From patchwork Wed Oct 1 14:53:03 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Boris BREZILLON X-Patchwork-Id: 5012481 Return-Path: X-Original-To: patchwork-linux-arm@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 E8D4CBEEA6 for ; Wed, 1 Oct 2014 14:56:29 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 04709201EF for ; Wed, 1 Oct 2014 14:56:29 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C508220221 for ; Wed, 1 Oct 2014 14:56:27 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XZLIU-0004KK-Sv; Wed, 01 Oct 2014 14:54:30 +0000 Received: from top.free-electrons.com ([176.31.233.9] helo=mail.free-electrons.com) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XZLI2-0003sh-Cg for linux-arm-kernel@lists.infradead.org; Wed, 01 Oct 2014 14:54:03 +0000 Received: by mail.free-electrons.com (Postfix, from userid 106) id 018C4F62; Wed, 1 Oct 2014 16:53:37 +0200 (CEST) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-2.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, 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 42A297D2; Wed, 1 Oct 2014 16:53:23 +0200 (CEST) From: Boris Brezillon To: David Airlie , dri-devel@lists.freedesktop.org, Nicolas Ferre , Jean-Christophe Plagniol-Villard , Alexandre Belloni , Andrew Victor , Samuel Ortiz , Lee Jones , Thierry Reding , linux-pwm@vger.kernel.org, Rob Clark Subject: [PATCH v7 06/11] drm: add DT bindings documentation for atmel-hlcdc-dc driver Date: Wed, 1 Oct 2014 16:53:03 +0200 Message-Id: <1412175188-28278-7-git-send-email-boris.brezillon@free-electrons.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1412175188-28278-1-git-send-email-boris.brezillon@free-electrons.com> References: <1412175188-28278-1-git-send-email-boris.brezillon@free-electrons.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141001_075402_777307_AD76708D X-CRM114-Status: GOOD ( 10.60 ) X-Spam-Score: 0.4 (/) Cc: Mark Rutland , devicetree@vger.kernel.org, Pawel Moll , Ian Campbell , Boris BREZILLON , linux-kernel@vger.kernel.org, Rob Herring , Kumar Gala , linux-arm-kernel@lists.infradead.org, Mark Yao X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Boris BREZILLON 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>; + }; + };