxime Ripard , , Benoit Parrot , Vaishnav Achath , Vignesh Raghavendra , , , Subject: [PATCH v8 10/16] media: cadence: csi2rx: Set the STOP bit when stopping a stream Date: Mon, 31 Jul 2023 13:59:28 +0530 Message-ID: <20230731-upstream_csi-v8-10-fb7d3661c2c9@ti.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com> References: <20230731-upstream_csi-v8-0-fb7d3661c2c9@ti.com> MIME-Version: 1.0 X-Developer-Signature: v=1; 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a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772930019716679821 X-GMAIL-MSGID: 1772930019716679821 From: Pratyush Yadav The stream stop procedure says that the STOP bit should be set when the stream is to be stopped, and then the ready bit in stream status register polled to make sure the STOP operation is finished. Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen --- v7->v8: - Fix bug where intention was to wait till stream status is idle, i.e. STREAM_STATUS[31] -> 0 - but we were instead checking the opposite drivers/media/platform/cadence/cdns-csi2rx.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index 30cdc260b46a..a17ef88dff82 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include #include @@ -41,8 +42,12 @@ #define CSI2RX_STREAM_CTRL_REG(n) (CSI2RX_STREAM_BASE(n) + 0x000) #define CSI2RX_STREAM_CTRL_SOFT_RST BIT(4) +#define CSI2RX_STREAM_CTRL_STOP BIT(1) #define CSI2RX_STREAM_CTRL_START BIT(0) +#define CSI2RX_STREAM_STATUS_REG(n) (CSI2RX_STREAM_BASE(n) + 0x004) +#define CSI2RX_STREAM_STATUS_RDY BIT(31) + #define CSI2RX_STREAM_DATA_CFG_REG(n) (CSI2RX_STREAM_BASE(n) + 0x008) #define CSI2RX_STREAM_DATA_CFG_EN_VC_SELECT BIT(31) #define CSI2RX_STREAM_DATA_CFG_VC_SELECT(n) BIT((n) + 16) @@ -314,13 +319,24 @@ static int csi2rx_start(struct csi2rx_priv *csi2rx) static void csi2rx_stop(struct csi2rx_priv *csi2rx) { unsigned int i; + u32 val; + int ret; clk_prepare_enable(csi2rx->p_clk); reset_control_assert(csi2rx->sys_rst); clk_disable_unprepare(csi2rx->sys_clk); for (i = 0; i < csi2rx->max_streams; i++) { - writel(0, csi2rx->base + CSI2RX_STREAM_CTRL_REG(i)); + writel(CSI2RX_STREAM_CTRL_STOP, + csi2rx->base + CSI2RX_STREAM_CTRL_REG(i)); + + ret = readl_relaxed_poll_timeout(csi2rx->base + + CSI2RX_STREAM_STATUS_REG(i), + val, + !(val & CSI2RX_STREAM_STATUS_RDY), + 10, 10000); + if (ret) + dev_warn(csi2rx->dev, "Failed to stop stream%u\n", i); reset_control_assert(csi2rx->pixel_rst[i]); clk_disable_unprepare(csi2rx->pixel_clk[i]); From patchwork Mon Jul 31 08:29:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128470 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1884333vqg; Mon, 31 Jul 2023 02:01:00 -0700 (PDT) X-Google-Smtp-Source: APBJJlFOJtPSJ9RG3OLjLc42dHqgv+hjm9Mz30XTLFvgHIinAI4nVBx71QIIZ3FUIGe3+TcCch6e X-Received: by 2002:a05:6a00:148c:b0:666:8403:9f4 with SMTP id v12-20020a056a00148c00b00666840309f4mr12440928pfu.16.1690794060052; Mon, 31 Jul 2023 02:01:00 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690794060; cv=none; d=google.com; s=arc-20160816; b=OiqboqxEDWDu+7ZqGEeqkqbNpG4a2+5wdK24A7yM8ocXdp1kMD2l3XercK/SQWksYU w0rapBtrmUGe02ol7DOlfi4dCBN+p4mL20EOZXmjV/4hpJTqLeVtePZxVWi3B59xJW1+ HUHVcSEfkICz109wOqCq7kKyRN7AbA6AhkmPF9/Og2GOaDQaMjTqxw/vxahW38nOLLE0 fCQVLEsoXfSYrA5gE3MlESVJPR2RFPxFVc9C6+SAewHguvv0HYYhXY3hHcIOjdQKC+sv 25iS0m9f6qyvogq/2kwG0YQtpZge+kiEOfXEUiaiMVwoJCrzMSqswuEB0gVRlGLIlb07 xlFw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=30ahlwMEWy8UHgZ6OwU/9F3tt2IrND9+tluitn/vXsc=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=o7yK3A5a27gE0h6cmtuX/29T1fw0ShEYe6lDocn1DXevGeHC2SRyqqXImtYFXfBUIP StXnMwCsdE6L8m8NBauVyt4oLsupnW0ay+AJ6Tg+7g9igOZeNmgNGVcng4A300h8H0Q0 dJgm0Loejb1y/X3DasosPaNrwPn0JdJffs3A8er4UmjSOByrhvL2U2+KiDxQ4xl1b0Qw LfHpNvcKOC1QmT78oandG66/LVsSffs2gd4DNe6lkTca+hYo+y6EKjyBpzyPfcp8Jlhl AdAHfM4yXlY/96/Ly2tD5DSAMCLN3wjBjKcBYJFe7bMefGVHvCZQaPABQmPB6kBkHv4o Sb+w== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=vtTEqU6g; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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Bit 31 is part of the VL_SELECT field. Remove it completely. Secondly, it makes little sense to enable ith virtual channel for ith stream. Sure, there might be a use-case that demands it. But there might also be a use case that demands all streams to use the 0th virtual channel. Prefer this case over the former because it is less arbitrary and also makes it very clear what the limitations of the current driver is instead of giving a false impression that multiple virtual channels are supported. Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen --- v7->v8: No change drivers/media/platform/cadence/cdns-csi2rx.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index a17ef88dff82..cde7fd6463e1 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -49,7 +49,6 @@ #define CSI2RX_STREAM_STATUS_RDY BIT(31) #define CSI2RX_STREAM_DATA_CFG_REG(n) (CSI2RX_STREAM_BASE(n) + 0x008) -#define CSI2RX_STREAM_DATA_CFG_EN_VC_SELECT BIT(31) #define CSI2RX_STREAM_DATA_CFG_VC_SELECT(n) BIT((n) + 16) #define CSI2RX_STREAM_CFG_REG(n) (CSI2RX_STREAM_BASE(n) + 0x00c) @@ -275,8 +274,11 @@ static int csi2rx_start(struct csi2rx_priv *csi2rx) writel(CSI2RX_STREAM_CFG_FIFO_MODE_LARGE_BUF, csi2rx->base + CSI2RX_STREAM_CFG_REG(i)); - writel(CSI2RX_STREAM_DATA_CFG_EN_VC_SELECT | - CSI2RX_STREAM_DATA_CFG_VC_SELECT(i), + /* + * Enable one virtual channel. When multiple virtual channels + * are supported this will have to be changed. + */ + writel(CSI2RX_STREAM_DATA_CFG_VC_SELECT(0), csi2rx->base + CSI2RX_STREAM_DATA_CFG_REG(i)); writel(CSI2RX_STREAM_CTRL_START, From patchwork Mon Jul 31 08:29:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128562 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1928517vqg; Mon, 31 Jul 2023 03:50:26 -0700 (PDT) X-Google-Smtp-Source: APBJJlHkup3eGZKkfrduP0oRF3+ylZWVEP0p6Bd30Y303Q2A305DyphhDIzWvsiHlBt8bjprAVqA X-Received: by 2002:a05:6a00:1407:b0:686:6d87:1cd with SMTP id l7-20020a056a00140700b006866d8701cdmr8207028pfu.5.1690800626601; Mon, 31 Jul 2023 03:50:26 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690800626; cv=none; d=google.com; s=arc-20160816; b=yXhe0OiQff4sn37S7K7WIyFN/7xpmGdhkCfH1uj0KNopbkDL8H0ZTH1oQwAJYTwC6g iOSfSxyr5sc3GBSFO8lifQOLCtL7OAvLOG7hC8kBmv/PaQ8kbeo67dZCJzRtn8wE7ilb cnTqAdSqRDN0HbzqQuahcYDSmUJkscruimwQBo9YsEXUqenkkL5ERRk26In++wJzDgrt 26gyBqwOCg6waP6osh6aCmWjDhhviuyPUHKKpgWkDn+uI/NJGveUY9uOwzvIowS4Pw0t d4rhVO5fPV61VbiS2wCH7qliXsdk6cCIKOPSObVRvZYjDCx1iJHbwTh+6OJqwPdftcdV A+GQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=9LgR645lZLrFFA7lQFjm1WM/f1mokP1YHKB+NlsbgeE=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=ET/LWsQnBzBQZ3b8dtPUq4eCNcvvZtKji1ynpmFtJ9FGGUQ0aT5080NFuR9mXfGtXW mADOua9p+tkJdHfBQw3XktPdl+IaNfxFdBB8C+e09H5aMrdlVvUcDSwv1veXiQ63T61e aNXZUsi/pMblce2YrsLEnBgx74xYT6JVim+TuI8ssAZqBAIsQXMmDU7jqS6jNYRKBgvY /c62a2F0NlvwFM/dBCg3niupycBtn92tf7cNnQexGThJPKythf+VwZ+4YpEG/GzpM1KB PsgvYx/Yrt6M1U9Y6kfFR4bgY1kekzb746eRaeXn0CcLyM785ExzdhlmBGJFZe36gQWR r6SQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=oXfCcASe; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772932957753820661 X-GMAIL-MSGID: 1772932957753820661 From: Pratyush Yadav The devnode can be used by media-ctl and other userspace tools to perform configurations on the subdev. Without it, media-ctl returns ENOENT when setting format on the sensor subdev. Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen --- v7->v8: No change drivers/media/platform/cadence/cdns-csi2rx.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index cde7fd6463e1..d82a8938932f 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -678,6 +678,7 @@ static int csi2rx_probe(struct platform_device *pdev) csi2rx->pads[CSI2RX_PAD_SINK].flags = MEDIA_PAD_FL_SINK; for (i = CSI2RX_PAD_SOURCE_STREAM0; i < CSI2RX_PAD_MAX; i++) csi2rx->pads[i].flags = MEDIA_PAD_FL_SOURCE; + csi2rx->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; ret = media_entity_pads_init(&csi2rx->subdev.entity, CSI2RX_PAD_MAX, csi2rx->pads); From patchwork Mon Jul 31 08:29:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128509 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1901135vqg; Mon, 31 Jul 2023 02:44:51 -0700 (PDT) X-Google-Smtp-Source: APBJJlEMKkgg5hs7YVye8vj5TW6KJ2SAqMio9eQafR2A75t2PAHvmAwkhji+N//9K4Gr94aWDRk7 X-Received: by 2002:aa7:d507:0:b0:522:3a28:feca with SMTP id y7-20020aa7d507000000b005223a28fecamr9367562edq.24.1690796691419; Mon, 31 Jul 2023 02:44:51 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690796691; cv=none; d=google.com; s=arc-20160816; b=T+kp3M/IDGtJ2ZmodBlKF7lkE2KNcfbvaoOVRE77YuR/zVSy08VvzuqqSuCBex0Nnr OFASUsgIpsuDTjB2TGPPUqOJNr3miYKEXDdx4Bfwd/uOcpx7RUJMhXzs4v/tWffwrOsE ndZNGm4uOZcJtzropnPbF5OQrhioWNnXileCEV6BDhGP0SImXndhJH/sHPBDRz4U/KeT ScJvVs74onaI5WonUMAAlCgpIIpxRKs7z9CqBthivf8f6m68T3EwONkphv5P0oJChB0p oSliMZn8/1meaMMl73Ns+iso9RNGCMDIFwRXA7cvXkD6TQAJ9b7Ky7T5rMl79/cmnR5a v6ng== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=TOWtliwygNzBGb/ibCY8FAVxTe5ucabVCXVLqbPzG3A=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=Lq4qgYl+lrbMsddjhh+nEOAaIRm89xpIPfcoHOiVqA69kCwpopBn11fGAKePAem9VE F2C3nx8k19w0GxtoVN5iEDHp51aUUdTEwGxW48GzmLvEgHwrjYWH6NxrmbRvPADiBKng fww6cgAAvs9TRtArmDZ1yIQQpatkrLUNlX0h+qRNLru6RB46nQe1VRnMUmredegNbgM3 frECd29gjGa9sKcgfBRHaKIkvOPsoss65HYo1ccpODhhyuFLH6qnSc/ezpOEuV+sFebe R+ySSS6GX2+R7Xj5UV8Yl4ADJ1nDmubwKW7frraGJRfke3p0y1h0rvxoLAwbbEeP9fVs bLQw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=fIaJGn2u; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Reviewed-by: Tomi Valkeinen --- v7->v8: No change drivers/media/platform/cadence/cdns-csi2rx.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index d82a8938932f..aec33d28a66f 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -463,6 +463,10 @@ static const struct v4l2_subdev_ops csi2rx_subdev_ops = { .pad = &csi2rx_pad_ops, }; +static const struct media_entity_operations csi2rx_media_ops = { + .link_validate = v4l2_subdev_link_validate, +}; + static int csi2rx_async_bound(struct v4l2_async_notifier *notifier, struct v4l2_subdev *s_subdev, struct v4l2_async_connection *asd) @@ -679,6 +683,7 @@ static int csi2rx_probe(struct platform_device *pdev) for (i = CSI2RX_PAD_SOURCE_STREAM0; i < CSI2RX_PAD_MAX; i++) csi2rx->pads[i].flags = MEDIA_PAD_FL_SOURCE; csi2rx->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; + csi2rx->subdev.entity.ops = &csi2rx_media_ops; ret = media_entity_pads_init(&csi2rx->subdev.entity, CSI2RX_PAD_MAX, csi2rx->pads); From patchwork Mon Jul 31 08:29:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128531 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1903605vqg; Mon, 31 Jul 2023 02:52:03 -0700 (PDT) X-Google-Smtp-Source: APBJJlENzieGbsCwBjGbhby8xGNoNYwo9FT5xJHLCqkbeUGVCaWLhCT/3vLVQG+ZhGkS0oQakB4D X-Received: by 2002:a05:6a20:4413:b0:13b:9aa9:447a with SMTP id ce19-20020a056a20441300b0013b9aa9447amr9884008pzb.54.1690797123470; Mon, 31 Jul 2023 02:52:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690797123; cv=none; d=google.com; s=arc-20160816; b=l+dDGV0IEL6PTUL6Mm8guyHDwcxuvuVpzqXrx4c1l25TZI/qCrwI4N5rxaq+cX0zLH xtMdbv994g/V20cjYShpTShqiEF3PZlAE8mH7bt25IZ9teusGGPXURCqjb5km/myb0Or hFAWol0Fhz3tLBffnCNKcnHJuqBjKUt7Ors08yLxbivf3hzs12qbsL1i9ncEDBqCtQx3 FxSlLtReVCpc7H9ZZvuC5DypnmHuOLotl0H3N3gk7Z/9tUEHjdx3Vs+vAbdGkSgYbyRH 27DL4eZYm59C9L+ZeK8uOzfp07DXBdvxKLHqUIRy75UL0AEqKGlRm5aFYTHVDZTGlTQC bHYA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=PDQzrcsyIWoQUkN7yFLXQsVX+NVhWg1yd6L7eS4+MDM=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=OXnVsYuCX16E2EiPcY+IgB0ggjLzZO+8QCGeIEopWKpyT8yFsC2lbBChbrbBlm6km2 J4t3YPry3695Es2PrKl9vekpUCLEffIWmAo3t7bwNj/52akVI/WHK851TR2P8zcGsnui wMOunN2+eA2UYxzPUhHe1YTAfL+Zj8noB8RgBbOw6kCUEO8X8tJc2ydT8WofWPmjxsho EWVoNGs1XEJ7gNijDGA4UwU3P/mmjEo4yw0PeFk9n7Wm03s81RT3Qgt8Hl1384dOoYwj DNRIs8Qu46dn6rXaHM494tN62hKQq/lCWFC3Y9VU3t9pcOb7u70jmVZ7rzowzQ+D5BQX YXmg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=s+nnnv2B; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772929284146516949 X-GMAIL-MSGID: 1772929284146516949 Many CSI-2 sensors (specifically IMX219) send RAW bayer data instead of processed YUV or RGB, so add support for 8-bit and 10-bit bayer formats. Signed-off-by: Jai Luthra Reviewed-by: Tomi Valkeinen --- New in v8 drivers/media/platform/cadence/cdns-csi2rx.c | 32 ++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/media/platform/cadence/cdns-csi2rx.c b/drivers/media/platform/cadence/cdns-csi2rx.c index aec33d28a66f..bac74474841a 100644 --- a/drivers/media/platform/cadence/cdns-csi2rx.c +++ b/drivers/media/platform/cadence/cdns-csi2rx.c @@ -122,6 +122,38 @@ static const struct csi2rx_fmt formats[] = { .code = MEDIA_BUS_FMT_VYUY8_1X16, .bpp = 16, }, + { + .code = MEDIA_BUS_FMT_SBGGR8_1X8, + .bpp = 8, + }, + { + .code = MEDIA_BUS_FMT_SGBRG8_1X8, + .bpp = 8, + }, + { + .code = MEDIA_BUS_FMT_SGRBG8_1X8, + .bpp = 8, + }, + { + .code = MEDIA_BUS_FMT_SRGGB8_1X8, + .bpp = 8, + }, + { + .code = MEDIA_BUS_FMT_SBGGR10_1X10, + .bpp = 10, + }, + { + .code = MEDIA_BUS_FMT_SGBRG10_1X10, + .bpp = 10, + }, + { + .code = MEDIA_BUS_FMT_SGRBG10_1X10, + .bpp = 10, + }, + { + .code = MEDIA_BUS_FMT_SRGGB10_1X10, + .bpp = 10, + }, }; static const struct csi2rx_fmt *csi2rx_get_fmt_by_code(u32 code) From patchwork Mon Jul 31 08:29:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128460 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1882273vqg; Mon, 31 Jul 2023 01:55:15 -0700 (PDT) X-Google-Smtp-Source: APBJJlGaCzpWfEvm2H+1fNb4wdZKSv5UzhXH5bBWO/tXEvq8/CU54fIqR+QPK/pSpJ2e+U34aZ8k X-Received: by 2002:aa7:d652:0:b0:522:b876:9ef5 with SMTP id v18-20020aa7d652000000b00522b8769ef5mr5179417edr.8.1690793715526; Mon, 31 Jul 2023 01:55:15 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690793715; cv=none; d=google.com; s=arc-20160816; b=dvwGfVmz1uzyiKoR6hfkadXOx6hvYdbIqw54haNoR7uRplK+cCexRGxD59DyrpU1Zp ZSub7COcHDgbPijOH6SzSaEA/GTwqVr89wjsyYcR+ff04/oPYKBP+zjXmf5hHft2uI1o 4EyCTSr1/Cs/dT3M01ViX0hNeTyeZnacOnvgck5dqvSyMHXKw89aXo0mvbinX+drr471 qyp1VHjTAaI0YprA6iXygl3aOsRiy0bmhmp5tAwg7F3ial86wsVga71Hw+khQbFYxsTq rdpg9ALl7jjb709Jo8uTAC4a2gkL3WQnLxXwKsnaojMjA+Zn3ZtmgMCaKIu7DaJACpit eXwQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=o9JmDGlCqf7iYc+hFKgavJ+cIgy8OWygrvm/7RwaCNo=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=dOQSvvFvCK1++HrsuKa6rdSoIwXiWYjofSEKvebT8evmHdSaazCpxDS6RFVZPt3G05 a9CVTHtyuj0M7yffV8/gGcTLKpwcn7AykL2n0wKSQDooAVsFsCnbq0PbTg8G+gMZHQ2Y z4+RJAPuQXdbSDpm/5pO6D+iT3ruCHCBaASpBtqRkQsXXjCTXrr4hnDqNa5JuKZHIuMe ZLIEsFvgsaYqtiHG2vWQ3t1fHdDt2k8VUzeHu69LTIkxvUC1SblfCKsR3pDHifTkiQyd 3xs0e1cVNlhB6Wv/ioZNmi/X6NR8HEW1s1wpCfIBzcMWsDelNabRQqVqfoWMX33K25cH uTGA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=PR3Igdmh; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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a=openpgp; fpr=4DE0D818E5D575E8D45AAFC543DE91F9249A7145 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1772925710874414662 X-GMAIL-MSGID: 1772925710874414662 From: Pratyush Yadav TI's J721E uses the Cadence CSI2RX and DPHY peripherals to facilitate capture over a CSI-2 bus. The TI CSI2RX platform driver glues all the parts together. Signed-off-by: Pratyush Yadav Signed-off-by: Jai Luthra Reviewed-by: Laurent Pinchart Reviewed-by: Rob Herring --- v7->v8: - Drop "Device Tree Bindings" from title - Rename "Wrapper" to "Shim" in title as that is the name referred in the TRM and other places - Update maintainer to myself - Drop items from compatible as only a single element is present - Rename compatible to "ti,j721e-csi2rx-shim" to distinguish from the SoC-specific CSI2RX bridge compatible .../bindings/media/ti,j721e-csi2rx-shim.yaml | 100 +++++++++++++++++++++ 1 file changed, 100 insertions(+) diff --git a/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml b/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml new file mode 100644 index 000000000000..f762fdc05e4d --- /dev/null +++ b/Documentation/devicetree/bindings/media/ti,j721e-csi2rx-shim.yaml @@ -0,0 +1,100 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/ti,j721e-csi2rx-shim.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI J721E CSI2RX Shim + +description: | + The TI J721E CSI2RX Shim is a wrapper around Cadence CSI2RX bridge that + enables sending captured frames to memory over PSI-L DMA. In the J721E + Technical Reference Manual (SPRUIL1B) it is referred to as "SHIM" under the + CSI_RX_IF section. + +maintainers: + - Jai Luthra + +properties: + compatible: + const: ti,j721e-csi2rx-shim + + dmas: + maxItems: 1 + + dma-names: + items: + - const: rx0 + + reg: + maxItems: 1 + + power-domains: + maxItems: 1 + + ranges: true + + "#address-cells": true + + "#size-cells": true + +patternProperties: + "^csi-bridge@": + type: object + description: CSI2 bridge node. + $ref: cdns,csi2rx.yaml# + +required: + - compatible + - reg + - dmas + - dma-names + - power-domains + - ranges + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +examples: + - | + #include + + ti_csi2rx0: ticsi2rx@4500000 { + compatible = "ti,j721e-csi2rx-shim"; + dmas = <&main_udmap 0x4940>; + dma-names = "rx0"; + reg = <0x4500000 0x1000>; + power-domains = <&k3_pds 26 TI_SCI_PD_EXCLUSIVE>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + cdns_csi2rx: csi-bridge@4504000 { + compatible = "ti,j721e-csi2rx", "cdns,csi2rx"; + reg = <0x4504000 0x1000>; + clocks = <&k3_clks 26 2>, <&k3_clks 26 0>, <&k3_clks 26 2>, + <&k3_clks 26 2>, <&k3_clks 26 3>, <&k3_clks 26 3>; + clock-names = "sys_clk", "p_clk", "pixel_if0_clk", + "pixel_if1_clk", "pixel_if2_clk", "pixel_if3_clk"; + phys = <&dphy0>; + phy-names = "dphy"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + csi2_0: port@0 { + + reg = <0>; + + csi2rx0_in_sensor: endpoint { + remote-endpoint = <&csi2_cam0>; + bus-type = <4>; /* CSI2 DPHY. */ + clock-lanes = <0>; + data-lanes = <1 2>; + }; + }; + }; + }; + }; From patchwork Mon Jul 31 08:29:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jai Luthra X-Patchwork-Id: 128543 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:918b:0:b0:3e4:2afc:c1 with SMTP id s11csp1908698vqg; Mon, 31 Jul 2023 03:04:04 -0700 (PDT) X-Google-Smtp-Source: APBJJlGvrhuiJCjZGLrk7x3Y+udGk3T4Y2uqh3nHaRQmxRez687IMDKkV+YX0m+H/a/21eveLANi X-Received: by 2002:a05:6808:124e:b0:3a5:ba3f:d3e3 with SMTP id o14-20020a056808124e00b003a5ba3fd3e3mr8746424oiv.59.1690797843751; Mon, 31 Jul 2023 03:04:03 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1690797843; cv=none; d=google.com; s=arc-20160816; b=ZYZuIPiiZAz65Qh02UbkLQATilo4OVXNTFzRt2cvoEUfYW1rq+QcBLYKT3rH46rJHh 4C2h9IU5toqF9f/85jvNIlUbetua5N9aQwZ3PAw1ymgWPM1gEW9MvnlBHZTIpB9ENcEi 0b0c69I6z3iIMzAKf0u829LZznUPIZiNc6X1BqXQxO6saZlnAsCAJ4Qj+N802SekBrQG KL3lIYohd7Hg0joyoz9BzT03ENV0n7kdlEZbPiqkL48xxbxfNkeGvFuUoPfcxGX9KeW/ TOUmdOEJubJxRKHU9dPe8DjXPjq7w9cpRaOwm0pStN16EbaAmncYzg+XtNLJWG9OzebL 4kMw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=QxYi9VbV0kPNwyRhIJV5TbqhK5IqS+K4RkyW5r4wgZI=; fh=V3yzwYxt4PgbnoX3kc2m6CeiASFvGUTpa1ANjIQvoCg=; b=b2iVf8RkRUYPsl7fP/lySliFiQVDa+gzc0Cox9bqMTv+QHEhXVn5OYpMl32K+F5MkA Ild1wTEhpx9At73DEXj80zJiA8L5iHXk+EKJzqwYnONXETcVKQjdzxP0LIjnVFB2iXTX 2vILAfIGglDxBw13s0w4w15/3Xt8K/7Yl2JsVmR3L03whKirPXXscV0YptcH42ajtGRA 7zlwywPposrBVJgarqcIK7ygdCA1lxFtRIefpnP7kvzSXf21ksTgNWiexDaNvMwYjU0w 4oqMqLDDAmEgHjjEdgPLXnkUFYW7jET/lVy30CX2gKfOz6q8qfWuM5PHaj9+zvM10D/n QWLw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=BCQg9wsy; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=NONE dis=NONE) header.from=ti.com Received: from out1.vger.email (out1.vger.email. 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The Cadence CSI2RX IP acts as a bridge between the TI specific parts and the CSI-2 protocol parts. TI then has a wrapper on top of this bridge called the SHIM layer. It takes in data from stream 0, repacks it, and sends it to memory over PSI-L DMA. This driver acts as the "front end" to V4L2 client applications. It implements the required ioctls and buffer operations, passes the necessary calls on to the bridge, programs the SHIM layer, and performs DMA via the dmaengine API to finally return the data to a buffer supplied by the application. Signed-off-by: Pratyush Yadav Co-authored-by: Vaishnav Achath Signed-off-by: Vaishnav Achath Co-authored-by: Jai Luthra Signed-off-by: Jai Luthra --- v7->v8: - Move after dt-bindings to keep the series bisectable - Rename compatible to "ti,j721e-csi2rx-shim" to distinguish from the SoC-specific CSI2RX bridge compatible - Make myself the Maintainer - Support RAW8 and RAW10 formats, and setting the pixel-unwrap size on SHIM (RAW10 is stored in 16-bit containers, while RAW8 in 8-bit containers) - Fix enum_fmt_vid_cap() to respect CAP_IO_MC and only list pixelformats matching the mbus formats set on the subdev. - Fix enum_framesizes() to stop enumerating more than a single framesize (reject non-zero fsize->index) - Simplify notifier bound fucntion to use v4l2_create_fwnode_links_to_pad() and inline the video_register() method - Add support for draining the DMA with an extra buffer, to get rid of stale data in the pipeline on stream stop (or when frames start getting dropped due to load) - Queue all available buffers to DMAEngine in the callback, also use a separate "submitted" queue to track all buffers submitted to DMA - Use video_device_pipeline_start() instead of media_pipeline_start() - Drop support for VB_READ - Print issues in link validation as DEBUG instead of ERROR - s/async_subdev/async_connection MAINTAINERS | 7 + drivers/media/platform/ti/Kconfig | 12 + drivers/media/platform/ti/Makefile | 1 + drivers/media/platform/ti/j721e-csi2rx/Makefile | 2 + .../media/platform/ti/j721e-csi2rx/j721e-csi2rx.c | 1127 ++++++++++++++++++++ 5 files changed, 1149 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index d7b867c57920..1c2d75c30ce7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -21445,6 +21445,13 @@ F: Documentation/devicetree/bindings/media/i2c/ti,ds90* F: drivers/media/i2c/ds90* F: include/media/i2c/ds90* +TI J721E CSI2RX DRIVER +M: Jai Luthra +L: linux-media@vger.kernel.org +S: Maintained +F: Documentation/devicetree/bindings/media/ti,j721e-csi2rx.yaml +F: drivers/media/platform/ti/j721e-csi2rx/ + TI KEYSTONE MULTICORE NAVIGATOR DRIVERS M: Nishanth Menon M: Santosh Shilimkar diff --git a/drivers/media/platform/ti/Kconfig b/drivers/media/platform/ti/Kconfig index e1ab56c3be1f..42c908f6e1ae 100644 --- a/drivers/media/platform/ti/Kconfig +++ b/drivers/media/platform/ti/Kconfig @@ -63,6 +63,18 @@ config VIDEO_TI_VPE_DEBUG help Enable debug messages on VPE driver. +config VIDEO_TI_J721E_CSI2RX + tristate "TI J721E CSI2RX wrapper layer driver" + depends on VIDEO_DEV && VIDEO_V4L2_SUBDEV_API + depends on MEDIA_SUPPORT && MEDIA_CONTROLLER + depends on PHY_CADENCE_DPHY_RX && VIDEO_CADENCE_CSI2RX + depends on ARCH_K3 || COMPILE_TEST + select VIDEOBUF2_DMA_CONTIG + select V4L2_FWNODE + help + Support for TI CSI2RX wrapper layer. This just enables the wrapper driver. + The Cadence CSI2RX bridge driver needs to be enabled separately. + source "drivers/media/platform/ti/am437x/Kconfig" source "drivers/media/platform/ti/davinci/Kconfig" source "drivers/media/platform/ti/omap/Kconfig" diff --git a/drivers/media/platform/ti/Makefile b/drivers/media/platform/ti/Makefile index 98c5fe5c40d6..8a2f74c9380e 100644 --- a/drivers/media/platform/ti/Makefile +++ b/drivers/media/platform/ti/Makefile @@ -3,5 +3,6 @@ obj-y += am437x/ obj-y += cal/ obj-y += vpe/ obj-y += davinci/ +obj-y += j721e-csi2rx/ obj-y += omap/ obj-y += omap3isp/ diff --git a/drivers/media/platform/ti/j721e-csi2rx/Makefile b/drivers/media/platform/ti/j721e-csi2rx/Makefile new file mode 100644 index 000000000000..377afc1d6280 --- /dev/null +++ b/drivers/media/platform/ti/j721e-csi2rx/Makefile @@ -0,0 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_VIDEO_TI_J721E_CSI2RX) += j721e-csi2rx.o diff --git a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c new file mode 100644 index 000000000000..29f1879cfc25 --- /dev/null +++ b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c @@ -0,0 +1,1127 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * TI CSI2RX Shim Wrapper Driver + * + * Copyright (C) 2021 Texas Instruments Incorporated - https://www.ti.com/ + * + * Author: Pratyush Yadav + */ + +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include + +#define TI_CSI2RX_MODULE_NAME "j721e-csi2rx" + +#define SHIM_CNTL 0x10 +#define SHIM_CNTL_PIX_RST BIT(0) + +#define SHIM_DMACNTX 0x20 +#define SHIM_DMACNTX_EN BIT(31) +#define SHIM_DMACNTX_YUV422 GENMASK(27, 26) +#define SHIM_DMACNTX_SIZE GENMASK(21, 20) +#define SHIM_DMACNTX_FMT GENMASK(5, 0) +#define SHIM_DMACNTX_UYVY 0 +#define SHIM_DMACNTX_VYUY 1 +#define SHIM_DMACNTX_YUYV 2 +#define SHIM_DMACNTX_YVYU 3 +#define SHIM_DMACNTX_SIZE_8 0 +#define SHIM_DMACNTX_SIZE_16 1 +#define SHIM_DMACNTX_SIZE_32 2 + +#define SHIM_PSI_CFG0 0x24 +#define SHIM_PSI_CFG0_SRC_TAG GENMASK(15, 0) +#define SHIM_PSI_CFG0_DST_TAG GENMASK(31, 16) + +#define PSIL_WORD_SIZE_BYTES 16 +/* + * There are no hard limits on the width or height. The DMA engine can handle + * all sizes. The max width and height are arbitrary numbers for this driver. + * Use 16K * 16K as the arbitrary limit. It is large enough that it is unlikely + * the limit will be hit in practice. + */ +#define MAX_WIDTH_BYTES SZ_16K +#define MAX_HEIGHT_LINES SZ_16K + +#define DRAIN_TIMEOUT_MS 50 + +struct ti_csi2rx_fmt { + u32 fourcc; /* Four character code. */ + u32 code; /* Mbus code. */ + u32 csi_dt; /* CSI Data type. */ + u8 bpp; /* Bits per pixel. */ + u8 size; /* Data size shift when unpacking. */ +}; + +struct ti_csi2rx_buffer { + /* Common v4l2 buffer. Must be first. */ + struct vb2_v4l2_buffer vb; + struct list_head list; + struct ti_csi2rx_dev *csi; +}; + +enum ti_csi2rx_dma_state { + TI_CSI2RX_DMA_STOPPED, /* Streaming not started yet. */ + TI_CSI2RX_DMA_IDLE, /* Streaming but no pending DMA operation. */ + TI_CSI2RX_DMA_ACTIVE, /* Streaming and pending DMA operation. */ +}; + +struct ti_csi2rx_dma { + /* Protects all fields in this struct. */ + spinlock_t lock; + struct dma_chan *chan; + /* Buffers queued to the driver, waiting to be processed by DMA. */ + struct list_head queue; + enum ti_csi2rx_dma_state state; + /* + * Queue of buffers submitted to DMA engine. + */ + struct list_head submitted; +}; + +struct ti_csi2rx_dev { + struct device *dev; + void __iomem *shim; + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct media_device mdev; + struct media_pipeline pipe; + struct media_pad pad; + struct v4l2_async_notifier notifier; + struct v4l2_subdev *subdev; + struct vb2_queue vidq; + struct mutex mutex; /* To serialize ioctls. */ + struct v4l2_format v_fmt; + struct ti_csi2rx_dma dma; + u32 sequence; +}; + +static const struct ti_csi2rx_fmt formats[] = { + { + .fourcc = V4L2_PIX_FMT_YUYV, + .code = MEDIA_BUS_FMT_YUYV8_1X16, + .csi_dt = MIPI_CSI2_DT_YUV422_8B, + .bpp = 16, + .size = SHIM_DMACNTX_SIZE_8, + }, { + .fourcc = V4L2_PIX_FMT_UYVY, + .code = MEDIA_BUS_FMT_UYVY8_1X16, + .csi_dt = MIPI_CSI2_DT_YUV422_8B, + .bpp = 16, + .size = SHIM_DMACNTX_SIZE_8, + }, { + .fourcc = V4L2_PIX_FMT_YVYU, + .code = MEDIA_BUS_FMT_YVYU8_1X16, + .csi_dt = MIPI_CSI2_DT_YUV422_8B, + .bpp = 16, + .size = SHIM_DMACNTX_SIZE_8, + }, { + .fourcc = V4L2_PIX_FMT_VYUY, + .code = MEDIA_BUS_FMT_VYUY8_1X16, + .csi_dt = MIPI_CSI2_DT_YUV422_8B, + .bpp = 16, + .size = SHIM_DMACNTX_SIZE_8, + }, { + .fourcc = V4L2_PIX_FMT_SBGGR8, + .code = MEDIA_BUS_FMT_SBGGR8_1X8, + .csi_dt = MIPI_CSI2_DT_RAW8, + .bpp = 8, + .size = SHIM_DMACNTX_SIZE_8, + }, { + .fourcc = V4L2_PIX_FMT_SGBRG8, + .code = MEDIA_BUS_FMT_SGBRG8_1X8, + .csi_dt = MIPI_CSI2_DT_RAW8, + .bpp = 8, + .size = SHIM_DMACNTX_SIZE_8, + }, { + .fourcc = V4L2_PIX_FMT_SGRBG8, + .code = MEDIA_BUS_FMT_SGRBG8_1X8, + .csi_dt = MIPI_CSI2_DT_RAW8, + .bpp = 8, + .size = SHIM_DMACNTX_SIZE_8, + }, { + .fourcc = V4L2_PIX_FMT_SRGGB8, + .code = MEDIA_BUS_FMT_SRGGB8_1X8, + .csi_dt = MIPI_CSI2_DT_RAW8, + .bpp = 8, + .size = SHIM_DMACNTX_SIZE_8, + }, { + .fourcc = V4L2_PIX_FMT_SBGGR10, + .code = MEDIA_BUS_FMT_SBGGR10_1X10, + .csi_dt = MIPI_CSI2_DT_RAW10, + .bpp = 16, + .size = SHIM_DMACNTX_SIZE_16, + }, { + .fourcc = V4L2_PIX_FMT_SGBRG10, + .code = MEDIA_BUS_FMT_SGBRG10_1X10, + .csi_dt = MIPI_CSI2_DT_RAW10, + .bpp = 16, + .size = SHIM_DMACNTX_SIZE_16, + }, { + .fourcc = V4L2_PIX_FMT_SGRBG10, + .code = MEDIA_BUS_FMT_SGRBG10_1X10, + .csi_dt = MIPI_CSI2_DT_RAW10, + .bpp = 16, + .size = SHIM_DMACNTX_SIZE_16, + }, { + .fourcc = V4L2_PIX_FMT_SRGGB10, + .code = MEDIA_BUS_FMT_SRGGB10_1X10, + .csi_dt = MIPI_CSI2_DT_RAW10, + .bpp = 16, + .size = SHIM_DMACNTX_SIZE_16, + }, + + /* More formats can be supported but they are not listed for now. */ +}; + +static const unsigned int num_formats = ARRAY_SIZE(formats); + +/* Forward declaration needed by ti_csi2rx_dma_callback. */ +static int ti_csi2rx_start_dma(struct ti_csi2rx_dev *csi, + struct ti_csi2rx_buffer *buf); + +static const struct ti_csi2rx_fmt *find_format_by_pix(u32 pixelformat) +{ + unsigned int i; + + for (i = 0; i < num_formats; i++) { + if (formats[i].fourcc == pixelformat) + return &formats[i]; + } + + return NULL; +} + +static const struct ti_csi2rx_fmt *find_format_by_code(u32 code) +{ + unsigned int i; + + for (i = 0; i < num_formats; i++) { + if (formats[i].code == code) + return &formats[i]; + } + + return NULL; +} + +static void ti_csi2rx_fill_fmt(const struct ti_csi2rx_fmt *csi_fmt, + struct v4l2_format *v4l2_fmt) +{ + struct v4l2_pix_format *pix = &v4l2_fmt->fmt.pix; + unsigned int pixels_in_word; + u8 bpp = csi_fmt->bpp; + u32 bpl; + + pixels_in_word = PSIL_WORD_SIZE_BYTES * 8 / bpp; + + pix->width = clamp_t(unsigned int, pix->width, + pixels_in_word, + MAX_WIDTH_BYTES * 8 / bpp); + pix->width = rounddown(pix->width, pixels_in_word); + + pix->height = clamp_t(unsigned int, pix->height, 1, MAX_HEIGHT_LINES); + + v4l2_fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + pix->pixelformat = csi_fmt->fourcc; + pix->colorspace = V4L2_COLORSPACE_SRGB; + pix->sizeimage = pix->height * pix->width * (bpp / 8); + + bpl = (pix->width * ALIGN(bpp, 8)) >> 3; + pix->bytesperline = ALIGN(bpl, 16); +} + +static int ti_csi2rx_querycap(struct file *file, void *priv, + struct v4l2_capability *cap) +{ + strscpy(cap->driver, TI_CSI2RX_MODULE_NAME, sizeof(cap->driver)); + strscpy(cap->card, TI_CSI2RX_MODULE_NAME, sizeof(cap->card)); + + return 0; +} + +static int ti_csi2rx_enum_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_fmtdesc *f) +{ + const struct ti_csi2rx_fmt *fmt = NULL; + + if (f->mbus_code) { + if (f->index > 0) + return -EINVAL; + + fmt = find_format_by_code(f->mbus_code); + } else { + if (f->index >= num_formats) + return -EINVAL; + + fmt = &formats[f->index]; + } + + if (!fmt) + return -EINVAL; + + f->pixelformat = fmt->fourcc; + memset(f->reserved, 0, sizeof(f->reserved)); + f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + + return 0; +} + +static int ti_csi2rx_g_fmt_vid_cap(struct file *file, void *prov, + struct v4l2_format *f) +{ + struct ti_csi2rx_dev *csi = video_drvdata(file); + + *f = csi->v_fmt; + + return 0; +} + +static int ti_csi2rx_try_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + const struct ti_csi2rx_fmt *fmt; + + /* + * Default to the first format if the requested pixel format code isn't + * supported. + */ + fmt = find_format_by_pix(f->fmt.pix.pixelformat); + if (!fmt) + fmt = &formats[0]; + + if (f->fmt.pix.field == V4L2_FIELD_ANY) + f->fmt.pix.field = V4L2_FIELD_NONE; + + if (f->fmt.pix.field != V4L2_FIELD_NONE) + /* Interlaced formats are not supported. */ + f->fmt.pix.field = V4L2_FIELD_NONE; + + ti_csi2rx_fill_fmt(fmt, f); + + return 0; +} + +static int ti_csi2rx_s_fmt_vid_cap(struct file *file, void *priv, + struct v4l2_format *f) +{ + struct ti_csi2rx_dev *csi = video_drvdata(file); + struct vb2_queue *q = &csi->vidq; + int ret; + + if (vb2_is_busy(q)) + return -EBUSY; + + ret = ti_csi2rx_try_fmt_vid_cap(file, priv, f); + if (ret < 0) + return ret; + + csi->v_fmt = *f; + + return 0; +} + +static int ti_csi2rx_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + const struct ti_csi2rx_fmt *fmt; + unsigned int pixels_in_word; + u8 bpp; + + fmt = find_format_by_pix(fsize->pixel_format); + if (!fmt || fsize->index != 0) + return -EINVAL; + + bpp = ALIGN(fmt->bpp, 8); + + /* + * Number of pixels in one PSI-L word. The transfer happens in multiples + * of PSI-L word sizes. + */ + pixels_in_word = PSIL_WORD_SIZE_BYTES * 8 / bpp; + + fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE; + fsize->stepwise.min_width = pixels_in_word; + fsize->stepwise.max_width = rounddown(MAX_WIDTH_BYTES * 8 / bpp, + pixels_in_word); + fsize->stepwise.step_width = pixels_in_word; + fsize->stepwise.min_height = 1; + fsize->stepwise.max_height = MAX_HEIGHT_LINES; + fsize->stepwise.step_height = 1; + + return 0; +} + +static const struct v4l2_ioctl_ops csi_ioctl_ops = { + .vidioc_querycap = ti_csi2rx_querycap, + .vidioc_enum_fmt_vid_cap = ti_csi2rx_enum_fmt_vid_cap, + .vidioc_try_fmt_vid_cap = ti_csi2rx_try_fmt_vid_cap, + .vidioc_g_fmt_vid_cap = ti_csi2rx_g_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = ti_csi2rx_s_fmt_vid_cap, + .vidioc_enum_framesizes = ti_csi2rx_enum_framesizes, + .vidioc_reqbufs = vb2_ioctl_reqbufs, + .vidioc_create_bufs = vb2_ioctl_create_bufs, + .vidioc_prepare_buf = vb2_ioctl_prepare_buf, + .vidioc_querybuf = vb2_ioctl_querybuf, + .vidioc_qbuf = vb2_ioctl_qbuf, + .vidioc_dqbuf = vb2_ioctl_dqbuf, + .vidioc_expbuf = vb2_ioctl_expbuf, + .vidioc_streamon = vb2_ioctl_streamon, + .vidioc_streamoff = vb2_ioctl_streamoff, +}; + +static const struct v4l2_file_operations csi_fops = { + .owner = THIS_MODULE, + .open = v4l2_fh_open, + .release = vb2_fop_release, + .read = vb2_fop_read, + .poll = vb2_fop_poll, + .unlocked_ioctl = video_ioctl2, + .mmap = vb2_fop_mmap, +}; + +static int csi_async_notifier_bound(struct v4l2_async_notifier *notifier, + struct v4l2_subdev *subdev, + struct v4l2_async_connection *asc) +{ + struct ti_csi2rx_dev *csi = dev_get_drvdata(notifier->v4l2_dev->dev); + + csi->subdev = subdev; + + return 0; +} + +static int csi_async_notifier_complete(struct v4l2_async_notifier *notifier) +{ + struct ti_csi2rx_dev *csi = dev_get_drvdata(notifier->v4l2_dev->dev); + struct video_device *vdev = &csi->vdev; + int ret; + + ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1); + if (ret) + return ret; + + ret = v4l2_create_fwnode_links_to_pad(csi->subdev, &csi->pad, + MEDIA_LNK_FL_IMMUTABLE | MEDIA_LNK_FL_ENABLED); + + if (ret) { + video_unregister_device(vdev); + return ret; + } + + return v4l2_device_register_subdev_nodes(&csi->v4l2_dev); +} + +static const struct v4l2_async_notifier_operations csi_async_notifier_ops = { + .bound = csi_async_notifier_bound, + .complete = csi_async_notifier_complete, +}; + +static int ti_csi2rx_init_subdev(struct ti_csi2rx_dev *csi) +{ + struct fwnode_handle *fwnode; + struct v4l2_async_connection *asc; + struct device_node *node; + int ret; + + node = of_get_child_by_name(csi->dev->of_node, "csi-bridge"); + if (!node) + return -EINVAL; + + fwnode = of_fwnode_handle(node); + if (!fwnode) { + of_node_put(node); + return -EINVAL; + } + + v4l2_async_nf_init(&csi->notifier, &csi->v4l2_dev); + csi->notifier.ops = &csi_async_notifier_ops; + + asc = v4l2_async_nf_add_fwnode(&csi->notifier, fwnode, + struct v4l2_async_connection); + of_node_put(node); + if (IS_ERR(asc)) { + v4l2_async_nf_cleanup(&csi->notifier); + return PTR_ERR(asc); + } + + ret = v4l2_async_nf_register(&csi->notifier); + if (ret) { + v4l2_async_nf_cleanup(&csi->notifier); + return ret; + } + + return 0; +} + +static void ti_csi2rx_setup_shim(struct ti_csi2rx_dev *csi) +{ + const struct ti_csi2rx_fmt *fmt; + unsigned int reg; + + fmt = find_format_by_pix(csi->v_fmt.fmt.pix.pixelformat); + if (!fmt) { + dev_err(csi->dev, "Unknown format\n"); + return; + } + + /* De-assert the pixel interface reset. */ + reg = SHIM_CNTL_PIX_RST; + writel(reg, csi->shim + SHIM_CNTL); + + reg = SHIM_DMACNTX_EN; + reg |= FIELD_PREP(SHIM_DMACNTX_FMT, fmt->csi_dt); + + /* + * Using the values from the documentation gives incorrect ordering for + * the luma and chroma components. In practice, the "reverse" format + * gives the correct image. So for example, if the image is in UYVY, the + * reverse would be YVYU. + */ + switch (fmt->fourcc) { + case V4L2_PIX_FMT_UYVY: + reg |= FIELD_PREP(SHIM_DMACNTX_YUV422, + SHIM_DMACNTX_YVYU); + break; + case V4L2_PIX_FMT_VYUY: + reg |= FIELD_PREP(SHIM_DMACNTX_YUV422, + SHIM_DMACNTX_YUYV); + break; + case V4L2_PIX_FMT_YUYV: + reg |= FIELD_PREP(SHIM_DMACNTX_YUV422, + SHIM_DMACNTX_VYUY); + break; + case V4L2_PIX_FMT_YVYU: + reg |= FIELD_PREP(SHIM_DMACNTX_YUV422, + SHIM_DMACNTX_UYVY); + break; + default: + /* Ignore if not YUV 4:2:2 */ + break; + } + + reg |= FIELD_PREP(SHIM_DMACNTX_SIZE, fmt->size); + + writel(reg, csi->shim + SHIM_DMACNTX); + + reg = FIELD_PREP(SHIM_PSI_CFG0_SRC_TAG, 0) | + FIELD_PREP(SHIM_PSI_CFG0_DST_TAG, 0); + writel(reg, csi->shim + SHIM_PSI_CFG0); +} + +static void ti_csi2rx_drain_callback(void *param) +{ + struct completion *drain_complete = param; + + complete(drain_complete); +} + +static int ti_csi2rx_drain_dma(struct ti_csi2rx_dev *csi) +{ + struct dma_async_tx_descriptor *desc; + struct device *dev = csi->dma.chan->device->dev; + struct completion drain_complete; + void *buf; + size_t len = csi->v_fmt.fmt.pix.sizeimage; + dma_addr_t addr; + dma_cookie_t cookie; + int ret; + + init_completion(&drain_complete); + + buf = dma_alloc_coherent(dev, len, &addr, GFP_KERNEL | GFP_ATOMIC); + if (!buf) + return -ENOMEM; + + desc = dmaengine_prep_slave_single(csi->dma.chan, addr, len, + DMA_DEV_TO_MEM, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + if (!desc) { + ret = -EIO; + goto out; + } + + desc->callback = ti_csi2rx_drain_callback; + desc->callback_param = &drain_complete; + + cookie = dmaengine_submit(desc); + ret = dma_submit_error(cookie); + if (ret) + goto out; + + dma_async_issue_pending(csi->dma.chan); + + if (!wait_for_completion_timeout(&drain_complete, + msecs_to_jiffies(DRAIN_TIMEOUT_MS))) { + dmaengine_terminate_sync(csi->dma.chan); + ret = -ETIMEDOUT; + goto out; + } +out: + dma_free_coherent(dev, len, buf, addr); + return ret; +} + +static void ti_csi2rx_dma_callback(void *param) +{ + struct ti_csi2rx_buffer *buf = param; + struct ti_csi2rx_dev *csi = buf->csi; + struct ti_csi2rx_dma *dma = &csi->dma; + unsigned long flags; + + /* + * TODO: Derive the sequence number from the CSI2RX frame number + * hardware monitor registers. + */ + buf->vb.vb2_buf.timestamp = ktime_get_ns(); + buf->vb.sequence = csi->sequence++; + + spin_lock_irqsave(&dma->lock, flags); + + WARN_ON(!list_is_first(&buf->list, &dma->submitted)); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_DONE); + list_del(&buf->list); + + /* If there are more buffers to process then start their transfer. */ + while (!list_empty(&dma->queue)) { + buf = list_entry(dma->queue.next, struct ti_csi2rx_buffer, list); + + if (ti_csi2rx_start_dma(csi, buf)) { + dev_err(csi->dev, "Failed to queue the next buffer for DMA\n"); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + } else { + list_move_tail(&buf->list, &dma->submitted); + } + } + + if (list_empty(&dma->submitted)) + dma->state = TI_CSI2RX_DMA_IDLE; + + spin_unlock_irqrestore(&dma->lock, flags); +} + +static int ti_csi2rx_start_dma(struct ti_csi2rx_dev *csi, + struct ti_csi2rx_buffer *buf) +{ + unsigned long addr; + struct dma_async_tx_descriptor *desc; + size_t len = csi->v_fmt.fmt.pix.sizeimage; + dma_cookie_t cookie; + int ret = 0; + + addr = vb2_dma_contig_plane_dma_addr(&buf->vb.vb2_buf, 0); + desc = dmaengine_prep_slave_single(csi->dma.chan, addr, len, + DMA_DEV_TO_MEM, + DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + if (!desc) + return -EIO; + + desc->callback = ti_csi2rx_dma_callback; + desc->callback_param = buf; + + cookie = dmaengine_submit(desc); + ret = dma_submit_error(cookie); + if (ret) + return ret; + + dma_async_issue_pending(csi->dma.chan); + + return 0; +} + +static void ti_csi2rx_cleanup_buffers(struct ti_csi2rx_dev *csi, + enum vb2_buffer_state buf_state) +{ + struct ti_csi2rx_dma *dma = &csi->dma; + struct ti_csi2rx_buffer *buf, *tmp; + enum ti_csi2rx_dma_state state; + unsigned long flags; + int ret; + + spin_lock_irqsave(&dma->lock, flags); + state = csi->dma.state; + dma->state = TI_CSI2RX_DMA_STOPPED; + spin_unlock_irqrestore(&dma->lock, flags); + + if (state != TI_CSI2RX_DMA_STOPPED) { + ret = ti_csi2rx_drain_dma(csi); + if (ret) + dev_dbg(csi->dev, + "Failed to drain DMA. Next frame might be bogus\n"); + } + ret = dmaengine_terminate_sync(csi->dma.chan); + if (ret) + dev_err(csi->dev, "Failed to stop DMA: %d\n", ret); + + spin_lock_irqsave(&dma->lock, flags); + list_for_each_entry_safe(buf, tmp, &csi->dma.queue, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, buf_state); + } + list_for_each_entry_safe(buf, tmp, &csi->dma.submitted, list) { + list_del(&buf->list); + vb2_buffer_done(&buf->vb.vb2_buf, buf_state); + } + spin_unlock_irqrestore(&dma->lock, flags); +} + +static int ti_csi2rx_queue_setup(struct vb2_queue *q, unsigned int *nbuffers, + unsigned int *nplanes, unsigned int sizes[], + struct device *alloc_devs[]) +{ + struct ti_csi2rx_dev *csi = vb2_get_drv_priv(q); + unsigned int size = csi->v_fmt.fmt.pix.sizeimage; + + if (*nplanes) { + if (sizes[0] < size) + return -EINVAL; + size = sizes[0]; + } + + *nplanes = 1; + sizes[0] = size; + + return 0; +} + +static int ti_csi2rx_buffer_prepare(struct vb2_buffer *vb) +{ + struct ti_csi2rx_dev *csi = vb2_get_drv_priv(vb->vb2_queue); + unsigned long size = csi->v_fmt.fmt.pix.sizeimage; + + if (vb2_plane_size(vb, 0) < size) { + dev_err(csi->dev, "Data will not fit into plane\n"); + return -EINVAL; + } + + vb2_set_plane_payload(vb, 0, size); + return 0; +} + +static void ti_csi2rx_buffer_queue(struct vb2_buffer *vb) +{ + struct ti_csi2rx_dev *csi = vb2_get_drv_priv(vb->vb2_queue); + struct ti_csi2rx_buffer *buf; + struct ti_csi2rx_dma *dma = &csi->dma; + bool restart_dma = false; + unsigned long flags = 0; + int ret; + + buf = container_of(vb, struct ti_csi2rx_buffer, vb.vb2_buf); + buf->csi = csi; + + spin_lock_irqsave(&dma->lock, flags); + /* + * Usually the DMA callback takes care of queueing the pending buffers. + * But if DMA has stalled due to lack of buffers, restart it now. + */ + if (dma->state == TI_CSI2RX_DMA_IDLE) { + /* + * Do not restart DMA with the lock held because + * ti_csi2rx_drain_dma() might block when allocating a buffer. + * There won't be a race on queueing DMA anyway since the + * callback is not being fired. + */ + restart_dma = true; + dma->state = TI_CSI2RX_DMA_ACTIVE; + } else { + list_add_tail(&buf->list, &dma->queue); + } + spin_unlock_irqrestore(&dma->lock, flags); + + if (restart_dma) { + /* + * Once frames start dropping, some data gets stuck in the DMA + * pipeline somewhere. So the first DMA transfer after frame + * drops gives a partial frame. This is obviously not useful to + * the application and will only confuse it. Issue a DMA + * transaction to drain that up. + */ + ret = ti_csi2rx_drain_dma(csi); + if (ret) + dev_warn(csi->dev, + "Failed to drain DMA. Next frame might be bogus\n"); + + ret = ti_csi2rx_start_dma(csi, buf); + if (ret) { + dev_err(csi->dev, "Failed to start DMA: %d\n", ret); + spin_lock_irqsave(&dma->lock, flags); + vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR); + dma->state = TI_CSI2RX_DMA_IDLE; + spin_unlock_irqrestore(&dma->lock, flags); + } else { + spin_lock_irqsave(&dma->lock, flags); + list_add_tail(&buf->list, &dma->submitted); + spin_unlock_irqrestore(&dma->lock, flags); + } + } +} + +static int ti_csi2rx_start_streaming(struct vb2_queue *vq, unsigned int count) +{ + struct ti_csi2rx_dev *csi = vb2_get_drv_priv(vq); + struct ti_csi2rx_dma *dma = &csi->dma; + struct ti_csi2rx_buffer *buf; + unsigned long flags; + int ret = 0; + + spin_lock_irqsave(&dma->lock, flags); + if (list_empty(&dma->queue)) + ret = -EIO; + spin_unlock_irqrestore(&dma->lock, flags); + if (ret) + return ret; + + ret = video_device_pipeline_start(&csi->vdev, &csi->pipe); + if (ret) + goto err; + + ti_csi2rx_setup_shim(csi); + + csi->sequence = 0; + + spin_lock_irqsave(&dma->lock, flags); + buf = list_entry(dma->queue.next, struct ti_csi2rx_buffer, list); + + ret = ti_csi2rx_start_dma(csi, buf); + if (ret) { + dev_err(csi->dev, "Failed to start DMA: %d\n", ret); + spin_unlock_irqrestore(&dma->lock, flags); + goto err_pipeline; + } + + list_move_tail(&buf->list, &dma->submitted); + dma->state = TI_CSI2RX_DMA_ACTIVE; + spin_unlock_irqrestore(&dma->lock, flags); + + ret = v4l2_subdev_call(csi->subdev, video, s_stream, 1); + if (ret) + goto err_dma; + + return 0; + +err_dma: + dmaengine_terminate_sync(csi->dma.chan); + writel(0, csi->shim + SHIM_DMACNTX); +err_pipeline: + video_device_pipeline_stop(&csi->vdev); +err: + ti_csi2rx_cleanup_buffers(csi, VB2_BUF_STATE_QUEUED); + return ret; +} + +static void ti_csi2rx_stop_streaming(struct vb2_queue *vq) +{ + struct ti_csi2rx_dev *csi = vb2_get_drv_priv(vq); + int ret; + + video_device_pipeline_stop(&csi->vdev); + + writel(0, csi->shim + SHIM_CNTL); + writel(0, csi->shim + SHIM_DMACNTX); + + ret = v4l2_subdev_call(csi->subdev, video, s_stream, 0); + if (ret) + dev_err(csi->dev, "Failed to stop subdev stream\n"); + + ti_csi2rx_cleanup_buffers(csi, VB2_BUF_STATE_ERROR); +} + +static const struct vb2_ops csi_vb2_qops = { + .queue_setup = ti_csi2rx_queue_setup, + .buf_prepare = ti_csi2rx_buffer_prepare, + .buf_queue = ti_csi2rx_buffer_queue, + .start_streaming = ti_csi2rx_start_streaming, + .stop_streaming = ti_csi2rx_stop_streaming, + .wait_prepare = vb2_ops_wait_prepare, + .wait_finish = vb2_ops_wait_finish, +}; + +static int ti_csi2rx_init_vb2q(struct ti_csi2rx_dev *csi) +{ + struct vb2_queue *q = &csi->vidq; + int ret; + + q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + q->io_modes = VB2_MMAP | VB2_DMABUF; + q->drv_priv = csi; + q->buf_struct_size = sizeof(struct ti_csi2rx_buffer); + q->ops = &csi_vb2_qops; + q->mem_ops = &vb2_dma_contig_memops; + q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC; + q->dev = dmaengine_get_dma_device(csi->dma.chan); + q->lock = &csi->mutex; + q->min_buffers_needed = 1; + + ret = vb2_queue_init(q); + if (ret) + return ret; + + csi->vdev.queue = q; + + return 0; +} + +static int ti_csi2rx_link_validate(struct media_link *link) +{ + struct media_entity *entity = link->sink->entity; + struct video_device *vdev = media_entity_to_video_device(entity); + struct ti_csi2rx_dev *csi = container_of(vdev, struct ti_csi2rx_dev, vdev); + struct v4l2_pix_format *csi_fmt = &csi->v_fmt.fmt.pix; + struct v4l2_subdev_format source_fmt = {}; + const struct ti_csi2rx_fmt *ti_fmt; + int ret; + + ret = v4l2_subdev_link_validate_get_format(link->source, 0, + &source_fmt, false); + if (ret) + return ret; + + if (source_fmt.format.width != csi_fmt->width) { + dev_dbg(csi->dev, "Width does not match (source %u, sink %u)\n", + source_fmt.format.width, csi_fmt->width); + return -EPIPE; + } + + if (source_fmt.format.height != csi_fmt->height) { + dev_dbg(csi->dev, "Height does not match (source %u, sink %u)\n", + source_fmt.format.height, csi_fmt->height); + return -EPIPE; + } + + if (source_fmt.format.field != csi_fmt->field && + csi_fmt->field != V4L2_FIELD_NONE) { + dev_dbg(csi->dev, "Field does not match (source %u, sink %u)\n", + source_fmt.format.field, csi_fmt->field); + return -EPIPE; + } + + ti_fmt = find_format_by_code(source_fmt.format.code); + if (!ti_fmt) { + dev_dbg(csi->dev, "Media bus format 0x%x not supported\n", + source_fmt.format.code); + return -EPIPE; + } + + if (ti_fmt->fourcc != csi_fmt->pixelformat) { + dev_dbg(csi->dev, + "Cannot transform source fmt 0x%x to sink fmt 0x%x\n", + ti_fmt->fourcc, csi_fmt->pixelformat); + return -EPIPE; + } + + return 0; +} + +static const struct media_entity_operations ti_csi2rx_video_entity_ops = { + .link_validate = ti_csi2rx_link_validate, +}; + +static int ti_csi2rx_init_dma(struct ti_csi2rx_dev *csi) +{ + struct dma_slave_config cfg = { + .src_addr_width = DMA_SLAVE_BUSWIDTH_16_BYTES, + }; + int ret; + + INIT_LIST_HEAD(&csi->dma.queue); + INIT_LIST_HEAD(&csi->dma.submitted); + spin_lock_init(&csi->dma.lock); + + csi->dma.state = TI_CSI2RX_DMA_STOPPED; + + csi->dma.chan = dma_request_chan(csi->dev, "rx0"); + if (IS_ERR(csi->dma.chan)) + return PTR_ERR(csi->dma.chan); + + ret = dmaengine_slave_config(csi->dma.chan, &cfg); + if (ret) { + dma_release_channel(csi->dma.chan); + return ret; + } + + return 0; +} + +static int ti_csi2rx_v4l2_init(struct ti_csi2rx_dev *csi) +{ + struct media_device *mdev = &csi->mdev; + struct video_device *vdev = &csi->vdev; + const struct ti_csi2rx_fmt *fmt; + struct v4l2_pix_format *pix_fmt = &csi->v_fmt.fmt.pix; + int ret; + + fmt = find_format_by_pix(V4L2_PIX_FMT_UYVY); + if (!fmt) + return -EINVAL; + + pix_fmt->width = 640; + pix_fmt->height = 480; + pix_fmt->field = V4L2_FIELD_NONE; + + ti_csi2rx_fill_fmt(fmt, &csi->v_fmt); + + mdev->dev = csi->dev; + mdev->hw_revision = 1; + strscpy(mdev->model, "TI-CSI2RX", sizeof(mdev->model)); + + media_device_init(mdev); + + strscpy(vdev->name, TI_CSI2RX_MODULE_NAME, sizeof(vdev->name)); + vdev->v4l2_dev = &csi->v4l2_dev; + vdev->vfl_dir = VFL_DIR_RX; + vdev->fops = &csi_fops; + vdev->ioctl_ops = &csi_ioctl_ops; + vdev->release = video_device_release_empty; + vdev->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_STREAMING | + V4L2_CAP_IO_MC; + vdev->lock = &csi->mutex; + video_set_drvdata(vdev, csi); + + csi->pad.flags = MEDIA_PAD_FL_SINK; + vdev->entity.ops = &ti_csi2rx_video_entity_ops; + ret = media_entity_pads_init(&csi->vdev.entity, 1, &csi->pad); + if (ret) + return ret; + + csi->v4l2_dev.mdev = mdev; + + ret = v4l2_device_register(csi->dev, &csi->v4l2_dev); + if (ret) + return ret; + + ret = media_device_register(mdev); + if (ret) { + v4l2_device_unregister(&csi->v4l2_dev); + media_device_cleanup(mdev); + return ret; + } + + return 0; +} + +static void ti_csi2rx_cleanup_dma(struct ti_csi2rx_dev *csi) +{ + dma_release_channel(csi->dma.chan); +} + +static void ti_csi2rx_cleanup_v4l2(struct ti_csi2rx_dev *csi) +{ + media_device_unregister(&csi->mdev); + v4l2_device_unregister(&csi->v4l2_dev); + media_device_cleanup(&csi->mdev); +} + +static void ti_csi2rx_cleanup_subdev(struct ti_csi2rx_dev *csi) +{ + v4l2_async_nf_unregister(&csi->notifier); + v4l2_async_nf_cleanup(&csi->notifier); +} + +static void ti_csi2rx_cleanup_vb2q(struct ti_csi2rx_dev *csi) +{ + vb2_queue_release(&csi->vidq); +} + +static int ti_csi2rx_probe(struct platform_device *pdev) +{ + struct ti_csi2rx_dev *csi; + struct resource *res; + int ret; + + csi = devm_kzalloc(&pdev->dev, sizeof(*csi), GFP_KERNEL); + if (!csi) + return -ENOMEM; + + csi->dev = &pdev->dev; + platform_set_drvdata(pdev, csi); + + mutex_init(&csi->mutex); + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + csi->shim = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(csi->shim)) { + ret = PTR_ERR(csi->shim); + goto err_mutex; + } + + ret = ti_csi2rx_init_dma(csi); + if (ret) + goto err_mutex; + + ret = ti_csi2rx_v4l2_init(csi); + if (ret) + goto err_dma; + + ret = ti_csi2rx_init_vb2q(csi); + if (ret) + goto err_v4l2; + + ret = ti_csi2rx_init_subdev(csi); + if (ret) + goto err_vb2q; + + ret = of_platform_populate(csi->dev->of_node, NULL, NULL, csi->dev); + if (ret) { + dev_err(csi->dev, "Failed to create children: %d\n", ret); + goto err_subdev; + } + + return 0; + +err_subdev: + ti_csi2rx_cleanup_subdev(csi); +err_vb2q: + ti_csi2rx_cleanup_vb2q(csi); +err_v4l2: + ti_csi2rx_cleanup_v4l2(csi); +err_dma: + ti_csi2rx_cleanup_dma(csi); +err_mutex: + mutex_destroy(&csi->mutex); + return ret; +} + +static int ti_csi2rx_remove(struct platform_device *pdev) +{ + struct ti_csi2rx_dev *csi = platform_get_drvdata(pdev); + + video_unregister_device(&csi->vdev); + + ti_csi2rx_cleanup_vb2q(csi); + ti_csi2rx_cleanup_subdev(csi); + ti_csi2rx_cleanup_v4l2(csi); + ti_csi2rx_cleanup_dma(csi); + + mutex_destroy(&csi->mutex); + + return 0; +} + +static const struct of_device_id ti_csi2rx_of_match[] = { + { .compatible = "ti,j721e-csi2rx-shim", }, + { }, +}; +MODULE_DEVICE_TABLE(of, ti_csi2rx_of_match); + +static struct platform_driver ti_csi2rx_pdrv = { + .probe = ti_csi2rx_probe, + .remove = ti_csi2rx_remove, + .driver = { + .name = TI_CSI2RX_MODULE_NAME, + .of_match_table = ti_csi2rx_of_match, + }, +}; + +module_platform_driver(ti_csi2rx_pdrv); + +MODULE_DESCRIPTION("TI J721E CSI2 RX Driver"); +MODULE_AUTHOR("Pratyush Yadav "); +MODULE_LICENSE("GPL");