Re: [PATCH] arm64: dts: qcom: ipq5018: Add pinctrl for MDIO bus
From: Jie Luo
Date: Tue Aug 11 2026 - 11:32:08 EST
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.