diff options
Diffstat (limited to 'drivers/media/i2c/ar0521.c')
| -rw-r--r-- | drivers/media/i2c/ar0521.c | 22 |
1 files changed, 16 insertions, 6 deletions
diff --git a/drivers/media/i2c/ar0521.c b/drivers/media/i2c/ar0521.c index 09331cf95c62..fc27238dd4d3 100644 --- a/drivers/media/i2c/ar0521.c +++ b/drivers/media/i2c/ar0521.c @@ -835,21 +835,30 @@ static const struct initial_reg { be(0x0707)), /* 3F44: couple k factor 2 */ }; -static int ar0521_power_off(struct device *dev) +static void __ar0521_power_off(struct device *dev) { struct v4l2_subdev *sd = dev_get_drvdata(dev); struct ar0521_dev *sensor = to_ar0521_dev(sd); int i; - clk_disable_unprepare(sensor->extclk); - if (sensor->reset_gpio) - gpiod_set_value(sensor->reset_gpio, 1); /* assert RESET signal */ + /* assert RESET signal */ + gpiod_set_value_cansleep(sensor->reset_gpio, 1); for (i = ARRAY_SIZE(ar0521_supply_names) - 1; i >= 0; i--) { if (sensor->supplies[i]) regulator_disable(sensor->supplies[i]); } +} + +static int ar0521_power_off(struct device *dev) +{ + struct v4l2_subdev *sd = dev_get_drvdata(dev); + struct ar0521_dev *sensor = to_ar0521_dev(sd); + + clk_disable_unprepare(sensor->extclk); + __ar0521_power_off(dev); + return 0; } @@ -878,7 +887,7 @@ static int ar0521_power_on(struct device *dev) if (sensor->reset_gpio) /* deassert RESET signal */ - gpiod_set_value(sensor->reset_gpio, 0); + gpiod_set_value_cansleep(sensor->reset_gpio, 0); usleep_range(4500, 5000); /* min 45000 clocks */ for (cnt = 0; cnt < ARRAY_SIZE(initial_regs); cnt++) { @@ -908,7 +917,8 @@ static int ar0521_power_on(struct device *dev) return 0; off: - ar0521_power_off(dev); + clk_disable_unprepare(sensor->extclk); + __ar0521_power_off(dev); return ret; } |