drm: Decouple nomodeset from CONFIG_VGA_CONSOLE

This relationship was only for historical reasons and the nomodeset option
should be available even on platforms that don't enable CONFIG_VGA_CONSOLE.

Suggested-by: Thomas Zimmermann <[email protected]>
Signed-off-by: Javier Martinez Canillas <[email protected]>
Acked-by: Thomas Zimmermann <[email protected]>
Acked-by: Jani Nikula <[email protected]>
Acked-by: Pekka Paalanen <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]

Author: martinezjavier

drivers/gpu/drm/Kconfig

@@ -8,6 +8,7 @@
 menuconfig DRM
 	tristate "Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)"
 	depends on (AGP || AGP=n) && !EMULATED_CMPXCHG && HAS_DMA
+	select DRM_NOMODESET
 	select DRM_PANEL_ORIENTATION_QUIRKS
 	select HDMI
 	select FB_CMDLINE
@@ -492,6 +493,11 @@ config DRM_EXPORT_FOR_TESTS
 config DRM_PANEL_ORIENTATION_QUIRKS
 	tristate
 
+# Separate option because nomodeset parameter is global and expected built-in
+config DRM_NOMODESET
+	bool
+	default n
+
 config DRM_LIB_RANDOM
 	bool
 	default n

drivers/gpu/drm/Makefile

@@ -33,7 +33,7 @@ drm-$(CONFIG_DRM_PRIVACY_SCREEN) += drm_privacy_screen.o drm_privacy_screen_x86.
 
 obj-$(CONFIG_DRM_DP_AUX_BUS) += drm_dp_aux_bus.o
 
-obj-$(CONFIG_VGA_CONSOLE) += drm_nomodeset.o
+obj-$(CONFIG_DRM_NOMODESET) += drm_nomodeset.o
 
 drm_cma_helper-y := drm_gem_cma_helper.o
 obj-$(CONFIG_DRM_GEM_CMA_HELPER) += drm_cma_helper.o

include/drm/drm_drv.h

@@ -601,10 +601,6 @@ static inline bool drm_drv_uses_atomic_modeset(struct drm_device *dev)
 
 int drm_dev_set_unique(struct drm_device *dev, const char *name);
 
-#ifdef CONFIG_VGA_CONSOLE
 extern bool drm_firmware_drivers_only(void);
-#else
-static inline bool drm_firmware_drivers_only(void) { return false; }
-#endif
 
 #endif