From patchwork Sun May 26 12:40:37 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prabhakar X-Patchwork-Id: 2615281 Return-Path: X-Original-To: patchwork-davinci@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork1.kernel.org Received: from bear.ext.ti.com (bear.ext.ti.com [192.94.94.41]) by patchwork1.kernel.org (Postfix) with ESMTP id 2B8BF3FD2B for ; Sun, 26 May 2013 12:41:23 +0000 (UTC) Received: from dflxv15.itg.ti.com ([128.247.5.124]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id r4QCfMdW024383 for ; Sun, 26 May 2013 07:41:22 -0500 Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id r4QCfMQ4011135 for ; Sun, 26 May 2013 07:41:22 -0500 Received: from dlelxv24.itg.ti.com (172.17.1.199) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.2.342.3; Sun, 26 May 2013 07:41:21 -0500 Received: from linux.omap.com (dlelxs01.itg.ti.com [157.170.227.31]) by dlelxv24.itg.ti.com (8.13.8/8.13.8) with ESMTP id r4QCfLtE010648 for ; Sun, 26 May 2013 07:41:21 -0500 Received: from linux.omap.com (localhost [127.0.0.1]) by linux.omap.com (Postfix) with ESMTP id E9F7580626 for ; Sun, 26 May 2013 07:41:21 -0500 (CDT) X-Original-To: davinci-linux-open-source@linux.davincidsp.com Delivered-To: davinci-linux-open-source@linux.davincidsp.com Received: from dflp52.itg.ti.com (dflp52.itg.ti.com [128.247.22.96]) by linux.omap.com (Postfix) with ESMTP id 7A1E880626 for ; Sun, 26 May 2013 07:41:12 -0500 (CDT) Received: from white.ext.ti.com (white.ext.ti.com [192.94.93.38]) by dflp52.itg.ti.com (8.13.7/8.13.8) with ESMTP id r4QCfCnV009345 for ; Sun, 26 May 2013 07:41:12 -0500 (CDT) Received: from mail6.bemta7.messagelabs.com (mail6.bemta7.messagelabs.com [216.82.255.55]) by white.ext.ti.com (8.13.7/8.13.7) with ESMTP id r4QCfBGK025846 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Sun, 26 May 2013 07:41:12 -0500 Received: from [216.82.253.163:7615] by server-4.bemta-7.messagelabs.com id 0E/7D-04977-7E202A15; Sun, 26 May 2013 12:41:11 +0000 X-Env-Sender: prabhakar.csengg@gmail.com X-Msg-Ref: server-15.tower-166.messagelabs.com!1369572070!13351066!1 X-Originating-IP: [209.85.220.44] X-SpamReason: No, hits=0.5 required=7.0 tests=BODY_RANDOM_LONG, ML_RADAR_SPEW_LINKS_14,spamassassin: X-StarScan-Received: X-StarScan-Version: 6.9.6; banners=-,-,- X-VirusChecked: Checked Received: (qmail 8849 invoked from network); 26 May 2013 12:41:10 -0000 Received: from mail-pa0-f44.google.com (HELO mail-pa0-f44.google.com) (209.85.220.44) by server-15.tower-166.messagelabs.com with RC4-SHA encrypted SMTP; 26 May 2013 12:41:10 -0000 Received: by mail-pa0-f44.google.com with SMTP id wp1so3334091pac.17 for ; Sun, 26 May 2013 05:41:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:x-mailer; bh=Pt7bIt0WsyqZQ6FZ/AEly5CRN8QVIfRD0bo26Ixw8FA=; b=D6b6FEiY33FGZcDT8mf43sSmJS2RsotZ6J7XgF40kA11rjLT7xtQCNYjd2CZ2CbQk4 Mw8JSJMIyJU2EhZdkPk4vHDuYfQ5T6KlD55AHRliK8QEV07uPyJrr7opQvEap90m/6B9 SONnEgsqm5P0kvaMjiDxqZ66o63/2v8M4ff5fVPfeEW4OhBKazIxOwI3OQHyeQJxDWdC zgrClxbgTh2HrGkfHtRDqo6jBeKJQuZ8BdyNHqrNljISOuuvYLJs5suE5w71R3N/IsNV UXcA9shJpzHjfRvgakYv2bcIfl8wYqPfo3fneOjZFKssDRTedFZ5TyWmwJ/fHmBavea/ AG0A== X-Received: by 10.66.26.52 with SMTP id i20mr19446212pag.209.1369572069788; Sun, 26 May 2013 05:41:09 -0700 (PDT) Received: from localhost.localdomain ([112.79.42.34]) by mx.google.com with ESMTPSA id un15sm24420653pab.7.2013.05.26.05.40.50 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Sun, 26 May 2013 05:41:08 -0700 (PDT) From: Prabhakar Lad To: Hans Verkuil , Mauro Carvalho Chehab , LMML , Laurent Pinchart Subject: [PATCH v4] media: i2c: tvp514x: add OF support Date: Sun, 26 May 2013 18:10:37 +0530 Message-ID: <1369572037-10200-1-git-send-email-prabhakar.csengg@gmail.com> X-Mailer: git-send-email 1.7.0.4 CC: Rob Landley , DLOS , Mauro Carvalho Chehab , , , LKML , Rob Herring , Grant Likely , Hans Verkuil , Laurent Pinchart , Sylwester Nawrocki , Sakari Ailus , Guennadi Liakhovetski X-BeenThere: davinci-linux-open-source@linux.davincidsp.com X-Mailman-Version: 2.1.12 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: Errors-To: davinci-linux-open-source-bounces+patchwork-davinci=patchwork.kernel.org@linux.davincidsp.com From: Lad, Prabhakar add OF support for the tvp514x driver. Signed-off-by: Lad, Prabhakar Cc: Hans Verkuil Cc: Laurent Pinchart Cc: Mauro Carvalho Chehab Cc: Guennadi Liakhovetski Cc: Sylwester Nawrocki Cc: Sakari Ailus Cc: Grant Likely Cc: Rob Herring Cc: Rob Landley Cc: devicetree-discuss@lists.ozlabs.org Cc: linux-doc@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: davinci-linux-open-source@linux.davincidsp.com --- Tested on da850-evm. RFC v1: https://patchwork.kernel.org/patch/2030061/ RFC v2: https://patchwork.kernel.org/patch/2061811/ Changes for current version from RFC v2: 1: Fixed review comments pointed by Sylwester. Changes for v2: 1: Listed all the compatible property values in the documentation text file. 2: Removed "-decoder" from compatible property values. 3: Added a reference to the V4L2 DT bindings documentation to explain what the port and endpoint nodes are for. 4: Fixed some Nits pointed by Laurent. 5: Removed unnecessary header file includes and sort them alphabetically. Changes for v3: 1: Rebased on patch https://patchwork.kernel.org/patch/2539411/ Changes for v4: 1: added missing call for of_node_put(). 2: Rebased the patch on v3.11. .../devicetree/bindings/media/i2c/tvp514x.txt | 45 ++++++++++++++ drivers/media/i2c/tvp514x.c | 62 ++++++++++++++++++-- 2 files changed, 101 insertions(+), 6 deletions(-) create mode 100644 Documentation/devicetree/bindings/media/i2c/tvp514x.txt diff --git a/Documentation/devicetree/bindings/media/i2c/tvp514x.txt b/Documentation/devicetree/bindings/media/i2c/tvp514x.txt new file mode 100644 index 0000000..cc09424 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/tvp514x.txt @@ -0,0 +1,45 @@ +* Texas Instruments TVP514x video decoder + +The TVP5146/TVP5146m2/TVP5147/TVP5147m1 device is high quality, single-chip +digital video decoder that digitizes and decodes all popular baseband analog +video formats into digital video component. The tvp514x decoder supports analog- +to-digital (A/D) conversion of component RGB and YPbPr signals as well as A/D +conversion and decoding of NTSC, PAL and SECAM composite and S-video into +component YCbCr. + +Required Properties : +- compatible : value should be either one among the following + (a) "ti,tvp5146" for tvp5146 decoder. + (b) "ti,tvp5146m2" for tvp5146m2 decoder. + (c) "ti,tvp5147" for tvp5147 decoder. + (d) "ti,tvp5147m1" for tvp5147m1 decoder. + +- hsync-active: HSYNC Polarity configuration for endpoint. + +- vsync-active: VSYNC Polarity configuration for endpoint. + +- pclk-sample: Clock polarity of the endpoint. + + +For further reading of port node refer Documentation/devicetree/bindings/media/ +video-interfaces.txt. + +Example: + + i2c0@1c22000 { + ... + ... + tvp514x@5c { + compatible = "ti,tvp5146"; + reg = <0x5c>; + + port { + tvp514x_1: endpoint { + hsync-active = <1>; + vsync-active = <1>; + pclk-sample = <0>; + }; + }; + }; + ... + }; diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c index 7438e01..803f3b8 100644 --- a/drivers/media/i2c/tvp514x.c +++ b/drivers/media/i2c/tvp514x.c @@ -38,6 +38,7 @@ #include #include +#include #include #include #include @@ -1055,6 +1056,42 @@ static struct tvp514x_decoder tvp514x_dev = { }; +static struct tvp514x_platform_data * +tvp514x_get_pdata(struct i2c_client *client) +{ + struct tvp514x_platform_data *pdata = NULL; + struct v4l2_of_endpoint bus_cfg; + struct device_node *endpoint; + unsigned int flags; + + if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) + return client->dev.platform_data; + + endpoint = v4l2_of_get_next_endpoint(client->dev.of_node, NULL); + if (!endpoint) + goto done; + + pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + goto done; + + v4l2_of_parse_endpoint(endpoint, &bus_cfg); + flags = bus_cfg.bus.parallel.flags; + + if (flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) + pdata->hs_polarity = 1; + + if (flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) + pdata->vs_polarity = 1; + + if (flags & V4L2_MBUS_PCLK_SAMPLE_RISING) + pdata->clk_polarity = 1; + +done: + of_node_put(endpoint); + return pdata; +} + /** * tvp514x_probe() - decoder driver i2c probe handler * @client: i2c driver client device structure @@ -1066,19 +1103,20 @@ static struct tvp514x_decoder tvp514x_dev = { static int tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct tvp514x_platform_data *pdata = tvp514x_get_pdata(client); struct tvp514x_decoder *decoder; struct v4l2_subdev *sd; int ret; + if (pdata == NULL) { + dev_err(&client->dev, "No platform data\n"); + return -EINVAL; + } + /* Check if the adapter supports the needed features */ if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -EIO; - if (!client->dev.platform_data) { - v4l2_err(client, "No platform data!!\n"); - return -ENODEV; - } - decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL); if (!decoder) return -ENOMEM; @@ -1090,7 +1128,7 @@ tvp514x_probe(struct i2c_client *client, const struct i2c_device_id *id) sizeof(tvp514x_reg_list_default)); /* Copy board specific information here */ - decoder->pdata = client->dev.platform_data; + decoder->pdata = pdata; /** * Fetch platform specific data, and configure the @@ -1230,8 +1268,20 @@ static const struct i2c_device_id tvp514x_id[] = { MODULE_DEVICE_TABLE(i2c, tvp514x_id); +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id tvp514x_of_match[] = { + { .compatible = "ti,tvp5146", }, + { .compatible = "ti,tvp5146m2", }, + { .compatible = "ti,tvp5147", }, + { .compatible = "ti,tvp5147m1", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, tvp514x_of_match); +#endif + static struct i2c_driver tvp514x_driver = { .driver = { + .of_match_table = of_match_ptr(tvp514x_of_match), .owner = THIS_MODULE, .name = TVP514X_MODULE_NAME, },