[PATCH 6.4 659/800] media: tc358746: select CONFIG_GENERIC_PHY

Greg Kroah-Hartman
2023-07-16T20:24:57Z

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.

--
2.39.2