linux-stable.git/drivers/gpu/drm/mediatek/Kconfig, branch linux-rolling-lts

drm/mediatek: stop selecting foreign drivers

2024-12-25T15:29:57+00:00

The PHY portion of the mediatek hdmi driver was originally part of
the driver it self and later split out into drivers/phy, which a
'select' to keep the prior behavior.

However, this leads to build failures when the PHY driver cannot
be built:

WARNING: unmet direct dependencies detected for PHY_MTK_HDMI
  Depends on [n]: (ARCH_MEDIATEK || COMPILE_TEST [=y]) && COMMON_CLK [=y] && OF [=y] && REGULATOR [=n]
  Selected by [m]:
  - DRM_MEDIATEK_HDMI [=m] && HAS_IOMEM [=y] && DRM [=m] && DRM_MEDIATEK [=m]
ERROR: modpost: "devm_regulator_register" [drivers/phy/mediatek/phy-mtk-hdmi-drv.ko] undefined!
ERROR: modpost: "rdev_get_drvdata" [drivers/phy/mediatek/phy-mtk-hdmi-drv.ko] undefined!

The best option here is to just not select the phy driver and leave that
up to the defconfig. Do the same for the other PHY and memory drivers
selected here as well for consistency.

Fixes: a481bf2f0ca4 ("drm/mediatek: Separate mtk_hdmi_phy to an independent module")
Signed-off-by: Arnd Bergmann 
Reviewed-by: AngeloGioacchino Del Regno 
Reviewed-by: CK Hu 
Link: https://patchwork.kernel.org/project/dri-devel/patch/20241218085837.2670434-1-arnd@kernel.org/
Signed-off-by: Chun-Kuang Hu

drm/mediatek: Drop dependency on ARM

2024-11-01T03:52:06+00:00

The recent attempt to make the MediaTek DRM driver build for non-ARM
compile tests made the driver unbuildable for arm64 platforms. Since
this is used on both ARM and arm64 platforms, just drop the dependency
on ARM.

Fixes: d2db0b8fd70b ("drm/mediatek: Allow build with COMPILE_TEST=y")
Reviewed-by: CK Hu 
Link: https://patchwork.freedesktop.org/patch/msgid/20241029111309.737263-1-wenst@chromium.org
Signed-off-by: Chen-Yu Tsai

drm/mediatek: Allow build with COMPILE_TEST=y

2024-10-25T07:24:21+00:00

Allow mediatek to be built with COMPILE_TEST=y for greater
coverage. Builds fine on x86/x86_64 at least.

Cc: Chun-Kuang Hu 
Cc: Philipp Zabel 
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Ville Syrjälä 
Link: https://patchwork.freedesktop.org/patch/msgid/20241003111851.10453-10-ville.syrjala@linux.intel.com
Reviewed-by: CK Hu

drm/mediatek: Run DRM default client setup

2024-09-26T06:28:06+00:00

Call drm_client_setup() to run the kernel's default client setup
for DRM. Set fbdev_probe in struct drm_driver, so that the client
setup can start the common fbdev client.

The mediatek driver specifies a preferred color mode of 32. As this
is the default if no format has been given, leave it out entirely.

v5:
- select DRM_CLIENT_SELECTION

Signed-off-by: Thomas Zimmermann 
Cc: Chun-KuaIng Hu 
Cc: Philipp Zabel 
Cc: Matthias Brugger 
Cc: AngeloGioacchino Del Regno 
Reviewed-by: Matthias Brugger 
Link: https://patchwork.freedesktop.org/patch/msgid/20240924071734.98201-27-tzimmermann@suse.de

drm/bridge-connector: move to DRM_DISPLAY_HELPER module

2024-09-03T08:18:31+00:00

drm_bridge_connector is a "leaf" driver, belonging to the display
helper, rather than the "CRTC" drm_kms_helper module. Move the driver
to the drm/display and add necessary Kconfig selection clauses.

Suggested-by: Maxime Ripard 
Acked-by: Maxime Ripard 
Signed-off-by: Dmitry Baryshkov 
Link: https://patchwork.freedesktop.org/patch/msgid/20240903-drm-bridge-connector-fix-hdmi-reset-v5-2-daebde6d9857@linaro.org
Signed-off-by: Maxime Ripard

drm/mediatek: select DRM_GEM_DMA_HELPER if DRM_FBDEV_EMULATION=y

2024-06-26T09:11:43+00:00

With the recent switch from fbdev-generic to fbdev-dma, the driver now
requires the DRM GEM DMA helpers. This dependency is missing, and will
cause a link failure if fbdev emulation is enabled.

Add the missing dependency.

Fixes: 0992284b4fe4 ("drm/mediatek: Use fbdev-dma")
Signed-off-by: Chen-Yu Tsai 
Reviewed-by: Thomas Zimmermann 
Acked-by: Chun-Kuang Hu 
Signed-off-by: Thomas Zimmermann 
Link: https://patchwork.freedesktop.org/patch/msgid/20240620054708.2230665-1-wenst@chromium.org

Revert "drm: Switch DRM_DISPLAY_HELPER to depends on"

2024-05-02T15:58:23+00:00

This reverts commit e075e496f516bf92bc0cbaf94d64e8d4a6b58321, 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 
Acked-by: Arnd Bergmann 
Link: https://patchwork.freedesktop.org/patch/msgid/1ba76cc4d96a8afefff5d1bc42fb1e1329c5da68.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard

Revert "drm: Switch DRM_DISPLAY_DP_AUX_BUS to depends on"

2024-05-02T15:58:22+00:00

This reverts commit 4d15125d7fe637f401e64e33c99513adf6586fdd, 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 
Acked-by: Arnd Bergmann 
Link: https://patchwork.freedesktop.org/patch/msgid/79824fec01eb9ab0673b9409f9b39cc8b5cc338d.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard

Revert "drm: Switch DRM_DISPLAY_DP_HELPER to depends on"

2024-05-02T15:58:21+00:00

This reverts commit 0323287de87d7e6e9c22c57d7440aa353a2298d0, 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 
Acked-by: Arnd Bergmann 
Link: https://patchwork.freedesktop.org/patch/msgid/89ac456805746b6d0c888f10c5120b11aacd3319.1713780345.git.geert+renesas@glider.be
Signed-off-by: Maxime Ripard

drm: Switch DRM_DISPLAY_DP_HELPER to depends on

2024-03-28T10:26:51+00:00

Most of our helpers have relied on being selected so far through
Kconfig, but that creates issues when we have multiple layers of helpers
with some depending on others.

Indeed, select doesn't select a dependency's dependencies, and thus
isn't super intuitive. Depends on however doesn't have that limitation,
so we can just switch all the drivers that were selecting
DRM_DISPLAY_DP_HELPER to depend on it.

Reviewed-by: Jani Nikula 
Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-10-eafee11b84b3@kernel.org
Signed-off-by: Maxime Ripard