diff options
| author | Guoniu.Zhou <guoniu.zhou@nxp.com> | 2018-11-14 13:53:38 +0800 |
|---|---|---|
| committer | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2019-05-01 17:43:10 +0100 |
| commit | 72218162f9cde5672593ff896042eecfb56fea50 (patch) | |
| tree | 8ea9e623b9c63f2c05b8ad1232f6cc31ebbbb826 | |
| parent | b5a71cf3c1363fdede96883da579dfa54d0e3b14 (diff) | |
MLK-20403: max9286: add hardware reset for max9286
Add hardware reset for max9286 before initialization
Signed-off-by: Guoniu.Zhou <guoniu.zhou@nxp.com>
(cherry picked from commit dfc5061564b7d13d875f46bb883fe2e88a91e475)
| -rw-r--r-- | drivers/media/platform/imx8/max9286.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/platform/imx8/max9286.c b/drivers/media/platform/imx8/max9286.c index 85fc9712c232..1b71c652873a 100644 --- a/drivers/media/platform/imx8/max9286.c +++ b/drivers/media/platform/imx8/max9286.c @@ -2470,6 +2470,14 @@ static void max9271_dump_registers(struct sensor_data *max9286_data, int index) } #endif +static void max9286_hw_reset(struct sensor_data *max9286_data) +{ + gpio_set_value(max9286_data->pwn_gpio, 0); + udelay(200); + gpio_set_value(max9286_data->pwn_gpio, 1); + msleep(1); +} + static int max9286_hardware_preinit(struct sensor_data *max9286_data) { u8 reg; @@ -3216,6 +3224,8 @@ static int max9286_probe(struct i2c_client *client, if (retval < 0) return retval; + max9286_hw_reset(max9286_data); + clk_prepare_enable(max9286_data->sensor_clk); max9286_data->i2c_client = client; |