| Message ID | 20180709152106.990066-1-arnd@arndb.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
Den 09.07.2018 17.20, skrev Arnd Bergmann: > This tinydrm driver fails to link without the backlight support: > > drivers/gpu/drm/tinydrm/ili9341.o: In function `ili9341_probe': > ili9341.c:(.text+0x578): undefined reference to `devm_of_find_backlight' > > Fixes: 3fa0e8f6f960 ("drm/tinydrm: new driver for ILI9341 display panels") > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > --- > drivers/gpu/drm/tinydrm/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/gpu/drm/tinydrm/Kconfig b/drivers/gpu/drm/tinydrm/Kconfig > index 7a8008b0783f..16f4b5c91f1b 100644 > --- a/drivers/gpu/drm/tinydrm/Kconfig > +++ b/drivers/gpu/drm/tinydrm/Kconfig > @@ -23,6 +23,7 @@ config TINYDRM_ILI9225 > config TINYDRM_ILI9341 > tristate "DRM support for ILI9341 display panels" > depends on DRM_TINYDRM && SPI > + depends on BACKLIGHT_CLASS_DEVICE > select TINYDRM_MIPI_DBI > help > DRM driver for the following Ilitek ILI9341 panels: There was some work done to make backlight optional, but I see now that it failed to take into account the possibility of the driver being builtin and BACKLIGHT_CLASS_DEVICE being a module. This is from include/linux/backlight.h: #if IS_ENABLED(CONFIG_BACKLIGHT_CLASS_DEVICE) struct backlight_device *of_find_backlight(struct device *dev); struct backlight_device *devm_of_find_backlight(struct device *dev); #else static inline struct backlight_device *of_find_backlight(struct device *dev) { return NULL; } static inline struct backlight_device * devm_of_find_backlight(struct device *dev) { return NULL; } #endif Anyways, thanks for fixing this: Acked-by: Noralf Trønnes <noralf@tronnes.org> David Lechner do you apply this? Noralf.
On 07/10/2018 10:55 AM, Noralf Trønnes wrote: > > Anyways, thanks for fixing this: > Acked-by: Noralf Trønnes <noralf@tronnes.org> > > David Lechner do you apply this? > > Noralf. > Yes, I will pick it up.
On 07/09/2018 10:20 AM, Arnd Bergmann wrote: > This tinydrm driver fails to link without the backlight support: > > drivers/gpu/drm/tinydrm/ili9341.o: In function `ili9341_probe': > ili9341.c:(.text+0x578): undefined reference to `devm_of_find_backlight' > > Fixes: 3fa0e8f6f960 ("drm/tinydrm: new driver for ILI9341 display panels") > Signed-off-by: Arnd Bergmann <arnd@arndb.de> > --- applied to drm-misc-next. thanks
diff --git a/drivers/gpu/drm/tinydrm/Kconfig b/drivers/gpu/drm/tinydrm/Kconfig index 7a8008b0783f..16f4b5c91f1b 100644 --- a/drivers/gpu/drm/tinydrm/Kconfig +++ b/drivers/gpu/drm/tinydrm/Kconfig @@ -23,6 +23,7 @@ config TINYDRM_ILI9225 config TINYDRM_ILI9341 tristate "DRM support for ILI9341 display panels" depends on DRM_TINYDRM && SPI + depends on BACKLIGHT_CLASS_DEVICE select TINYDRM_MIPI_DBI help DRM driver for the following Ilitek ILI9341 panels:
This tinydrm driver fails to link without the backlight support: drivers/gpu/drm/tinydrm/ili9341.o: In function `ili9341_probe': ili9341.c:(.text+0x578): undefined reference to `devm_of_find_backlight' Fixes: 3fa0e8f6f960 ("drm/tinydrm: new driver for ILI9341 display panels") Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/gpu/drm/tinydrm/Kconfig | 1 + 1 file changed, 1 insertion(+)