Revert "drm: Switch DRM_DISPLAY_HDCP_HELPER to depends on"

This reverts commit 3166e7e6, as helper
code should always be selected by the driver that needs it, for the
convenience of the final user configuring a kernel.

The user who configures a kernel should not need to know which helpers
are needed for the driver he is interested in.  Making a driver depend
on helper code means that the user needs to know which helpers to enable
first, which is very user-unfriendly.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/a40e70a0abd3d841c23c107d452a43fdd70ef37a.1713780345.git.geert+renesas@glider.beSigned-off-by: Maxime Ripard <mripard@kernel.org>

drivers/gpu/drm/amd/amdgpu/Kconfig

@@ -4,13 +4,13 @@ config DRM_AMDGPU
 	tristate "AMD GPU"
 	depends on DRM
 	depends on DRM_DISPLAY_DP_HELPER
-	depends on DRM_DISPLAY_HDCP_HELPER
 	depends on DRM_DISPLAY_HELPER
 	depends on MMU
 	depends on PCI
 	depends on !UML
 	select FW_LOADER
 	select DRM_DISPLAY_HDMI_HELPER
+	select DRM_DISPLAY_HDCP_HELPER
 	select DRM_KMS_HELPER
 	select DRM_SCHED
 	select DRM_TTM

drivers/gpu/drm/bridge/Kconfig

@@ -94,9 +94,9 @@ config DRM_ITE_IT6505
 	tristate "ITE IT6505 DisplayPort bridge"
 	depends on DRM_DISPLAY_DP_AUX_BUS
 	depends on DRM_DISPLAY_DP_HELPER
-	depends on DRM_DISPLAY_HDCP_HELPER
 	depends on DRM_DISPLAY_HELPER
 	depends on OF
+	select DRM_DISPLAY_HDCP_HELPER
 	select DRM_KMS_HELPER
 	select EXTCON
 	select CRYPTO

drivers/gpu/drm/bridge/analogix/Kconfig

@@ -35,9 +35,9 @@ config DRM_ANALOGIX_ANX7625
 	depends on DRM
 	depends on DRM_DISPLAY_DP_AUX_BUS
 	depends on DRM_DISPLAY_DP_HELPER
-	depends on DRM_DISPLAY_HDCP_HELPER
 	depends on DRM_DISPLAY_HELPER
 	depends on OF
+	select DRM_DISPLAY_HDCP_HELPER
 	select DRM_MIPI_DSI
 	help
 	  ANX7625 is an ultra-low power 4K mobile HD transmitter

drivers/gpu/drm/bridge/cadence/Kconfig

@@ -24,9 +24,9 @@ endif
 config DRM_CDNS_MHDP8546
 	tristate "Cadence DPI/DP bridge"
 	depends on DRM_DISPLAY_DP_HELPER
-	depends on DRM_DISPLAY_HDCP_HELPER
 	depends on DRM_DISPLAY_HELPER
 	depends on OF
+	select DRM_DISPLAY_HDCP_HELPER
 	select DRM_KMS_HELPER
 	select DRM_PANEL_BRIDGE
 	help

drivers/gpu/drm/display/Kconfig

@@ -67,7 +67,6 @@ config DRM_DISPLAY_DP_TUNNEL_STATE_DEBUG
 config DRM_DISPLAY_HDCP_HELPER
 	bool "DRM HDCD Helpers"
 	depends on DRM_DISPLAY_HELPER
-	default y
 	help
 	  DRM display helpers for HDCP.
 

drivers/gpu/drm/i915/Kconfig

@@ -3,7 +3,6 @@ config DRM_I915
 	tristate "Intel 8xx/9xx/G3x/G4x/HD Graphics"
 	depends on DRM
 	depends on DRM_DISPLAY_DP_HELPER
-	depends on DRM_DISPLAY_HDCP_HELPER
 	depends on DRM_DISPLAY_HELPER
 	depends on X86 && PCI
 	depends on !PREEMPT_RT
@@ -13,6 +12,7 @@ config DRM_I915
 	# the shmem_readpage() which depends upon tmpfs
 	select SHMEM
 	select TMPFS
+	select DRM_DISPLAY_HDCP_HELPER
 	select DRM_DISPLAY_HDMI_HELPER
 	select DRM_KMS_HELPER
 	select DRM_PANEL

drivers/gpu/drm/xe/Kconfig

@@ -4,7 +4,6 @@ config DRM_XE
 	depends on (m || (y && KUNIT=y))
 	depends on DRM
 	depends on DRM_DISPLAY_DP_HELPER
-	depends on DRM_DISPLAY_HDCP_HELPER
 	depends on DRM_DISPLAY_HELPER
 	depends on MMU
 	depends on PCI
@@ -19,6 +18,7 @@ config DRM_XE
 	select DRM_KUNIT_TEST_HELPERS if DRM_XE_KUNIT_TEST != n
 	select DRM_PANEL
 	select DRM_SUBALLOC_HELPER
+	select DRM_DISPLAY_HDCP_HELPER
 	select DRM_DISPLAY_HDMI_HELPER
 	select DRM_MIPI_DSI
 	select RELAY