diff options
| author | Sandor Yu <Sandor.yu@nxp.com> | 2018-01-04 17:19:51 +0800 |
|---|---|---|
| committer | Sandor Yu <Sandor.yu@nxp.com> | 2018-01-08 17:30:35 +0800 |
| commit | 1d1f404e219c3335ff0e0dd23e8a5885c9166a81 (patch) | |
| tree | ff8e62d6c30fac3280d4c4c2fd1a6bbb587714f7 | |
| parent | 225e34c5422db1612e50446afb93deb51308e2ba (diff) | |
MLK-17341-1: max9286: Add power up pin setting
Add power up pin setting for max9286 driver.
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Sandor Yu <Sandor.yu@nxp.com>
(cherry picked from commit 3e1fee31a6fc31783c1ab68db1e1aed5ef3db994)
| -rw-r--r-- | drivers/media/platform/imx8/max9286.c | 13 | ||||
| -rw-r--r-- | drivers/media/platform/imx8/max9286.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/drivers/media/platform/imx8/max9286.c b/drivers/media/platform/imx8/max9286.c index d3b83fcf423a..73841a8ce8eb 100644 --- a/drivers/media/platform/imx8/max9286.c +++ b/drivers/media/platform/imx8/max9286.c @@ -2821,6 +2821,17 @@ static int max9286_probe(struct i2c_client *client, return retval; } + /* request power down pin */ + max9286_data->pwn_gpio = of_get_named_gpio(dev->of_node, "pwn-gpios", 0); + if (!gpio_is_valid(max9286_data->pwn_gpio)) { + dev_err(dev, "no sensor pwdn pin available\n"); + return -ENODEV; + } + retval = devm_gpio_request_one(dev, max9286_data->pwn_gpio, GPIOF_OUT_INIT_HIGH, + "max9286_pwd"); + if (retval < 0) + return retval; + clk_prepare_enable(max9286_data->sensor_clk); max9286_data->i2c_client = client; @@ -2844,6 +2855,7 @@ static int max9286_probe(struct i2c_client *client, if (retval != 0x40) { pr_warning("max9286 is not found, chip id reg 0x1e = 0x%x.\n", retval); clk_disable_unprepare(max9286_data->sensor_clk); + devm_gpio_free(dev, max9286_data->pwn_gpio); return -ENODEV; } @@ -2852,6 +2864,7 @@ static int max9286_probe(struct i2c_client *client, if (max9286_data->sensor_num == 0) { pr_warning("cameras are not found,\n"); clk_disable_unprepare(max9286_data->sensor_clk); + devm_gpio_free(dev, max9286_data->pwn_gpio); return -ENODEV; } diff --git a/drivers/media/platform/imx8/max9286.h b/drivers/media/platform/imx8/max9286.h index bf4bf98ad5fd..8688b869e45a 100644 --- a/drivers/media/platform/imx8/max9286.h +++ b/drivers/media/platform/imx8/max9286.h @@ -84,5 +84,6 @@ struct sensor_data { unsigned int sensor_num; /* sensor num connect max9271 */ unsigned char sensor_is_there; /* Bit 0~3 for 4 cameras, 0b1= is there; 0b0 = is not there */ + int pwn_gpio; }; #endif |