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authorJacek Anaszewski <j.anaszewski@samsung.com>2014-08-20 15:41:55 +0200
committerBryan Wu <cooloney@gmail.com>2014-09-12 23:01:54 +0200
commit3ef7de5304edf60d0b8674dd7cdacc104e15a93c (patch)
tree2af483fbfc67853ce5c8b3772fadb93c872b0d35 /drivers/gpio
parentleds: trigger: gpio: fix warning in gpio trigger for gpios whose accessor fun... (diff)
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leds: Improve and export led_update_brightness
led_update_brightness helper function used to be exploited only locally in the led-class.c module, where its result was being passed to the brightness_show sysfs callback. With the introduction of v4l2-flash subdevice the same functionality becomes required for reading current brightness from a LED device. This patch adds checking of return value of the brightness_get callback and moves the led_update_brightness() function to the LED subsystem public API. Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Bryan Wu <cooloney@gmail.com>
Diffstat (limited to 'drivers/gpio')
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