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shcgitgregkh
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media: i2c: ar0521: Use cansleep version of gpiod_set_value()
commit bee1aed upstream. If we use GPIO reset from I2C port expander, we must use *_cansleep() variant of GPIO functions. This was not done in ar0521_power_on()/ar0521_power_off() functions. Let's fix that. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 11 at drivers/gpio/gpiolib.c:3496 gpiod_set_value+0x74/0x7c Modules linked in: CPU: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.10.0 #53 Hardware name: Diasom DS-RK3568-SOM-EVB (DT) Workqueue: events_unbound deferred_probe_work_func pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : gpiod_set_value+0x74/0x7c lr : ar0521_power_on+0xcc/0x290 sp : ffffff8001d7ab70 x29: ffffff8001d7ab70 x28: ffffff80027dcc90 x27: ffffff8003c82000 x26: ffffff8003ca9250 x25: ffffffc080a39c60 x24: ffffff8003ca9088 x23: ffffff8002402720 x22: ffffff8003ca9080 x21: ffffff8003ca9088 x20: 0000000000000000 x19: ffffff8001eb2a00 x18: ffffff80efeeac80 x17: 756d2d6332692f30 x16: 0000000000000000 x15: 0000000000000000 x14: ffffff8001d91d40 x13: 0000000000000016 x12: ffffffc080e98930 x11: ffffff8001eb2880 x10: 0000000000000890 x9 : ffffff8001d7a9f0 x8 : ffffff8001d92570 x7 : ffffff80efeeac80 x6 : 000000003fc6e780 x5 : ffffff8001d91c80 x4 : 0000000000000002 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 0000000000000001 Call trace: gpiod_set_value+0x74/0x7c ar0521_power_on+0xcc/0x290 ... Signed-off-by: Alexander Shiyan <[email protected]> Fixes: 852b50a ("media: On Semi AR0521 sensor driver") Cc: [email protected] Acked-by: Krzysztof Hałasa <[email protected]> Signed-off-by: Sakari Ailus <[email protected]> Signed-off-by: Hans Verkuil <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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drivers/media/i2c/ar0521.c

Lines changed: 3 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -844,7 +844,8 @@ static int ar0521_power_off(struct device *dev)
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clk_disable_unprepare(sensor->extclk);
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846846
if (sensor->reset_gpio)
847-
gpiod_set_value(sensor->reset_gpio, 1); /* assert RESET signal */
847+
/* assert RESET signal */
848+
gpiod_set_value_cansleep(sensor->reset_gpio, 1);
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849850
for (i = ARRAY_SIZE(ar0521_supply_names) - 1; i >= 0; i--) {
850851
if (sensor->supplies[i])
@@ -878,7 +879,7 @@ static int ar0521_power_on(struct device *dev)
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879880
if (sensor->reset_gpio)
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/* deassert RESET signal */
881-
gpiod_set_value(sensor->reset_gpio, 0);
882+
gpiod_set_value_cansleep(sensor->reset_gpio, 0);
882883
usleep_range(4500, 5000); /* min 45000 clocks */
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884885
for (cnt = 0; cnt < ARRAY_SIZE(initial_regs); cnt++) {

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