arm64: dts: qcom: mahua: Add QREF regulator supplies to TCSR

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Mahua has a different QREF topology from Glymur. Override the TCSR
compatible to qcom,mahua-tcsr in mahua.dtsi, and wire up the required
LDO supplies on the CRD board.

Unlike the other PCIe controllers, PCIe5 PHY on Mahua gets its refclk
from the CXO0 pad directly and requires no QREF clkref_en voting. Hence,
point its ref clock at RPMH_CXO_CLK.

Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Qiang Yu <qiang.yu@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260721-tcsr_qre_0721-v10-7-d2fa68c63b78@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

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Qiang Yu 2026-07-21 22:59:02 -07:00 • committed by Bjorn Andersson

parent fc913a5ad8

commit 2947778fbc

2 changed files with 29 additions and 0 deletions

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16

arch/arm64/boot/dts/qcom/mahua-crd.dts

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13

arch/arm64/boot/dts/qcom/mahua.dtsi

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