Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752777Ab3EZMwa (ORCPT ); Sun, 26 May 2013 08:52:30 -0400 Received: from mail-wg0-f46.google.com ([74.125.82.46]:62402 "EHLO mail-wg0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752488Ab3EZMw2 (ORCPT ); Sun, 26 May 2013 08:52:28 -0400 MIME-Version: 1.0 In-Reply-To: <1369572037-10200-1-git-send-email-prabhakar.csengg@gmail.com> References: <1369572037-10200-1-git-send-email-prabhakar.csengg@gmail.com> From: Prabhakar Lad Date: Sun, 26 May 2013 18:22:06 +0530 Message-ID: Subject: Re: [PATCH v4] media: i2c: tvp514x: add OF support To: Hans Verkuil , Mauro Carvalho Chehab , LMML , Laurent Pinchart Cc: DLOS , LKML , "Lad, Prabhakar" , Guennadi Liakhovetski , Sylwester Nawrocki , Sakari Ailus , Grant Likely , Rob Herring , Rob Landley , devicetree-discuss@lists.ozlabs.org, linux-doc@vger.kernel.org Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5247 Lines: 142 Hi All, On Sun, May 26, 2013 at 6:10 PM, Prabhakar Lad wrote: > 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; > + Ahh this had to be return NULL I'll respin a new version fixing it. Regards, --Prabhakar Lad -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/