From patchwork Mon Jan 7 05:11:30 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Afzal Mohammed X-Patchwork-Id: 1939421 Return-Path: X-Original-To: patchwork-linux-fbdev@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id A37E2DF230 for ; Mon, 7 Jan 2013 05:11:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751837Ab3AGFK7 (ORCPT ); Mon, 7 Jan 2013 00:10:59 -0500 Received: from devils.ext.ti.com ([198.47.26.153]:60674 "EHLO devils.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751646Ab3AGFK4 (ORCPT ); Mon, 7 Jan 2013 00:10:56 -0500 Received: from dbdp20.itg.ti.com ([172.24.170.38]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id r075AeIM014611; Sun, 6 Jan 2013 23:10:41 -0600 Received: from DBDE70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id r075AeYM023867; Mon, 7 Jan 2013 10:40:40 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by dbde70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 14.1.323.3; Mon, 7 Jan 2013 10:40:39 +0530 Received: from ucmsshproxy.india.ext.ti.com (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with SMTP id r075AdM5027575; Mon, 7 Jan 2013 10:40:39 +0530 Received: from symphony.india.ext.ti.com (unknown [192.168.247.13]) by ucmsshproxy.india.ext.ti.com (Postfix) with ESMTP id A18C4158005; Mon, 7 Jan 2013 10:40:39 +0530 (IST) Received: from ubuntu-psp-linux.india.ext.ti.com (ubuntu-psp-linux [192.168.247.46]) by symphony.india.ext.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id r075AcR24435; Mon, 7 Jan 2013 10:40:38 +0530 (IST) From: Afzal Mohammed To: Florian Tobias Schandinat , Tomi Valkeinen , Grant Likely , Rob Herring , Rob Landley , Steffen Trumtrar , Sekhar Nori , Vaibhav Hiremath , , , , , Subject: [PATCH 08/10] video: da8xx-fb: obtain fb_videomode info from dt Date: Mon, 7 Jan 2013 10:41:30 +0530 Message-ID: <78e026555731e0bbe8475610279d3e5265d124b9.1357304090.git.afzal@ti.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Obtain fb_videomode details for the connected lcd panel using the display timing details present in DT. Signed-off-by: Afzal Mohammed --- .../devicetree/bindings/video/fb-da8xx.txt | 20 ++++++++++++++++++++ drivers/video/da8xx-fb.c | 16 ++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/Documentation/devicetree/bindings/video/fb-da8xx.txt b/Documentation/devicetree/bindings/video/fb-da8xx.txt index 581e014..eeb935b 100644 --- a/Documentation/devicetree/bindings/video/fb-da8xx.txt +++ b/Documentation/devicetree/bindings/video/fb-da8xx.txt @@ -6,6 +6,11 @@ Required properties: AM335x SoC's - "ti,am3352-lcdc", "ti,da830-lcdc" - reg: Address range of lcdc register set - interrupts: lcdc interrupt +- display-timings: list of different videomodes supported by the lcd + panel, represented as childs, can have multiple modes supported, if + only one, then it is considered native mode, if multiple modes are + provided, native mode can be set explicitly, more details available + @Documentation/devicetree/bindings/video/display-timing.txt Example: @@ -13,4 +18,19 @@ lcdc@4830e000 { compatible = "ti,am3352-lcdc", "ti,da830-lcdc"; reg = <0x4830e000 0x1000>; interrupts = <36>; + display-timings { + 800x480p62 { + clock-frequency = <30000000>; + hactive = <800>; + vactive = <480>; + hfront-porch = <39>; + hback-porch = <39>; + hsync-len = <47>; + vback-porch = <29>; + vfront-porch = <13>; + vsync-len = <2>; + hsync-active = <1>; + vsync-active = <1>; + }; + }; }; diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c index 68ae925..94add01 100644 --- a/drivers/video/da8xx-fb.c +++ b/drivers/video/da8xx-fb.c @@ -1261,8 +1261,24 @@ static struct fb_videomode *da8xx_fb_get_videomode(struct platform_device *dev) { struct da8xx_lcdc_platform_data *fb_pdata = dev->dev.platform_data; struct fb_videomode *lcdc_info; + struct device_node *np = dev->dev.of_node; int i; + if (np) { + lcdc_info = devm_kzalloc(&dev->dev, + sizeof(struct fb_videomode), + GFP_KERNEL); + if (!lcdc_info) { + dev_err(&dev->dev, "memory allocation failed\n"); + return NULL; + } + if (of_get_fb_videomode(np, lcdc_info, 0)) { + dev_err(&dev->dev, "timings not available in DT\n"); + return NULL; + } + return lcdc_info; + } + for (i = 0, lcdc_info = known_lcd_panels; i < ARRAY_SIZE(known_lcd_panels); i++, lcdc_info++) { if (strcmp(fb_pdata->type, lcdc_info->name) == 0)