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

[Manivannan Sadhasivam]

On Tue, Aug 25, 2026 at 11:57:28PM +0100, David Carlier wrote:
> 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 at gmail.com>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam at oss.qualcomm.com>

- Mani

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