diff options
| author |   Michal Vokáč <michal.vokac@ysoft.com> | 2018-10-08 12:57:36 +0200 |
|---|---|---|
| committer |   Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> | 2018-10-08 12:57:36 +0200 |
| commit | 7d1b8d7a858024bd6a1dca206646fbcab5785220 (patch) | |
| tree | d55486adb10ea1ca2c9dfd66a937dab4954284d7 | |
| parent | fbdev: fix broken menu dependencies (diff) | |
| download | wireguard-linux-7d1b8d7a858024bd6a1dca206646fbcab5785220.tar.xz wireguard-linux-7d1b8d7a858024bd6a1dca206646fbcab5785220.zip | |
video: ssd1307fb: Use gpiod_set_value_cansleep() for reset
The reset signal can be produced by GPIO expander that can sleep.
In that case the probe function fails. Allow using GPIO expanders for
the reset signal by using the non-atomic gpiod_set_value_cansleep()
function.
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Rob Herring <robh+dt@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
| -rw-r--r-- | drivers/video/fbdev/ssd1307fb.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c index 6439231f2db2..4061a20cfe24 100644 --- a/drivers/video/fbdev/ssd1307fb.c +++ b/drivers/video/fbdev/ssd1307fb.c @@ -667,9 +667,9 @@ static int ssd1307fb_probe(struct i2c_client *client, if (par->reset) { /* Reset the screen */ - gpiod_set_value(par->reset, 0); + gpiod_set_value_cansleep(par->reset, 0); udelay(4); - gpiod_set_value(par->reset, 1); + gpiod_set_value_cansleep(par->reset, 1); udelay(4); } |