linux-kernel - [PATCH 2/8] dt-bindings: phy: Add Amlogic G12A USB3+PCIE Combo PHY Bindings

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Message-Id: <20190212151413.24632-3-narmstrong@baylibre.com>
Date:   Tue, 12 Feb 2019 16:14:07 +0100
From:   Neil Armstrong <narmstrong@...libre.com>
To:     gregkh@...uxfoundation.org, hminas@...opsys.com, balbi@...nel.org,
        kishon@...com, devicetree@...r.kernel.org
Cc:     Neil Armstrong <narmstrong@...libre.com>,
        linux-amlogic@...ts.infradead.org, linux-usb@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 2/8] dt-bindings: phy: Add Amlogic G12A USB3+PCIE Combo PHY Bindings

Add the Amlogic G12A Family USB3 + PCIE Combo PHY Bindings.

This PHY can provide exclusively USB3 or PCIE support on shared I/Os.

Signed-off-by: Neil Armstrong <narmstrong@...libre.com>
---
 .../bindings/phy/meson-g12a-usb3-pcie-phy.txt | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/meson-g12a-usb3-pcie-phy.txt

diff --git a/Documentation/devicetree/bindings/phy/meson-g12a-usb3-pcie-phy.txt b/Documentation/devicetree/bindings/phy/meson-g12a-usb3-pcie-phy.txt
new file mode 100644
index 000000000000..714d751091f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/meson-g12a-usb3-pcie-phy.txt
@@ -0,0 +1,25 @@
+* Amlogic G12A USB3 + PCIE Combo PHY binding
+
+Required properties:
+- compatible:	Should be "amlogic,meson-g12a-usb3-pcie-phy"
+- #phys-cells:	must be 1. The cell number is used to select the phy mode
+  as defined in <dt-bindings/phy/phy.h> between PHY_TYPE_USB3 and PHY_TYPE_PCIE
+- reg:		The base address and length of the registers
+- clocks:	a phandle to the 100MHz reference clock of this PHY
+- clock-names:	must be "ref_clk"
+- resets:	phandle to the reset lines for:
+		- the PHY control
+		- the USB3+PCIE PHY
+		- the PHY registers
+
+Example:
+	usb3_pcie_phy: phy@...00 {
+		compatible = "amlogic,g12a-usb3-pcie-phy";
+		reg = <0x0 0x46000 0x0 0x2000>;
+		clocks = <&clkc CLKID_PCIE_PLL>;
+		clock-names = "ref_clk";
+		resets = <&reset RESET_PCIE_CTRL_A>,
+			 <&reset RESET_PCIE_PHY>,
+			 <&reset RESET_PCIE_APB>;
+		#phy-cells = <1>;
+	};
-- 
2.20.1