From patchwork Sat Mar 17 22:15:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Rosin X-Patchwork-Id: 887336 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=axentia.se Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=axentia.se header.i=@axentia.se header.b="q1hmiOaU"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 403c9974l1z9sTC for ; Sun, 18 Mar 2018 09:15:57 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753323AbeCQWPy (ORCPT ); Sat, 17 Mar 2018 18:15:54 -0400 Received: from mail-he1eur01on0128.outbound.protection.outlook.com ([104.47.0.128]:32661 "EHLO EUR01-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753137AbeCQWPu (ORCPT ); Sat, 17 Mar 2018 18:15:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axentia.se; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=xPbNvmmz8kgGHKoY/RMxAJKZJhqIVveIa6ySDqgXuJ8=; b=q1hmiOaUC5UNfs7CrfzYPs/QOFGeIfJ74ZOUFP5DNr+W4MuxpxJTUjvDqiiQkCiJ2amUfRkWkI8wcpTf/ErL/M/EQKuTBk8Wv3HyjoRozykD/AP50A/3vdmfyGrqZIUgaaKhnZvZ1KavUQG5IaMFu4Go6HLLOh0U4LwMlUCEwXI= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=peda@axentia.se; Received: from orc.pedanet (85.226.244.23) by AM4PR0202MB2769.eurprd02.prod.outlook.com (2603:10a6:200:8c::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.588.14; Sat, 17 Mar 2018 22:15:46 +0000 From: Peter Rosin To: linux-kernel@vger.kernel.org Cc: Peter Rosin , David Airlie , Rob Herring , Mark Rutland , Archit Taneja , Andrzej Hajda , Laurent Pinchart , Daniel Vetter , Gustavo Padovan , Sean Paul , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [RFC PATCH 1/3] dt-bindings: display: bridge: lvds-transmitter: add ti, ds90c185 Date: Sat, 17 Mar 2018 23:15:23 +0100 Message-Id: <20180317221525.18534-2-peda@axentia.se> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180317221525.18534-1-peda@axentia.se> References: <20180317221525.18534-1-peda@axentia.se> MIME-Version: 1.0 X-Originating-IP: [85.226.244.23] X-ClientProxiedBy: DB6P189CA0021.EURP189.PROD.OUTLOOK.COM (2603:10a6:6:2e::34) To AM4PR0202MB2769.eurprd02.prod.outlook.com (2603:10a6:200:8c::19) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: f9563e58-05a6-4f0b-feb1-08d58c54a277 X-Microsoft-Antispam: UriScan:; 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Signed-off-by: Peter Rosin --- .../devicetree/bindings/display/bridge/lvds-transmitter.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt b/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt index fd39ad34c383..9d09190d9210 100644 --- a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt +++ b/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt @@ -24,6 +24,11 @@ Required properties: - compatible: Must be "lvds-encoder" + Known actual chips (these should still use "lvds-encoder" as a + fallback compatible) include: + + "ti,ds90c185" + Required nodes: This device has two video ports. Their connections are modeled using the OF From patchwork Sat Mar 17 22:15:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Rosin X-Patchwork-Id: 887337 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=axentia.se Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=axentia.se header.i=@axentia.se header.b="r5PcgF0A"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 403c9Z1RNLz9sSn for ; Sun, 18 Mar 2018 09:16:18 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751809AbeCQWQP (ORCPT ); Sat, 17 Mar 2018 18:16:15 -0400 Received: from mail-he1eur01on0134.outbound.protection.outlook.com ([104.47.0.134]:7790 "EHLO EUR01-HE1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1752649AbeCQWQJ (ORCPT ); Sat, 17 Mar 2018 18:16:09 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=axentia.se; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version; bh=q1ACmI0RzmNFH1uaBSR39Cohp+TUt6TvI4aAvGY/PQk=; b=r5PcgF0AY4ACZp68/pFrSF3DOpAlt0vMIG2xSh22BIs2sG07lPZYEL1rpW5fgGFc6S8DAJJYnHfMXKKGnl5g/vNWhHLKean/sibEXf9AlyVZluzmSTYQsKGqwqtxiEP8wNUYgwRtATWo+wuUbMLasc5Cac4YvS86XBhU8gK3dvY= Authentication-Results: spf=none (sender IP is ) smtp.mailfrom=peda@axentia.se; Received: from orc.pedanet (85.226.244.23) by AM4PR0202MB2769.eurprd02.prod.outlook.com (2603:10a6:200:8c::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.588.14; Sat, 17 Mar 2018 22:16:05 +0000 From: Peter Rosin To: linux-kernel@vger.kernel.org Cc: Peter Rosin , David Airlie , Rob Herring , Mark Rutland , Archit Taneja , Andrzej Hajda , Laurent Pinchart , Daniel Vetter , Gustavo Padovan , Sean Paul , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org Subject: [RFC PATCH 3/3] drm: bridge: lvds-encoder: on request, override the bus format Date: Sat, 17 Mar 2018 23:15:25 +0100 Message-Id: <20180317221525.18534-4-peda@axentia.se> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20180317221525.18534-1-peda@axentia.se> References: <20180317221525.18534-1-peda@axentia.se> MIME-Version: 1.0 X-Originating-IP: [85.226.244.23] X-ClientProxiedBy: DB6P189CA0021.EURP189.PROD.OUTLOOK.COM (2603:10a6:6:2e::34) To AM4PR0202MB2769.eurprd02.prod.outlook.com (2603:10a6:200:8c::19) X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 6877a34c-d77c-46e2-3ec8-08d58c54adb6 X-Microsoft-Antispam: UriScan:; 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Signed-off-by: Peter Rosin --- .../bindings/display/bridge/lvds-transmitter.txt | 8 ++++++++ drivers/gpu/drm/bridge/lvds-encoder.c | 18 ++++++++++++++++++ 2 files changed, 26 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt b/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt index 9d09190d9210..c0fbe74272e7 100644 --- a/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt +++ b/Documentation/devicetree/bindings/display/bridge/lvds-transmitter.txt @@ -29,6 +29,14 @@ Required properties: "ti,ds90c185" +Optional properties: + +- interface-pix-fmt: + Override the bus format of the panel, in case the bridge + converts the signals. Recognized formats include: + + "rgb565" + Required nodes: This device has two video ports. Their connections are modeled using the OF diff --git a/drivers/gpu/drm/bridge/lvds-encoder.c b/drivers/gpu/drm/bridge/lvds-encoder.c index 75b0d3f6e4de..acff3a5b0562 100644 --- a/drivers/gpu/drm/bridge/lvds-encoder.c +++ b/drivers/gpu/drm/bridge/lvds-encoder.c @@ -39,6 +39,9 @@ static int lvds_encoder_probe(struct platform_device *pdev) struct device_node *panel_node; struct drm_panel *panel; struct lvds_encoder *lvds_encoder; + u32 bus_format = 0; + const char *fmt; + int ret; lvds_encoder = devm_kzalloc(&pdev->dev, sizeof(*lvds_encoder), GFP_KERNEL); @@ -79,6 +82,21 @@ static int lvds_encoder_probe(struct platform_device *pdev) if (IS_ERR(lvds_encoder->panel_bridge)) return PTR_ERR(lvds_encoder->panel_bridge); + ret = of_property_read_string(pdev->dev.of_node, + "interface-pix-fmt", &fmt); + if (!ret) { + if (!strcmp(fmt, "rgb565")) { + bus_format = MEDIA_BUS_FMT_RGB565_1X16; + } else { + dev_dbg(&pdev->dev, + "requested interface-pix-fmt not recognized\n"); + return -EINVAL; + } + } + if (bus_format) + drm_panel_bridge_set_bus_format(lvds_encoder->panel_bridge, + bus_format); + /* The panel_bridge bridge is attached to the panel's of_node, * but we need a bridge attached to our of_node for our user * to look up.