| Message ID | 1406284115-489-1-git-send-email-m.olbrich@pengutronix.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c index 38ca88b..5213d13 100644 --- a/drivers/video/backlight/pwm_bl.c +++ b/drivers/video/backlight/pwm_bl.c @@ -211,6 +211,7 @@ static int pwm_backlight_probe(struct platform_device *pdev) dev_err(&pdev->dev, "failed to find platform data\n"); return ret; } + devdata.enable_gpio = -1; data = &defdata; }
Since 257462dbf3ed ("pwm-backlight: switch to gpiod interface") enable_gpio is no longer set and remains 0 when probing from device-tree. This is a valid gpio number. With no enable-gpios specified in the device-tree this is used and probing fails with: pwm-backlight lcd-backlight.3: failed to request GPIO#0: -16 Fix this by setting enable_gpio to -1 which is not a valid gpio number. Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de> --- drivers/video/backlight/pwm_bl.c | 1 + 1 file changed, 1 insertion(+)