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media: i2c: mt9m114: use fsleep() in place of udelay()

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With clang-16, building without COMMON_CLK triggers a range check on
udelay() because of a constant division-by-zero calculation:

ld.lld: error: undefined symbol: __bad_udelay
>>> referenced by mt9m114.c
>>>               drivers/media/i2c/mt9m114.o:(mt9m114_power_on) in archive vmlinux.a

In this configuration, the driver already fails to probe, before
this function gets called, so it's enough to suppress the assertion.

Do this by using fsleep(), which turns long delays into sleep() calls
in place of the link failure.

This is probably a good idea regardless to avoid overly long dynamic
udelay() calls on a slow clock.

Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Fixes: 24d756e914 ("media: i2c: Add driver for onsemi MT9M114 camera sensor")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
This commit is contained in:
Arnd Bergmann 2023-12-13 12:23:07 +01:00 committed by Hans Verkuil
parent 80c2b40a51
commit 02d4e62ae2
1 changed files with 1 additions and 1 deletions
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2
drivers/media/i2c/mt9m114.c
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@ -2132,7 +2132,7 @@ static int mt9m114_power_on(struct mt9m114 *sensor)
duration = DIV_ROUND_UP(2 * 50 * 1000000, freq);
gpiod_set_value(sensor->reset, 1);
udelay(duration);
fsleep(duration);
gpiod_set_value(sensor->reset, 0);
} else {
/*