Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755652Ab3DZNSY (ORCPT ); Fri, 26 Apr 2013 09:18:24 -0400 Received: from mail-pd0-f174.google.com ([209.85.192.174]:45231 "EHLO mail-pd0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753561Ab3DZNSW (ORCPT ); Fri, 26 Apr 2013 09:18:22 -0400 From: Prabhakar Lad To: LMML Cc: "Lad, Prabhakar" , Hans Verkuil , Laurent Pinchart , Mauro Carvalho Chehab , Guennadi Liakhovetski , Sylwester Nawrocki , Sakari Ailus , Grant Likely , Rob Herring , Rob Landley , devicetree-discuss@lists.ozlabs.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, davinci-linux-open-source@linux.davincidsp.com Subject: [PATCH] media: i2c: adv7343: add OF support Date: Fri, 26 Apr 2013 18:48:06 +0530 Message-Id: <1366982286-22950-1-git-send-email-prabhakar.csengg@gmail.com> X-Mailer: git-send-email 1.7.4.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7309 Lines: 220 From: Lad, Prabhakar add OF support for the adv7343 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 --- .../devicetree/bindings/media/i2c/adv7343.txt | 69 ++++++++++++++++++ drivers/media/i2c/adv7343.c | 75 +++++++++++++++++++- 2 files changed, 142 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/media/i2c/adv7343.txt diff --git a/Documentation/devicetree/bindings/media/i2c/adv7343.txt b/Documentation/devicetree/bindings/media/i2c/adv7343.txt new file mode 100644 index 0000000..8426f8d --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/adv7343.txt @@ -0,0 +1,69 @@ +* Analog Devices adv7343 video encoder + +The ADV7343 are high speed, digital-to-analog video encoders in a 64-lead LQFP +package. Six high speed, 3.3 V, 11-bit video DACs provide support for composite +(CVBS), S-Video (Y-C), and component (YPrPb/RGB) analog outputs in standard +definition (SD), enhanced definition (ED), or high definition (HD) video +formats. + +The ADV7343 have a 24-bit pixel input port that can be configured in a variety +of ways. SD video formats are supported over an SDR interface, and ED/HD video +formats are supported over SDR and DDR interfaces. Pixel data can be supplied +in either the YCrCb or RGB color spaces. + +Required Properties : +- compatible: Must be "ad,adv7343-encoder" + +Optional Properties : +- ad-adv7343-power-mode-sleep-mode: on enable the current consumption is + reduced to micro ampere level. All DACs and + the internal PLL circuit are disabled. +- ad-adv7343-power-mode-pll-ctrl: PLL and oversampling control. This control + allows internal PLL 1 circuit to be powered + down and the oversampling to beswitched off. +- ad-adv7343-power-mode-dac-1: power on/off DAC 1. +- ad-adv7343-power-mode-dac-2: power on/off DAC 2. +- ad-adv7343-power-mode-dac-3: power on/off DAC 3. +- ad-adv7343-power-mode-dac-4: power on/off DAC 4. +- ad-adv7343-power-mode-dac-5: power on/off DAC 5. +- ad-adv7343-power-mode-dac-6: power on/off DAC 6. +- ad-adv7343-sd-config-dac-out-1: Configure SD DAC Output 1. +- ad-adv7343-sd-config-dac-out-2: Configure SD DAC Output 2. + +Example: + +i2c0@1c22000 { + ... + ... + + adv7343@2a { + compatible = "ad,adv7343-encoder"; + reg = <0x2a>; + + port { + adv7343_1: endpoint { + /* Active high (Defaults to false) */ + ad-adv7343-power-mode-sleep-mode; + /* Active high (Defaults to false) */ + ad-adv7343-power-mode-pll-ctrl; + /* Active high (Defaults to false) */ + ad-adv7343-power-mode-dac-1; + /* Active high (Defaults to false) */ + ad-adv7343-power-mode-dac-2; + /* Active high (Defaults to false) */ + ad-adv7343-power-mode-dac-3; + /* Active high (Defaults to false) */ + ad-adv7343-power-mode-dac-4; + /* Active high (Defaults to false) */ + ad-adv7343-power-mode-dac-5; + /* Active high (Defaults to false) */ + ad-adv7343-power-mode-dac-6; + /* Active high (Defaults to false) */ + ad-adv7343-sd-config-dac-out-1; + /* Active high (Defaults to false) */ + ad-adv7343-sd-config-dac-out-2 = <0>; + }; + }; + }; + ... +}; diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c index 469e262..eb12d1a 100644 --- a/drivers/media/i2c/adv7343.c +++ b/drivers/media/i2c/adv7343.c @@ -25,12 +25,14 @@ #include #include #include +#include #include #include #include #include #include +#include #include "adv7343_regs.h" @@ -409,6 +411,75 @@ static int adv7343_initialize(struct v4l2_subdev *sd) return err; } +#if defined(CONFIG_OF) +static const struct of_device_id adv7343_of_match[] = { + {.compatible = "ad,adv7343-encoder", }, + {}, +}; +MODULE_DEVICE_TABLE(of, adv7343_of_match); + +static void adv7343_get_pdata(struct i2c_client *client, + struct adv7343_state *decoder) +{ + if (!client->dev.platform_data && client->dev.of_node) { + struct device_node *np; + struct adv7343_platform_data *pdata; + + np = v4l2_of_get_next_endpoint(client->dev.of_node, NULL); + if (!np) + return; + + pdata = devm_kzalloc(&client->dev, + sizeof(struct adv7343_platform_data), + GFP_KERNEL); + if (!pdata) { + pr_warn("adv7343 failed allocate memeory\n"); + return; + } + + pdata->mode_config.sleep_mode = + of_property_read_bool(np, "ad-adv7343-power-mode-sleep-mode"); + + pdata->mode_config.pll_control = + of_property_read_bool(np, "ad-adv7343-power-mode-pll-ctrl"); + + pdata->mode_config.dac_1 = + of_property_read_bool(np, "ad-adv7343-power-mode-dac-1"); + + pdata->mode_config.dac_2 = + of_property_read_bool(np, "ad-adv7343-power-mode-dac-2"); + + pdata->mode_config.dac_3 = + of_property_read_bool(np, "ad-adv7343-power-mode-dac-3"); + + pdata->mode_config.dac_4 = + of_property_read_bool(np, "ad-adv7343-power-mode-dac-4"); + + pdata->mode_config.dac_5 = + of_property_read_bool(np, "ad-adv7343-power-mode-dac-5"); + + pdata->mode_config.dac_6 = + of_property_read_bool(np, "ad-adv7343-power-mode-dac-6"); + + pdata->sd_config.sd_dac_out1 = + of_property_read_bool(np, "ad-adv7343-sd-config-dac-out-1"); + + pdata->sd_config.sd_dac_out2 = + of_property_read_bool(np, "ad-adv7343-sd-config-dac-out-2"); + + decoder->pdata = pdata; + } +} +#else +#define adv7343_of_match NULL + +static void adv7343_get_pdata(struct i2c_client *client, + struct adv7343_state *decoder) +{ + decoder->pdata = client->dev.platform_data; +} +#endif + static int adv7343_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -426,8 +497,7 @@ static int adv7343_probe(struct i2c_client *client, if (state == NULL) return -ENOMEM; - /* Copy board specific information here */ - state->pdata = client->dev.platform_data; + adv7343_get_pdata(client, state); state->reg00 = 0x80; state->reg01 = 0x00; @@ -496,6 +566,7 @@ MODULE_DEVICE_TABLE(i2c, adv7343_id); static struct i2c_driver adv7343_driver = { .driver = { + .of_match_table = adv7343_of_match, .owner = THIS_MODULE, .name = "adv7343", }, -- 1.7.4.1 -- 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/