From patchwork Wed Jan 25 11:35:29 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aradhya Bhatia X-Patchwork-Id: 48120 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:eb09:0:0:0:0:0 with SMTP id s9csp226639wrn; Wed, 25 Jan 2023 03:38:17 -0800 (PST) X-Google-Smtp-Source: AK7set/P5tjNU6ByzJK/kJokMQPGb/6EX/FwUzLJBiZlcONCfLXUIZnhI9NeCXzOMGeDQiI1DR9s X-Received: by 2002:a05:6402:289d:b0:4a0:b051:5f21 with SMTP id eg29-20020a056402289d00b004a0b0515f21mr990582edb.27.1674646697628; Wed, 25 Jan 2023 03:38:17 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1674646697; cv=none; d=google.com; s=arc-20160816; b=Ec4XwXGkOp+xgXIfQFWUio9lT2PQSYvizy6OU9eAqJE289lWvfWRtM+TqH+V5vW/Dp Q9GXw6sGZWPtGQrJlWng7ABarkzNdh7kiWSslsUg7XV0Kt9quzRIJqflIeLcbS6MHDAp ctfwtWNRPltz9C40I7ZOmLp5WxMOhCbboyqXI5Hmo9AWHJ2LC1PxRj8HMK+uUh3M3och X0f3jNRe2rdvaYXs0jQUl//WLCHCjcU7z4npQRXwUyfMtOx6DqFE4z4/fqyMBfUKUDFB s9vuB5XINpJ9UwAMsJ+jMUNPwrZxtaRztVusGa0QYOSg4f+lOjYkvz5jSBjmZ7Riud9Z kLdw== 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=YNw16xWGpsD/uXggMokkTEYED+EdmUza/46l2QtEBuE=; b=UZ1nhcd2XNIr2tsQe6RhnqWQESsOTFEqMy4Fn1rab8MBXCPZYsozPnWj6t29tskKlK Ub+o5LqQL/cgK8QloL7oImNZaI4tliAAT1FZ/y0LWVBeTVOe2O/qVpXz16gK/wP3Mqam uxjn1Y7jtuofvnryUrSPyvm1wbke0pIuuXpSOr7YMaCfx5Z3Kq2z7rjA/Uhcr2F0C8/K FCixTQLm4WRFvl+85Q/2Q6FNjsDu3D4XNTyCSc0mKIyM/2NwMwLOcD/ddiRuNBamdOne VWEf9e8t/vxlHCYYU0/QnM9eGn/NReldhtmbUGKjvVJsP7pHK+g2p7A3T1wnIi+Pc09w SJAw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ti.com header.s=ti-com-17Q1 header.b=k6KWqtkU; 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 s10-20020a056402014a00b00499e590d47esi5695993edu.36.2023.01.25.03.37.53; Wed, 25 Jan 2023 03:38:17 -0800 (PST) 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=k6KWqtkU; 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 S235358AbjAYLgs (ORCPT + 99 others); Wed, 25 Jan 2023 06:36:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56172 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235516AbjAYLgn (ORCPT ); Wed, 25 Jan 2023 06:36:43 -0500 Received: from lelv0142.ext.ti.com (lelv0142.ext.ti.com [198.47.23.249]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 658F4568BC; Wed, 25 Jan 2023 03:36:10 -0800 (PST) Received: from fllv0034.itg.ti.com ([10.64.40.246]) by lelv0142.ext.ti.com (8.15.2/8.15.2) with ESMTP id 30PBZia4120986; Wed, 25 Jan 2023 05:35:44 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1674646544; bh=YNw16xWGpsD/uXggMokkTEYED+EdmUza/46l2QtEBuE=; h=From:To:CC:Subject:Date:In-Reply-To:References; b=k6KWqtkUR+mL9LJd4SJ3ZjdgV6+2P5hw9d8Ro5jREh0ZrLIIzB981gI1/lUb57dD7 BMj5UpYFTEbeGdjxqHyw7b86rFF9z1GBoxNBSt+ngimRK8QvzwhJUIZLMc2xd3oHHF fccgYoQt8rfHlL+/zEUyrWWp76rv99n4B4WjB9Ao= Received: from DLEE105.ent.ti.com (dlee105.ent.ti.com [157.170.170.35]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 30PBZixI013337 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 25 Jan 2023 05:35:44 -0600 Received: from DLEE114.ent.ti.com (157.170.170.25) by DLEE105.ent.ti.com (157.170.170.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16; Wed, 25 Jan 2023 05:35:43 -0600 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.16 via Frontend Transport; Wed, 25 Jan 2023 05:35:43 -0600 Received: from localhost (ileaxei01-snat.itg.ti.com [10.180.69.5]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 30PBZght021900; Wed, 25 Jan 2023 05:35:43 -0600 From: Aradhya Bhatia To: Rob Herring , Krzysztof Kozlowski , Tomi Valkeinen , Jyri Sarha , David Airlie , Daniel Vetter CC: DRI Development List , Devicetree List , Linux Kernel List , Nishanth Menon , Vignesh Raghavendra , Rahul T R , Devarsh Thakkar , Jai Luthra , Jayesh Choudhary , Aradhya Bhatia Subject: [PATCH v7 6/6] drm/tidss: Enable Dual and Duplicate Modes for OLDI Date: Wed, 25 Jan 2023 17:05:29 +0530 Message-ID: <20230125113529.13952-7-a-bhatia1@ti.com> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230125113529.13952-1-a-bhatia1@ti.com> References: <20230125113529.13952-1-a-bhatia1@ti.com> MIME-Version: 1.0 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 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?1755994335497541188?= X-GMAIL-MSGID: =?utf-8?q?1755994335497541188?= The AM625 DSS IP contains 2 OLDI TXes which can work together to enable 2 cloned displays of or even a single dual-link display with higher resolutions like WUXGA (1920x1200@60fps) with a reduced OLDI clock frequency. Configure the necessary register to enable and disable the OLDI TXes with required modes configurations. Signed-off-by: Aradhya Bhatia Reviewed-by: Tomi Valkeinen --- drivers/gpu/drm/tidss/tidss_dispc.c | 24 ++++++++++++++++++++++-- 1 file changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/tidss/tidss_dispc.c b/drivers/gpu/drm/tidss/tidss_dispc.c index 0e03557bc142..79ad9743a93b 100644 --- a/drivers/gpu/drm/tidss/tidss_dispc.c +++ b/drivers/gpu/drm/tidss/tidss_dispc.c @@ -1020,8 +1020,8 @@ static void dispc_enable_oldi(struct dispc_device *dispc, u32 hw_videoport, int count = 0; /* - * For the moment DUALMODESYNC, MASTERSLAVE, MODE, and SRC - * bits of DISPC_VP_DSS_OLDI_CFG are set statically to 0. + * For the moment MASTERSLAVE, and SRC bits of DISPC_VP_DSS_OLDI_CFG are + * always set to 0. */ if (fmt->data_width == 24) @@ -1038,6 +1038,26 @@ static void dispc_enable_oldi(struct dispc_device *dispc, u32 hw_videoport, oldi_cfg |= BIT(0); /* ENABLE */ + switch (dispc->oldi_mode) { + case OLDI_MODE_SINGLE_LINK: + /* All configuration is done for this mode. */ + break; + + case OLDI_MODE_CLONE_SINGLE_LINK: + oldi_cfg |= BIT(5); /* CLONE MODE */ + break; + + case OLDI_MODE_DUAL_LINK: + oldi_cfg |= BIT(11); /* DUALMODESYNC */ + oldi_cfg |= BIT(3); /* data-mapping field also indicates dual-link mode */ + break; + + default: + dev_warn(dispc->dev, "%s: Incorrect oldi mode. Returning.\n", + __func__); + return; + } + dispc_vp_write(dispc, hw_videoport, DISPC_VP_DSS_OLDI_CFG, oldi_cfg); while (!(oldi_reset_bit & dispc_read(dispc, DSS_SYSSTATUS)) &&