From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A222EC433E2 for ; Tue, 14 Jul 2020 07:14:52 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 722AC2220F for ; Tue, 14 Jul 2020 07:14:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="vv9NY91N"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="PmNE01Mn" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 722AC2220F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=I2D0YqJ+OfeMLxx6RVpUgBtSKIQLww86bCilBfXd+58=; b=vv9NY91NQ4bbyoQaU3bR/ViZ2 uYgIAmKmbp/PO8A8ObVqwF95E7e0yac8lfWlZth8WsRBkJ+56GROO0NOA1EAqCOuJC+SG54BVac7C rb/mtin4xj+gjdggrxi7bCi7v+SNALFQp3qiSZTwJ466b4Hfgz+FN4FHVbpaIPLmbC2G/IHSzfouQ 9dt9VbPyNMxNT2lQFUdKsDNRujflWttbqISk0H4W4Pr8FM7ZBpwc2rTC148A27Arlf4/+OkSDb+4K motBRddg4yaPTB1PVX/P9AQ/KxGlDpVOS3BDDynNwLJl2TvVRUIVVItb0X5FVrWzogLuxssbbQku9 wgjtC08qg==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jvF8B-0002Oh-Mf; Tue, 14 Jul 2020 07:13:35 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jvF7x-0002Ht-1W for linux-arm-kernel@lists.infradead.org; Tue, 14 Jul 2020 07:13:24 +0000 Received: from wens.tw (mirror2.csie.ntu.edu.tw [140.112.194.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id C97342220F; Tue, 14 Jul 2020 07:13:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594710798; bh=rDhbGvCqBc5qk7qu3M/g+nT1J2rIXk8oam06CO8RgGQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PmNE01MnT5VBTE01AE6Q8G5DNRXf0MO1AirTJDxdPVe6c2tx7RjNv1cBhsDqYnB6I y3RjjOdpaIeCu/tSL735RmrgpgggPhx72lysBMK8gG0qciY8P9XLTlgiEDVyYhp5gV RNoBxHB024ZUdJELanZ212tIlW4oVmo115ncM4XE= Received: by wens.tw (Postfix, from userid 1000) id E239A5FA8D; Tue, 14 Jul 2020 15:13:13 +0800 (CST) From: Chen-Yu Tsai To: Maxime Ripard , Rob Herring , Sam Ravnborg , Thierry Reding , David Airlie , Daniel Vetter Subject: [PATCH 1/5] dt-bindings: display: panel-dpi: Add bits-per-color property Date: Tue, 14 Jul 2020 15:13:01 +0800 Message-Id: <20200714071305.18492-2-wens@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200714071305.18492-1-wens@kernel.org> References: <20200714071305.18492-1-wens@kernel.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200714_031321_310576_E05BE7F7 X-CRM114-Status: GOOD ( 11.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Chen-Yu Tsai , dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, Siarhei Siamashka Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Chen-Yu Tsai Some LCD panels do not support 24-bit true color, or 8bits per channel RGB. Many low end ones only support up to 6 bits per channel natively. Add a device tree property to describe the native bit depth of the panel. This is separate from the bus width or format of the connection to the display output. Signed-off-by: Chen-Yu Tsai --- .../devicetree/bindings/display/panel/panel-dpi.yaml | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/display/panel/panel-dpi.yaml b/Documentation/devicetree/bindings/display/panel/panel-dpi.yaml index 0cd74c8dab42..8eb013fb1969 100644 --- a/Documentation/devicetree/bindings/display/panel/panel-dpi.yaml +++ b/Documentation/devicetree/bindings/display/panel/panel-dpi.yaml @@ -26,6 +26,9 @@ properties: height-mm: true label: true panel-timing: true + bits-per-color: + description: + Shall contain an integer describing the number of bits per color. port: true power-supply: true reset-gpios: true @@ -42,6 +45,7 @@ examples: panel { compatible = "osddisplays,osd057T0559-34ts", "panel-dpi"; label = "osddisplay"; + bits-per-color = <8>; power-supply = <&vcc_supply>; backlight = <&backlight>; -- 2.27.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel