The s6e8ax0 driver has a dependency on BACKLIGHT_CLASS_DEVICE, which can be configured as a loadable module, so we have to make the driver a tristate symbol as well, to avoid this error: drivers/built-in.o: In function `s6e8ax0_probe': :(.text+0x23a48): undefined reference to `devm_backlight_device_register' This also means we get another error from a missing export, which this fixes as well: ERROR: "exynos_mipi_dsi_register_lcd_driver" [drivers/video/fbdev/exynos/s6e8ax0.ko] undefined! The drivers are all written to be loadable modules already, except the Kconfig options for that are missing, which makes the patch really easy. Finally, the EXYNOS_VIDEO option is turned into tristate as well for good measure, as all framebuffer drivers should be configurable as modules, though this change is not strictly necessary. Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx> --- drivers/video/fbdev/exynos/Kconfig | 6 +++--- drivers/video/fbdev/exynos/Makefile | 6 ++++-- drivers/video/fbdev/exynos/exynos_mipi_dsi.c | 1 + 3 files changed, 8 insertions(+), 5 deletions(-) v2: improved changelog after feedback from Paul Bolle diff --git a/drivers/video/fbdev/exynos/Kconfig b/drivers/video/fbdev/exynos/Kconfig index 1f16b4678c71..d916bef94f25 100644 --- a/drivers/video/fbdev/exynos/Kconfig +++ b/drivers/video/fbdev/exynos/Kconfig @@ -3,7 +3,7 @@ # menuconfig EXYNOS_VIDEO - bool "Exynos Video driver support" + tristate "Exynos Video driver support" depends on ARCH_S5PV210 || ARCH_EXYNOS help This enables support for EXYNOS Video device. @@ -15,13 +15,13 @@ if EXYNOS_VIDEO # config EXYNOS_MIPI_DSI - bool "EXYNOS MIPI DSI driver support." + tristate "EXYNOS MIPI DSI driver support." select GENERIC_PHY help This enables support for MIPI-DSI device. config EXYNOS_LCD_S6E8AX0 - bool "S6E8AX0 MIPI AMOLED LCD Driver" + tristate "S6E8AX0 MIPI AMOLED LCD Driver" depends on EXYNOS_MIPI_DSI && BACKLIGHT_CLASS_DEVICE depends on (LCD_CLASS_DEVICE = y) default n diff --git a/drivers/video/fbdev/exynos/Makefile b/drivers/video/fbdev/exynos/Makefile index b5b1bd228abb..02d8dc522fea 100644 --- a/drivers/video/fbdev/exynos/Makefile +++ b/drivers/video/fbdev/exynos/Makefile @@ -2,6 +2,8 @@ # Makefile for the exynos video drivers. # -obj-$(CONFIG_EXYNOS_MIPI_DSI) += exynos_mipi_dsi.o exynos_mipi_dsi_common.o \ - exynos_mipi_dsi_lowlevel.o +obj-$(CONFIG_EXYNOS_MIPI_DSI) += exynos-mipi-dsi-mod.o + +exynos-mipi-dsi-mod-objs += exynos_mipi_dsi.o exynos_mipi_dsi_common.o \ + exynos_mipi_dsi_lowlevel.o obj-$(CONFIG_EXYNOS_LCD_S6E8AX0) += s6e8ax0.o diff --git a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c index 951b592794e3..92e4af3caaf8 100644 --- a/drivers/video/fbdev/exynos/exynos_mipi_dsi.c +++ b/drivers/video/fbdev/exynos/exynos_mipi_dsi.c @@ -263,6 +263,7 @@ int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver *lcd_drv) return 0; } +EXPORT_SYMBOL_GPL(exynos_mipi_dsi_register_lcd_driver); static struct mipi_dsim_ddi *exynos_mipi_dsi_bind_lcd_ddi( struct mipi_dsim_device *dsim, -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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