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author | Matthieu CASTET <matthieu.castet@parrot.com> | 2017-12-12 11:10:44 +0100 |
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committer | Jacek Anaszewski <jacek.anaszewski@gmail.com> | 2017-12-27 20:45:07 +0100 |
commit | 2b83ff96f51d0b039c4561b9f95c824d7bddb85c (patch) | |
tree | 931cbdf5b56e15e191a7ccf449aa126f3f5b30ea /drivers/gpio/Kconfig | |
parent | 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323 (diff) |
led: core: Fix brightness setting when setting delay_off=0
With the current code, the following sequence won't work :
echo timer > trigger
echo 0 > delay_off
* at this point we call
** led_delay_off_store
** led_blink_set
*** stop timer
** led_blink_setup
** led_set_software_blink
*** if !delay_on, led off
*** if !delay_off, set led_set_brightness_nosleep <--- LED_BLINK_SW is set but timer is stop
*** otherwise start timer/set LED_BLINK_SW flag
echo xxx > brightness
* led_set_brightness
** if LED_BLINK_SW
*** if brightness=0, led off
*** else apply brightness if next timer <--- timer is stop, and will never apply new setting
** otherwise set led_set_brightness_nosleep
To fix that, when we delete the timer, we should clear LED_BLINK_SW.
Cc: linux-leds@vger.kernel.org
Signed-off-by: Matthieu CASTET <matthieu.castet@parrot.com>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Diffstat (limited to 'drivers/gpio/Kconfig')
0 files changed, 0 insertions, 0 deletions