[PATCH v3 3/4] arm64: dts: qcom: sa8775p: remove aux clock from pcie phy

Ziyue Zhang quic_ziyuzhan at quicinc.com
Thu Jul 10 03:24:57 PDT 2025


On 7/10/2025 5:43 PM, Johan Hovold wrote:
> On Fri, Jun 27, 2025 at 04:50:57PM +0200, Konrad Dybcio wrote:
>> On 6/25/25 11:00 AM, Ziyue Zhang wrote:
>>> gcc_aux_clk is used in PCIe RC and it is not required in pcie phy, in
>>> pcie phy it should be gcc_phy_aux_clk, so remove gcc_aux_clk and
>>> replace it with gcc_phy_aux_clk.
>> GCC_PCIE_n_PHY_AUX_CLK is a downstream of the PHY's output..
>> are you sure the PHY should be **consuming** it too?
> Could we get a reply here, please?
>
> A bunch of Qualcomm SoCs in mainline do exactly this currently even
> though it may not be correct (and some downstream dts do not use these
> clocks).
>
> Johan

Hi Johan

After reviewing the downstream platforms, it seems that GCC_PCIE_n_PHY_AUX_CLK
is generally needed. Would you mind letting us know if there are any platforms
where this clock is not required?




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