This is a note to let you know that I've just added the patch titled
drm: bridge: for GENERIC_PHY_MIPI_DPHY also select GENERIC_PHY
to the 6.5-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-bridge-for-generic_phy_mipi_dphy-also-select-gen.patch
and it can be found in the queue-6.5 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 380106cbfc1e2b07ab3691350ec5ff27228e6eee
Author: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Date: Thu Aug 3 20:01:37 2023 -0700
drm: bridge: for GENERIC_PHY_MIPI_DPHY also select GENERIC_PHY
[ Upstream commit 96413b355a49fd684430a230479bd231d977894f ]
Three DRM bridge drivers select GENERIC_PHY_MIPI_DPHY when GENERIC_PHY
might not be set. This causes Kconfig warnings and a build error.
WARNING: unmet direct dependencies detected for GENERIC_PHY_MIPI_DPHY
Depends on [n]: GENERIC_PHY [=n]
Selected by [y]:
- DRM_NWL_MIPI_DSI [=y] && DRM_BRIDGE [=y] && DRM [=y] && COMMON_CLK [=y] && OF [=y] && HAS_IOMEM [=y]
- DRM_SAMSUNG_DSIM [=y] && DRM [=y] && DRM_BRIDGE [=y] && COMMON_CLK [=y] && OF [=y] && HAS_IOMEM [=y]
(drm/bridge/cadence/Kconfig was found by inspection.)
aarch64-linux-ld: drivers/gpu/drm/bridge/samsung-dsim.o: in function `samsung_dsim_set_phy_ctrl':
drivers/gpu/drm/bridge/samsung-dsim.c:731: undefined reference to `phy_mipi_dphy_get_default_config_for_hsclk'
Prevent these warnings and build error by also selecting GENERIC_PHY
whenever selecting GENERIC_PHY_MIPI_DPHY.
Fixes: fced5a364dee ("drm/bridge: cdns: Convert to phy framework")
Fixes: 44cfc6233447 ("drm/bridge: Add NWL MIPI DSI host controller support")
Fixes: 171b3b1e0f8b ("drm: bridge: samsung-dsim: Select GENERIC_PHY_MIPI_DPHY")
Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
Reported-by: Aleksandr Nogikh <nogikh@xxxxxxxxxx>
Link: lore.kernel.org/r/20230803144227.2187749-1-nogikh@xxxxxxxxxx
Cc: Adam Ford <aford173@xxxxxxxxx>
Cc: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>
Cc: Guido Günther <agx@xxxxxxxxxxx>
Cc: Robert Chiras <robert.chiras@xxxxxxx>
Cc: Sam Ravnborg <sam@xxxxxxxxxxxx>
Cc: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
Cc: Robert Foss <rfoss@xxxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxxx>
Cc: Daniel Vetter <daniel@xxxxxxxx>
Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx
Reviewed-by: Adam Ford <aford173@xxxxxxxxx>
Tested-by: Aleksandr Nogikh <nogikh@xxxxxxxxxx>
Reviewed-by: Guido Günther <agx@xxxxxxxxxxx>
Signed-off-by: Robert Foss <rfoss@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230804030140.21395-1-rdunlap@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig
index 82c68b0424443..42d05a247511a 100644
--- a/drivers/gpu/drm/bridge/Kconfig
+++ b/drivers/gpu/drm/bridge/Kconfig
@@ -181,6 +181,7 @@ config DRM_NWL_MIPI_DSI
select DRM_KMS_HELPER
select DRM_MIPI_DSI
select DRM_PANEL_BRIDGE
+ select GENERIC_PHY
select GENERIC_PHY_MIPI_DPHY
select MFD_SYSCON
select MULTIPLEXER
@@ -227,6 +228,7 @@ config DRM_SAMSUNG_DSIM
select DRM_KMS_HELPER
select DRM_MIPI_DSI
select DRM_PANEL_BRIDGE
+ select GENERIC_PHY
select GENERIC_PHY_MIPI_DPHY
help
The Samsung MIPI DSIM bridge controller driver.
diff --git a/drivers/gpu/drm/bridge/cadence/Kconfig b/drivers/gpu/drm/bridge/cadence/Kconfig
index ec35215a20034..cced81633ddcd 100644
--- a/drivers/gpu/drm/bridge/cadence/Kconfig
+++ b/drivers/gpu/drm/bridge/cadence/Kconfig
@@ -4,6 +4,7 @@ config DRM_CDNS_DSI
select DRM_KMS_HELPER
select DRM_MIPI_DSI
select DRM_PANEL_BRIDGE
+ select GENERIC_PHY
select GENERIC_PHY_MIPI_DPHY
depends on OF
help
