[PATCH v2 1/3] dt-bindings: phy: qcom,qmp: Add PCIe qcom,refclk-always-on property
Krishna chaitanya chundru
quic_krichai at quicinc.com
Tue Nov 7 04:26:13 PST 2023
Document qcom,refclk-always-on property which is needed in some platforms
to supply refclk even in PCIe low power states.
Signed-off-by: Krishna chaitanya chundru <quic_krichai at quicinc.com>
---
.../devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
index 2c3d6553a7ba..263291447a5b 100644
--- a/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml
@@ -93,6 +93,13 @@ properties:
"#phy-cells":
const: 0
+ qcom,refclk-always-on:
+ type: boolean
+ description: If there is some issues in platform with clkreq signal
+ propagation to the host and due to that host will not send refclk, which
+ results in linkdown in L1.2 or L1.1 exit initiated by EP. This property
+ if set keeps refclk always on even in Low power states (optional).
+
required:
- compatible
- reg
--
2.42.0
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