[PATCH v2 3/3] arm64: dts: qcom: Add missing TCSR refclk to the DP PHYs

Konrad Dybcio konrad.dybcio at oss.qualcomm.com
Thu Sep 4 01:40:36 PDT 2025


On 9/3/25 2:37 PM, Abel Vesa wrote:
> The DP PHYs on X1E80100 need the refclk which is provided
> by the TCSR CC. So add it to the PHYs.
> 
> Cc: stable at vger.kernel.org # v6.9

You want to backport this to 6.9, but you also want to backport
the driver patch to 6.10, "meh"

I'm not sure it makes sense to backport functionally, as this would
only exhibit issues if:

a) the UEFI did no work to enable the refclk
or:
b) unused cleanup would happen

but the board would not survive booting with b) in v6.9, at least
it wouldn't have display  - see Commit b60521eff227 ("clk: qcom:
gcc-x1e80100: Unregister GCC_GPU_CFG_AHB_CLK/GCC_DISP_XO_CLK")

and a) is not something we'd hit on any of the upstream-supported
targets

Konrad



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