[PATCH 1/2] phy: qcom: qmp-pcie: Select MFD_SYSCON for the multi-PHY driver

[David Carlier]

The driver reads the active link mode through
syscon_regmap_lookup_by_phandle_args(). Without CONFIG_MFD_SYSCON the
stub returning -ENOTSUPP is compiled in instead, so probe fails for
every device and no PHY is ever registered.

Nothing in the build catches this: the driver still compiles, and arm64
defconfig happens to enable MFD_SYSCON through an unrelated select.

Fixes: 1781be3c8a5d ("phy: qcom: qmp-pcie: Add QMP PCIe Multi-PHY driver")
Signed-off-by: David Carlier <devnexen@xxxxxxxxx>
---
 drivers/phy/qualcomm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/phy/qualcomm/Kconfig b/drivers/phy/qualcomm/Kconfig
index d910a5d1a1ac..9113e1099245 100644
--- a/drivers/phy/qualcomm/Kconfig
+++ b/drivers/phy/qualcomm/Kconfig
@@ -81,6 +81,7 @@ config PHY_QCOM_QMP_PCIE_MULTIPHY
 	tristate "Qualcomm QMP PCIe Multi PHY Driver"
 	depends on PCI || COMPILE_TEST
 	select GENERIC_PHY
+	select MFD_SYSCON
 	help
 	  Enable this to support the QMP PCIe PHY transceiver that is used
 	  with PCIe controllers on Qualcomm chips. This PHY is a single
-- 
2.55.0