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[82.149.1.233]) by smtp.gmail.com with ESMTPSA id m15-20020a170906720f00b00947ab65d932sm3607034ejk.83.2023.04.15.03.47.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Apr 2023 03:47:03 -0700 (PDT) From: Jernej Skrabec To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, wens@csie.org, samuel@sholland.org Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, airlied@gmail.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-media@vger.kernel.org, hverkuil-cisco@xs4all.nl, Jernej Skrabec Subject: [PATCH 1/3] dt-bindings: display: synopsys,dw-hdmi: Add property for disabling CEC Date: Sat, 15 Apr 2023 12:46:11 +0200 Message-Id: <20230415104613.61224-2-jernej.skrabec@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230415104613.61224-1-jernej.skrabec@gmail.com> References: <20230415104613.61224-1-jernej.skrabec@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS 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: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1763239782466292498?= X-GMAIL-MSGID: =?utf-8?q?1763239782466292498?= Even though some DW-HDMI controllers have perfectly usable HDMI-CEC implementation, some boards might prefer not to use it or even use software implementation instead. Add property for disabling CEC so driver doesn't expose unused CEC interface, if CEC pin isn't connected anywhere. Signed-off-by: Jernej Skrabec --- .../devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml index 4b7e54a8f037..624d32c024f6 100644 --- a/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml +++ b/Documentation/devicetree/bindings/display/bridge/synopsys,dw-hdmi.yaml @@ -48,6 +48,11 @@ properties: interrupts: maxItems: 1 + snps,disable-cec: + $ref: /schemas/types.yaml#/definitions/flag + description: + Disable HDMI-CEC. + additionalProperties: true ... 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[82.149.1.233]) by smtp.gmail.com with ESMTPSA id m15-20020a170906720f00b00947ab65d932sm3607034ejk.83.2023.04.15.03.47.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Apr 2023 03:47:05 -0700 (PDT) From: Jernej Skrabec To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, wens@csie.org, samuel@sholland.org Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, airlied@gmail.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-media@vger.kernel.org, hverkuil-cisco@xs4all.nl, Jernej Skrabec Subject: [PATCH 2/3] drm/bridge: dw_hdmi: Handle snps,disable-cec property Date: Sat, 15 Apr 2023 12:46:12 +0200 Message-Id: <20230415104613.61224-3-jernej.skrabec@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230415104613.61224-1-jernej.skrabec@gmail.com> References: <20230415104613.61224-1-jernej.skrabec@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS 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: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1763241640435883976?= X-GMAIL-MSGID: =?utf-8?q?1763241640435883976?= New DT property allows to skip CEC initialization. Signed-off-by: Jernej Skrabec Reviewed-by: Robert Foss --- drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c index 603bb3c51027..e7e8199d2fb1 100644 --- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c +++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c @@ -3615,7 +3615,9 @@ struct dw_hdmi *dw_hdmi_probe(struct platform_device *pdev, hdmi->audio = platform_device_register_full(&pdevinfo); } - if (!plat_data->disable_cec && (config0 & HDMI_CONFIG0_CEC)) { + if (!plat_data->disable_cec && + !of_property_read_bool(np, "snps,disable-cec") && + (config0 & HDMI_CONFIG0_CEC)) { cec.hdmi = hdmi; cec.ops = &dw_hdmi_cec_ops; cec.irq = irq; From patchwork Sat Apr 15 10:46:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Jernej_=C5=A0krabec?= X-Patchwork-Id: 83696 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a59:b0ea:0:b0:3b6:4342:cba0 with SMTP id b10csp961505vqo; Sat, 15 Apr 2023 03:53:28 -0700 (PDT) X-Google-Smtp-Source: AKy350Y6Rot21CK/NkB2PYBNjME1rsS8zWf/fKPM+mxZd7o9ftkK6cvz0ry0AhJi0mrtfDHHByZq X-Received: by 2002:a17:903:2584:b0:1a5:2621:34cd with SMTP id jb4-20020a170903258400b001a5262134cdmr4528213plb.39.1681556008473; Sat, 15 Apr 2023 03:53:28 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1681556008; cv=none; d=google.com; s=arc-20160816; b=oVKXS4whAcboHuk+OLZosMHkDoHV3bhXONItSdL6fk6nRKINtRXcD8xXY6VDWx7FhI /IyJtmE74a0r86O/v+BE9xwP9DPUOYxzqxpgeNhgIaYKNMo4t3jKqXX5oJVr9XIIvkvD vWCil3OLQTKKWKSdyCix2C5yGW2yjs+Owl0Nf9hlc9fIv0IjtE96Of4rC3/U6TdQHqQ0 0pLiQX7kWZBJy4oetMkni602lIP5Mn5NdJW5YoP5xDi8/U2b1D8c+8L3SbJER5nFVqQ9 qW9t3hrBsxd/N22yd16nzLIXmFsiMxUVBOVVuNdGpHILUBp0tBwUK6Njg2ZZQgbQi1x+ /0IQ== 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=dISlVJnWoSaQPOrIVy9KR50yRndMlP9B9wtDi4lm21g=; b=I8h3z8nUY6UYPmGz5e2W4w4cfHozGvD0nvsL29AR4O9zvDqeXnTZmpa6TfXEruGUEM vybNEttI0Yarhe5F3iYOhUC4B4IDV7y1iKRnAAWPnJqZmypzuBq/1YL5DdiKQOlTfGN7 Pa0+u7GP1Ey9W64syFKH3qWr2vdV4kcqxV57zkTBSEH4EkKCqOsGno1mKQzNSJYfVVzw DJPX5DqIu+DPWd5cuvt21cHvGsa/wNhuIXA3gz/YZJtmgVNLMGOfyn2pa75HNqinWScD KG74Ndk0kDQDzpJotOoEEJFyPpOtiacRHxjgKI+IAVJDIGw/T9e/ASo892+hbMAe8wol ijbQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@gmail.com header.s=20221208 header.b=SCjs3vMv; 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=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: from out1.vger.email (out1.vger.email. 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[82.149.1.233]) by smtp.gmail.com with ESMTPSA id m15-20020a170906720f00b00947ab65d932sm3607034ejk.83.2023.04.15.03.47.05 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 15 Apr 2023 03:47:06 -0700 (PDT) From: Jernej Skrabec To: andrzej.hajda@intel.com, neil.armstrong@linaro.org, rfoss@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, wens@csie.org, samuel@sholland.org Cc: Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, airlied@gmail.com, daniel@ffwll.ch, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-media@vger.kernel.org, hverkuil-cisco@xs4all.nl, Jernej Skrabec Subject: [PATCH 3/3] ARM: dts: sun8i: h3: beelink-x2: Disable DW-HDMI CEC Date: Sat, 15 Apr 2023 12:46:13 +0200 Message-Id: <20230415104613.61224-4-jernej.skrabec@gmail.com> X-Mailer: git-send-email 2.40.0 In-Reply-To: <20230415104613.61224-1-jernej.skrabec@gmail.com> References: <20230415104613.61224-1-jernej.skrabec@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS 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: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1763239273219866748?= X-GMAIL-MSGID: =?utf-8?q?1763239273219866748?= Beelink X2 uses software implementation of CEC even though DW-HDMI has working hardware implementation. Disable unused DW-HDMI CEC. Signed-off-by: Jernej Skrabec --- arch/arm/boot/dts/sun8i-h3-beelink-x2.dts | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts b/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts index a6d38ecee141..38f40d69e5c5 100644 --- a/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts +++ b/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts @@ -150,6 +150,7 @@ &emac { }; &hdmi { + snps,disable-cec; status = "okay"; };