| Message ID | 20231107-refclk_always_on-v2-1-de23962fc4b3@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | phy: qcom-qmp-pcie: Add support to keep refclk always on | expand |
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
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@quicinc.com> --- .../devicetree/bindings/phy/qcom,sc8280xp-qmp-pcie-phy.yaml | 7 +++++++ 1 file changed, 7 insertions(+)