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phy: qcom: qmp-pcie: Select MFD_SYSCON for the multi-PHY driver

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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: 1781be3c8a ("phy: qcom: qmp-pcie: Add QMP PCIe Multi-PHY driver")
Signed-off-by: David Carlier <devnexen@gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://patch.msgid.link/20260825225729.230493-1-devnexen@gmail.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
David Carlier 2026-08-25 23:57:28 +01:00 committed by Vinod Koul
parent 392101240b
commit 77a0e6ae5d
1 changed files with 1 additions and 0 deletions
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drivers/phy/qualcomm/Kconfig
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@ -96,6 +96,7 @@ 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