[PATCH v4 5/5] drm: Make FB_CORE to be selected if DRM fbdev emulation is enabled

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Now that fbdev core has been split in FB_CORE and FB, make the DRM symbol
to select the FB_CORE option if the DRM fbdev emulation layer is enabled.

This allows to disable the CONFIG_FB option if is not needed, which will
avoid the need to explicitly disable each of the legacy fbdev drivers.

Signed-off-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
---

(no changes since v3)

Changes in v3:
- Make the DRM symbol to select FB_CORE if DRM_FBDEV_EMULATION is
  enabled (Arnd Bergmann).
- Also make DRM select FB_SYS_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
- Make DRM_FBDEV_EMULATION to depend on DRM instead of DRM_KMS_HELPER.

Changes in v2:
- Make CONFIG_DRM_FBDEV_EMULATION to select FB_CORE (Thomas Zimmermann).

 drivers/gpu/drm/Kconfig | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index afb3b2f5f425..775564558152 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -9,6 +9,9 @@ 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_PANEL_ORIENTATION_QUIRKS
+	select DRM_KMS_HELPER if DRM_FBDEV_EMULATION
+	select FB_CORE if DRM_FBDEV_EMULATION
+	select FB_SYS_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
 	select HDMI
 	select I2C
 	select DMA_SHARED_BUFFER
@@ -95,7 +98,6 @@ config DRM_KUNIT_TEST
 config DRM_KMS_HELPER
 	tristate
 	depends on DRM
-	select FB_SYS_HELPERS_DEFERRED if DRM_FBDEV_EMULATION
 	help
 	  CRTC helpers for KMS drivers.
 
@@ -131,8 +133,7 @@ config DRM_DEBUG_MODESET_LOCK
 
 config DRM_FBDEV_EMULATION
 	bool "Enable legacy fbdev support for your modesetting driver"
-	depends on DRM_KMS_HELPER
-	depends on FB=y || FB=DRM_KMS_HELPER
+	depends on DRM
 	select FRAMEBUFFER_CONSOLE if !EXPERT
 	select FRAMEBUFFER_CONSOLE_DETECT_PRIMARY if FRAMEBUFFER_CONSOLE
 	default y
-- 
2.41.0




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