Re: [PATCH] arm64: dts: qcom: ipq5018: Add pinctrl for MDIO bus

From: Kathiravan Thirumoorthy

Date: Tue Aug 11 2026 - 12:42:00 EST


On 8/11/2026 8:54 PM, Jie Luo wrote:

On 8/11/2026 10:00 PM, Kathiravan Thirumoorthy wrote:
On 8/11/2026 7:06 PM, Luo Jie wrote:
The external MDIO bus (mdio1) needs its MDC/MDIO lines configured via
TLMM pinctrl; without this the pins are left in their default state and
the bus does not function on boards that enable it.
Should we move the TLMM definitions to the board DTS file rather than
keeping it in the SoC DTSI?
The MDC/MDIO pin-group definition is SoC-specific. On IPQ5018, only
these two TLMM pins support the MDIO interface—one for MDC and one for
MDIO—with no alternative pin assignments available. Therefore, the
definition can remain in the IPQ5018 pinctrl/SoC DTSI for reuse.

Thanks, As discussed, please send this change along with its consumer.