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=-8.9 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,T_DKIMWL_WL_HIGH,USER_AGENT_GIT autolearn=ham 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 0E90FC4321A for ; Tue, 11 Jun 2019 00:23:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DAB802145D for ; Tue, 11 Jun 2019 00:23:10 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="X12Jn3AU" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2390784AbfFKAXJ (ORCPT ); Mon, 10 Jun 2019 20:23:09 -0400 Received: from mail-pg1-f196.google.com ([209.85.215.196]:45418 "EHLO mail-pg1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388749AbfFKAXI (ORCPT ); Mon, 10 Jun 2019 20:23:08 -0400 Received: by mail-pg1-f196.google.com with SMTP id w34so5875292pga.12 for ; Mon, 10 Jun 2019 17:23:07 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ys0DSil+WvCMaDGevz2dSiLwFPZR4jwAs4InRe1vZNA=; b=X12Jn3AUd//JNQCTWSBR6eh9r650AWw9Xjg7KpO0V+0SA2HdJEsEae1jQkqDPHyQKe F9jkL7x/7/FbANfIR4mwRASAg6AXFvQesI26VoF7tgXODbVqSvH4TDWixSqzy/8t/2Oe o6kb4qUN0UwhrIOg/a3lFqtIXvRAqNQYOcNrA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ys0DSil+WvCMaDGevz2dSiLwFPZR4jwAs4InRe1vZNA=; b=Mi4zEEp+XcUH3kwzqgTA5QiqNKbjZCdQ5JVsv3i4BMtklZlzrtbGHwObyppGB49nJj mcNZ7STt/ht19GkuDqLFrEdD//CACy0wWW1hFijYLZCJOZvBDSOwu89IJ05jceagk4Wy 1AbT5xyRa026YXDYyn0g0HRlTk654VHfWa53vhP2cs5EDzc7BvHMckK4/GQGDfb3kBqP PAb0WsafqdKeDL4n18WGvH5GxZyA+1c6rwFHMb3GvdZZdEu3QNbtjQmNERUgU53YAYs/ WcTeuqgJ0RG+s4b/Zc6ed2634OWIp/nnZ7z8il3+nF++Ud/EKIax9w3eEOtDcQQr5fCg y8vA== X-Gm-Message-State: APjAAAX1b3l/6P1YeeWZP9Ui3NV5b+3p6VNsZMXtHfAr6clfWRPOud05 IeoLYmeGpwk6C8EnX+E35MVuBYeYoBg= X-Google-Smtp-Source: APXvYqxAc42hyNbAAjVSUHVWNoM3DB7fjZVsqMVi9qbCUz/7kQyXOOCdI5Fe02ZPTYUapCArvj8xLA== X-Received: by 2002:a62:7552:: with SMTP id q79mr57521992pfc.71.1560212587343; Mon, 10 Jun 2019 17:23:07 -0700 (PDT) Received: from exogeni.mtv.corp.google.com ([2620:15c:202:1:5be8:f2a6:fd7b:7459]) by smtp.gmail.com with ESMTPSA id t4sm540317pjq.19.2019.06.10.17.23.06 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 10 Jun 2019 17:23:06 -0700 (PDT) From: Derek Basehore To: linux-kernel@vger.kernel.org Cc: maarten.lankhorst@linux.intel.com, maxime.ripard@bootlin.com, sean@poorly.run, airlied@linux.ie, daniel@ffwll.ch, thierry.reding@gmail.com, sam@ravnborg.org, jani.nikula@linux.intel.com, joonas.lahtinen@linux.intel.com, rodrigo.vivi@intel.com, ck.hu@mediatek.com, p.zabel@pengutronix.de, matthias.bgg@gmail.com, dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Derek Basehore Subject: [PATCH 2/5] dt-bindings: display/panel: Expand rotation documentation Date: Mon, 10 Jun 2019 17:22:53 -0700 Message-Id: <20190611002256.186969-3-dbasehore@chromium.org> X-Mailer: git-send-email 2.22.0.rc2.383.gf4fbbf30c2-goog In-Reply-To: <20190611002256.186969-1-dbasehore@chromium.org> References: <20190611002256.186969-1-dbasehore@chromium.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This adds to the rotation documentation to explain how drivers should use the property and gives an example of the property in a devicetree node. Signed-off-by: Derek Basehore --- .../bindings/display/panel/panel.txt | 32 +++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/Documentation/devicetree/bindings/display/panel/panel.txt b/Documentation/devicetree/bindings/display/panel/panel.txt index e2e6867852b8..f35d62d933fc 100644 --- a/Documentation/devicetree/bindings/display/panel/panel.txt +++ b/Documentation/devicetree/bindings/display/panel/panel.txt @@ -2,3 +2,35 @@ Common display properties ------------------------- - rotation: Display rotation in degrees counter clockwise (0,90,180,270) + +Property read from the device tree using of of_drm_get_panel_orientation + +The panel driver may apply the rotation at the TCON level, which will +make the panel look like it isn't rotated to the kernel and any other +software. + +If not, a panel orientation property should be added through the SoC +vendor DRM code using the drm_connector_init_panel_orientation_property +function. + +Example: + panel: panel@0 { + compatible = "boe,himax8279d8p"; + reg = <0>; + enable-gpios = <&pio 45 0>; + pp33-gpios = <&pio 35 0>; + pp18-gpios = <&pio 36 0>; + pinctrl-names = "default", "state_3300mv", "state_1800mv"; + pinctrl-0 = <&panel_pins_default>; + pinctrl-1 = <&panel_pins_3300mv>; + pinctrl-2 = <&panel_pins_1800mv>; + backlight = <&backlight_lcd0>; + rotation = <180>; + status = "okay"; + + port { + panel_in: endpoint { + remote-endpoint = <&dsi_out>; + }; + }; + }; -- 2.22.0.rc2.383.gf4fbbf30c2-goog