linux-kernel - [PATCH 2/7] dt-bindings: phy: Add binding for Qualcomm PCIe2 PHY

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Date:   Fri, 25 Jan 2019 15:45:04 -0800
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Andy Gross <andy.gross@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        David Brown <david.brown@...aro.org>,
        Khasim Syed Mohammed <khasim.mohammed@...aro.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Niklas Cassel <niklas.cassel@...aro.org>,
        Stanimir Varbanov <svarbanov@...sol.com>,
        Stephen Boyd <sboyd@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: [PATCH 2/7] dt-bindings: phy: Add binding for Qualcomm PCIe2 PHY

The Qualcomm PCIe2 PHY is a Synopsys based PCIe PHY found in a number of
Qualcomm platforms, add a binding to describe this.

Signed-off-by: Bjorn Andersson <bjorn.andersson@...aro.org>
---
 .../bindings/phy/qcom-pcie2-phy.txt           | 40 +++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/qcom-pcie2-phy.txt

diff --git a/Documentation/devicetree/bindings/phy/qcom-pcie2-phy.txt b/Documentation/devicetree/bindings/phy/qcom-pcie2-phy.txt
new file mode 100644
index 000000000000..7da02f9d78c7
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom-pcie2-phy.txt
@@ -0,0 +1,40 @@
+Qualcomm PCIe2 PHY controller
+=============================
+
+The Qualcomm PCIe2 PHY is a Synopsys based phy found in a number of Qualcomm
+platforms.
+
+Required properties:
+ - compatible: compatible list, should be:
+	       "qcom,qcs404-pcie2-phy", "qcom,pcie2-phy"
+
+ - reg: offset and length of the PHY register set.
+ - #phy-cells: must be 0.
+
+ - clocks: a clock-specifier pair for the "pipe" clock
+
+ - vdda-vp-supply: phandle to low voltage regulator
+ - vdda-vph-supply: phandle to high voltage regulator
+
+ - resets: reset-specifier pairs for the "phy" and "pipe" resets
+ - reset-names: list of resets, should contain:
+		"phy" and "pipe"
+
+ - clock-output-names: name of the outgoing clock signal from the PHY PLL
+
+Example:
+ phy@...6000 {
+	compatible = "qcom,qcs404-pcie2-phy", "qcom,pcie2-phy";
+	reg = <0x07786000 0xb8>;
+
+	clocks = <&gcc GCC_PCIE_0_PIPE_CLK>;
+	resets = <&gcc GCC_PCIEPHY_0_PHY_BCR>,
+	         <&gcc GCC_PCIE_0_PIPE_ARES>;
+	reset-names = "phy", "pipe";
+
+	vdda-vp-supply = <&vreg_l3_1p05>;
+	vdda-vph-supply = <&vreg_l5_1p8>;
+
+	clock-output-names = "pcie_0_pipe_clk";
+	#phy-cells = <0>;
+ };
-- 
2.18.0