From: Arnd Bergmann arnd@arndb.de
[ Upstream commit 582d4ad468cbc6ef2db4689ff3bd5868d95402c9 ]
The tc358746 driver selects CONFIG_GENERIC_PHY_MIPI_DPHY and links to that, but this fails when CONFIG_GENERIC_PHY is disabled, because Kbuild then never enters the drivers/phy directory for building object files:
ERROR: modpost: "phy_mipi_dphy_get_default_config_for_hsclk" [drivers/media/i2c/tc358746.ko] undefined!
Add an explicit 'select GENERIC_PHY' here to ensure that the directory is entered, and add another dependency on that symbol so make it more obvious what is going on if another driver has the same problem, as this will produce a Kconfig warning.
Link: https://lore.kernel.org/linux-media/20230623152318.2276816-1-arnd@kernel.org Fixes: 80a21da360516 ("media: tc358746: add Toshiba TC358746 Parallel to CSI-2 bridge driver") Signed-off-by: Arnd Bergmann arnd@arndb.de Reviewed-by: Marco Felsch m.felsch@pengutronix.de Signed-off-by: Mauro Carvalho Chehab mchehab@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/i2c/Kconfig | 1 + drivers/phy/Kconfig | 1 + 2 files changed, 2 insertions(+)
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index 256d55bb2b1da..76d1ee3cc1bab 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -1292,6 +1292,7 @@ config VIDEO_TC358746 select VIDEO_V4L2_SUBDEV_API select MEDIA_CONTROLLER select V4L2_FWNODE + select GENERIC_PHY select GENERIC_PHY_MIPI_DPHY select REGMAP_I2C help diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig index f46e3148d286d..8dba9596408f2 100644 --- a/drivers/phy/Kconfig +++ b/drivers/phy/Kconfig @@ -18,6 +18,7 @@ config GENERIC_PHY
config GENERIC_PHY_MIPI_DPHY bool + depends on GENERIC_PHY help Generic MIPI D-PHY support.