From patchwork Wed Nov 19 13:56:22 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 5337451 Return-Path: X-Original-To: patchwork-dri-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 06C50C11AC for ; Wed, 19 Nov 2014 13:56:41 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 59DB8200B4 for ; Wed, 19 Nov 2014 13:56:36 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) by mail.kernel.org (Postfix) with ESMTP id 63FA220160 for ; Wed, 19 Nov 2014 13:56:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0B2B66EAE2; Wed, 19 Nov 2014 05:56:33 -0800 (PST) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mail.free-electrons.com (down.free-electrons.com [37.187.137.238]) by gabe.freedesktop.org (Postfix) with ESMTP id 6EDCD6E908 for ; Wed, 19 Nov 2014 05:56:28 -0800 (PST) Received: by mail.free-electrons.com (Postfix, from userid 106) id DF8AA1EC; Wed, 19 Nov 2014 14:56:29 +0100 (CET) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from localhost.localdomain (col31-4-88-188-83-94.fbx.proxad.net [88.188.83.94]) by mail.free-electrons.com (Postfix) with ESMTPSA id E8EAA1B9; Wed, 19 Nov 2014 14:56:28 +0100 (CET) From: Boris Brezillon To: David Airlie , dri-devel@lists.freedesktop.org Subject: [PATCH v8 2/2] drm: add DT bindings documentation for atmel-hlcdc-dc driver Date: Wed, 19 Nov 2014 14:56:22 +0100 Message-Id: <1416405382-24692-3-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1416405382-24692-1-git-send-email-boris.brezillon@free-electrons.com> References: <1416405382-24692-1-git-send-email-boris.brezillon@free-electrons.com> Cc: Mark Rutland , devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , Nicolas Ferre , linux-kernel@vger.kernel.org, Rob Herring , Alexandre Belloni , Kumar Gala , Jean-Christophe Plagniol-Villard , Andrew Victor , linux-arm-kernel@lists.infradead.org X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The Atmel HLCDC (HLCD Controller) IP available on some Atmel SoCs (i.e. at91sam9n12, at91sam9x5 family or sama5d3 family) provides a display controller device. The HLCDC block provides a single RGB output port, and only supports LCD panels connection to LCD panels for now. The atmel,panel property link the HLCDC RGB output with the LCD panel connected on this port (note that the HLCDC RGB connector implementation makes use of the DRM panel framework). Connection to other external devices (DRM bridges) might be added later by mean of a new atmel,xxx (atmel,bridge) property. Signed-off-by: Boris Brezillon --- .../devicetree/bindings/drm/atmel/hlcdc-dc.txt | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/drm/atmel/hlcdc-dc.txt diff --git a/Documentation/devicetree/bindings/drm/atmel/hlcdc-dc.txt b/Documentation/devicetree/bindings/drm/atmel/hlcdc-dc.txt new file mode 100644 index 0000000..ebc1a91 --- /dev/null +++ b/Documentation/devicetree/bindings/drm/atmel/hlcdc-dc.txt @@ -0,0 +1,53 @@ +Device-Tree bindings for Atmel's HLCDC (High LCD Controller) DRM driver + +The Atmel HLCDC Display Controller is subdevice of the HLCDC MFD device. +See ../mfd/atmel-hlcdc.txt for more details. + +Required properties: + - compatible: value should be "atmel,hlcdc-display-controller" + - pinctrl-names: the pin control state names. Should contain "default". + - pinctrl-0: should contain the default pinctrl states. + - #address-cells: should be set to 1. + - #size-cells: should be set to 0. + +Required children nodes: + Children nodes are encoding available output ports and their connections + to external devices using the OF graph reprensentation (see ../graph.txt). + At least one port node is required. + +Example: + + hlcdc: hlcdc@f0030000 { + compatible = "atmel,sama5d3-hlcdc"; + reg = <0xf0030000 0x2000>; + interrupts = <36 IRQ_TYPE_LEVEL_HIGH 0>; + clocks = <&lcdc_clk>, <&lcdck>, <&clk32k>; + clock-names = "periph_clk","sys_clk", "slow_clk"; + status = "disabled"; + + hlcdc-display-controller { + compatible = "atmel,hlcdc-display-controller"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lcd_base &pinctrl_lcd_rgb888>; + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + + hlcdc_panel_output: endpoint@0 { + reg = <0>; + remote-endpoint = <&panel_input>; + }; + }; + }; + + hlcdc_pwm: hlcdc-pwm { + compatible = "atmel,hlcdc-pwm"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_lcd_pwm>; + #pwm-cells = <3>; + }; + };