drm: Make drivers depends on DRM_DW_HDMI

DRM_DW_HDMI has a number of dependencies that might not be enabled.
However, drivers were used to selecting it while not enforcing the
DRM_DW_HDMI dependencies.

This could result in Kconfig warnings (and further build breakages) such
as:

  Kconfig warnings: (for reference only)
     WARNING: unmet direct dependencies detected for DRM_DW_HDMI
     Depends on [n]: HAS_IOMEM [=y] && DRM [=m] && DRM_BRIDGE [=y] && DRM_DISPLAY_HELPER [=n]
     Selected by [m]:
     - DRM_SUN8I_DW_HDMI [=m] && HAS_IOMEM [=y] && DRM_SUN4I [=m]
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202403262127.kZkttfNz-lkp@intel.com/Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-7-eafee11b84b3@kernel.orgSigned-off-by: Maxime Ripard <mripard@kernel.org>

drivers/gpu/drm/bridge/imx/Kconfig

@@ -5,9 +5,9 @@ config DRM_IMX_LDB_HELPER
 
 config DRM_IMX8MP_DW_HDMI_BRIDGE
 	tristate "Freescale i.MX8MP HDMI-TX bridge support"
-	depends on OF
 	depends on COMMON_CLK
-	select DRM_DW_HDMI
+	depends on DRM_DW_HDMI
+	depends on OF
 	select DRM_IMX8MP_HDMI_PVI
 	select PHY_FSL_SAMSUNG_HDMI_PHY
 	help

drivers/gpu/drm/imx/ipuv3/Kconfig

@@ -35,7 +35,8 @@ config DRM_IMX_LDB
 
 config DRM_IMX_HDMI
 	tristate "Freescale i.MX DRM HDMI"
-	select DRM_DW_HDMI
-	depends on DRM_IMX && OF
+	depends on DRM_DW_HDMI
+	depends on DRM_IMX
+	depends on OF
 	help
 	  Choose this if you want to use HDMI on i.MX6.

drivers/gpu/drm/ingenic/Kconfig

@@ -27,8 +27,8 @@ config DRM_INGENIC_IPU
 
 config DRM_INGENIC_DW_HDMI
 	tristate "Ingenic specific support for Synopsys DW HDMI"
+	depends on DRM_DW_HDMI
 	depends on MACH_JZ4780
-	select DRM_DW_HDMI
 	help
 	  Choose this option to enable Synopsys DesignWare HDMI based driver.
 	  If you want to enable HDMI on Ingenic JZ4780 based SoC, you should

drivers/gpu/drm/meson/Kconfig

@@ -13,9 +13,9 @@ config DRM_MESON
 
 config DRM_MESON_DW_HDMI
 	tristate "HDMI Synopsys Controller support for Amlogic Meson Display"
+	depends on DRM_DW_HDMI
 	depends on DRM_MESON
 	default y if DRM_MESON
-	select DRM_DW_HDMI
 	imply DRM_DW_HDMI_I2S_AUDIO
 
 config DRM_MESON_DW_MIPI_DSI

drivers/gpu/drm/renesas/rcar-du/Kconfig

@@ -25,8 +25,8 @@ config DRM_RCAR_CMM
 config DRM_RCAR_DW_HDMI
 	tristate "R-Car Gen3 and RZ/G2 DU HDMI Encoder Support"
 	depends on DRM && OF
+	depends on DRM_DW_HDMI
 	depends on DRM_RCAR_DU || COMPILE_TEST
-	select DRM_DW_HDMI
 	help
 	  Enable support for R-Car Gen3 or RZ/G2 internal HDMI encoder.
 

drivers/gpu/drm/rockchip/Kconfig

@@ -7,7 +7,6 @@ config DRM_ROCKCHIP
 	select DRM_PANEL
 	select VIDEOMODE_HELPERS
 	select DRM_ANALOGIX_DP if ROCKCHIP_ANALOGIX_DP
-	select DRM_DW_HDMI if ROCKCHIP_DW_HDMI
 	select DRM_DW_MIPI_DSI if ROCKCHIP_DW_MIPI_DSI
 	select GENERIC_PHY if ROCKCHIP_DW_MIPI_DSI
 	select GENERIC_PHY_MIPI_DPHY if ROCKCHIP_DW_MIPI_DSI
@@ -57,6 +56,7 @@ config ROCKCHIP_CDN_DP
 
 config ROCKCHIP_DW_HDMI
 	bool "Rockchip specific extensions for Synopsys DW HDMI"
+	depends on DRM_DW_HDMI
 	help
 	  This selects support for Rockchip SoC specific extensions
 	  for the Synopsys DesignWare HDMI driver. If you want to

drivers/gpu/drm/sun4i/Kconfig

@@ -57,8 +57,8 @@ config DRM_SUN6I_DSI
 config DRM_SUN8I_DW_HDMI
 	tristate "Support for Allwinner version of DesignWare HDMI"
 	depends on DRM_SUN4I
+	depends on DRM_DW_HDMI
 	default DRM_SUN4I
-	select DRM_DW_HDMI
 	help
 	  Choose this option if you have an Allwinner SoC with the
 	  DesignWare HDMI controller. SoCs that support HDMI and