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[media] media: i2c: adv7343: add OF support

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add OF support for the adv7343 driver.

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Lad, Prabhakar 2013-07-20 02:21:06 -03:00 committed by Mauro Carvalho Chehab
parent 5e95814ff3
commit 187d42d6da
2 changed files with 93 additions and 1 deletions
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48
Documentation/devicetree/bindings/media/i2c/adv7343.txt Normal file
View File

@ -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>;
};
};
};
...
};

46
drivers/media/i2c/adv7343.c
View File

@ -30,6 +30,7 @@
#include <media/v4l2-async.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-of.h>
#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",
},