linux/drivers/video
Lothar Waßmann 937222c4dd pwm-backlight: Fix bogus request for GPIO#0 when instantiated from DT
commit 257462dbf3 ("pwm-backlight: switch to gpiod interface")
introduced a regression leading to acquiring a bogus GPIO-0 when
configured from DT without an 'enable-gpios' property.
The driver will happily accept the 0 initialized 'enable_gpio' member
of the struct platform_pwm_backlight_data as valid gpio number, and
request this GPIO as enable pin. In case of multiple driver instances,
the second will fail to register with the error message:
pwm-backlight backlight1.23: failed to request GPIO#0: -16

Fix this by setting enable_gpio in the pdata struct to -EINVAL.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-08-20 13:23:00 +01:00
..
backlight pwm-backlight: Fix bogus request for GPIO#0 when instantiated from DT 2014-08-20 13:23:00 +01:00
console Merge tag 'drm-intel-fixes-2014-06-17' of git://anongit.freedesktop.org/drm-intel into drm-next 2014-06-19 10:54:35 +10:00
fbdev PCI: Remove DEFINE_PCI_DEVICE_TABLE macro use 2014-08-12 12:15:14 -06:00
logo x86, platforms: Remove SGI Visual Workstation 2014-02-27 08:07:39 -08:00
display_timing.c video: add display_timing and videomode 2013-01-24 09:03:04 +01:00
hdmi.c video/hdmi: Rename HDMI_IDENTIFIER to HDMI_IEEE_OUI 2013-08-30 08:42:01 +10:00
Kconfig gpu: ipu-v3: Move i.MX IPUv3 core driver out of staging 2014-06-04 11:06:52 +02:00
Makefile video: move fbdev to drivers/video/fbdev 2014-04-17 08:10:19 +03:00
of_display_timing.c video: of: display_timing: fix default native-mode setting 2014-05-23 13:31:19 +03:00
of_videomode.c videomode: videomode_from_timing work 2013-03-21 14:34:33 +02:00
vgastate.c
videomode.c videomode: videomode_from_timing work 2013-03-21 14:34:33 +02:00