From 187d42d6da62aa3eb3d76866584382625f141b3c Mon Sep 17 00:00:00 2001 From: "Lad, Prabhakar" Date: Sat, 20 Jul 2013 02:21:06 -0300 Subject: [PATCH] [media] media: i2c: adv7343: add OF support add OF support for the adv7343 driver. Signed-off-by: Lad, Prabhakar Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- .../devicetree/bindings/media/i2c/adv7343.txt | 48 +++++++++++++++++++ drivers/media/i2c/adv7343.c | 46 +++++++++++++++++- 2 files changed, 93 insertions(+), 1 deletion(-) 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 000000000000..5653bc2428b8 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/adv7343.txt @@ -0,0 +1,48 @@ +* 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. + +Required Properties : +- compatible: Must be "adi,adv7343" + +Optional Properties : +- adi,power-mode-sleep-mode: on enable the current consumption is reduced to + micro ampere level. All DACs and the internal PLL + circuit are disabled. +- adi,power-mode-pll-ctrl: PLL and oversampling control. This control allows + internal PLL 1 circuit to be powered down and the + oversampling to be switched off. +- ad,adv7343-power-mode-dac: array configuring the power on/off DAC's 1..6, + 0 = OFF and 1 = ON, Default value when this + property is not specified is <0 0 0 0 0 0>. +- ad,adv7343-sd-config-dac-out: array configure SD DAC Output's 1 and 2, 0 = OFF + and 1 = ON, Default value when this property is + not specified is <0 0>. + +Example: + +i2c0@1c22000 { + ... + ... + + adv7343@2a { + compatible = "adi,adv7343"; + reg = <0x2a>; + + port { + adv7343_1: endpoint { + adi,power-mode-sleep-mode; + adi,power-mode-pll-ctrl; + /* Use DAC1..3, DAC6 */ + adi,dac-enable = <1 1 1 0 0 1>; + /* Use SD DAC output 1 */ + adi,sd-dac-enable = <1 0>; + }; + }; + }; + ... +}; diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c index f0238fb3e3e2..aeb56c53e39f 100644 --- a/drivers/media/i2c/adv7343.c +++ b/drivers/media/i2c/adv7343.c @@ -30,6 +30,7 @@ #include #include #include +#include #include "adv7343_regs.h" @@ -399,6 +400,40 @@ static int adv7343_initialize(struct v4l2_subdev *sd) return err; } +static struct adv7343_platform_data * +adv7343_get_pdata(struct i2c_client *client) +{ + struct adv7343_platform_data *pdata; + struct device_node *np; + + if (!IS_ENABLED(CONFIG_OF) || !client->dev.of_node) + return client->dev.platform_data; + + np = v4l2_of_get_next_endpoint(client->dev.of_node, NULL); + if (!np) + return NULL; + + pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + goto done; + + pdata->mode_config.sleep_mode = + of_property_read_bool(np, "adi,power-mode-sleep-mode"); + + pdata->mode_config.pll_control = + of_property_read_bool(np, "adi,power-mode-pll-ctrl"); + + of_property_read_u32_array(np, "adi,dac-enable", + pdata->mode_config.dac, 6); + + of_property_read_u32_array(np, "adi,sd-dac-enable", + pdata->sd_config.sd_dac_out, 2); + +done: + of_node_put(np); + return pdata; +} + static int adv7343_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -417,7 +452,7 @@ static int adv7343_probe(struct i2c_client *client, return -ENOMEM; /* Copy board specific information here */ - state->pdata = client->dev.platform_data; + state->pdata = adv7343_get_pdata(client); state->reg00 = 0x80; state->reg01 = 0x00; @@ -483,8 +518,17 @@ static const struct i2c_device_id adv7343_id[] = { MODULE_DEVICE_TABLE(i2c, adv7343_id); +#if IS_ENABLED(CONFIG_OF) +static const struct of_device_id adv7343_of_match[] = { + {.compatible = "adi,adv7343", }, + { /* sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, adv7343_of_match); +#endif + static struct i2c_driver adv7343_driver = { .driver = { + .of_match_table = of_match_ptr(adv7343_of_match), .owner = THIS_MODULE, .name = "adv7343", }, -- 2.20.1