Re: [PATCH v2 1/3] dt-bindings: clock: qcom: Move x1e80100 TCSR to own binding

Rob Herring <[email protected]>
Newsgroups org.kernel.vger.linux-clk,org.kernel.vger.linux-arm-msm,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel
Message-ID <[email protected]>
On Wed, Aug 05, 2026 at 10:34:55PM -0700, Qiang Yu wrote:
> The QREF block supplies reference clocks to PCIe/USB/UFS PHYs and
> requires dedicated LDO supplies to operate. The digital control
> interface for QREF (clkref_en registers) resides in TCSR on x1e80100.
> Since QREF has no dedicated DT node of its own, these supply
> properties are placed in the TCSR node which acts as the control
> interface for QREF.
> 
> These LDOs are required by QREF to provide a stable reference clock,
> without which the USB/PCIe/eDP PHYs cannot work properly, so they are
> marked required even though it breaks ABI.
> 
> Add a dedicated binding file for qcom,x1e80100-tcsr and document the
> supply properties.
> 
> Signed-off-by: Qiang Yu <[email protected]>
> ---
>  .../bindings/clock/qcom,sm8550-tcsr.yaml           |   1 -
>  .../bindings/clock/qcom,x1e80100-tcsr.yaml         | 118 +++++++++++++++++++++
>  2 files changed, 118 insertions(+), 1 deletion(-)

sashiko issue needs to be addressed.
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