[1/5] DT: phy: qcom: Add PCIe PHY devicetree bindings

Commit Message

Stanimir Varbanov Dec. 12, 2014, 5:13 p.m. UTC

Document Qualcomm PCIe PHY devicetree bindings.

Signed-off-by: Stanimir Varbanov <[e-mail]>
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 .../devicetree/bindings/phy/qcom-pcie-phy.txt      |   62 ++++++++++++++++++++
 1 files changed, 62 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/phy/qcom-pcie-phy.txt

Patch

diff --git a/Documentation/devicetree/bindings/phy/qcom-pcie-phy.txt b/Documentation/devicetree/bindings/phy/qcom-pcie-phy.txt
new file mode 100644
index 0000000..f53eaf3
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+++ b/Documentation/devicetree/bindings/phy/qcom-pcie-phy.txt
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+* Qualcomm PCIe PHY controller
+
+PCIe PHY nodes are defined to describe on-chip SATA Physical layer controllers.
+Each SATA PHY controller should have its own node.
+
+- compatible:
+	Usage: required
+	Value type: <stringlist>
+	Definition: Value should contain "qcom,pcie-phy"
+
+- reg:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: Offset and length of the PCIe PHY registers
+
+- #phy-cells:
+	Usage: required
+	Value type: <u32>
+	Definition: Must be zero
+
+- clocks:
+	Usage: required
+	Value type: <prop-encoded-array>
+	Definition: A list of phandles and clock specifier pair, one
+		    for each entry in clock-names property
+
+- clock-names:
+	Usage: required
+	Value type: <stringlist>
+	Definition: Must be "core" for PHY core clock
+
+- resets:
+	Usage: required
+	Value type: <phandle>
+	Definition: List of phandle and reset specifier pairs as listed
+		    in reset-names property
+
+- reset-names:
+	Usage: required
+	Value type: <stringlist>
+	Definition: Should contain "phy" for PHY reset
+
+- <name>-supply:
+	Usage: required
+	Value type: <phandle>
+	Definition: List of phandles to the supply regulators
+		- "vdda"     analog Vdd supply
+		- "vdda_pll" analog Vdd PLL supply
+
+* Example
+
+	pciephy0: phy@fc526000 {
+		compatible = "qcom,pcie-phy";
+		reg = <0xfc526000 0x1000>;
+		clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
+		clock-names = "core";
+		resets = <&gcc GCC_PCIE_0_PHY_BCR>;
+		reset-names = "phy";
+		vdda-supply = <&pma8084_l3>;
+		vdda_pll-supply = <&pma8084_l12>;
+		#phy-cells = <0>;
+	};