linux-kernel - [PATCH v4 3/7] dt-bindings: PCI: meson: Update PCIE bindings documentation

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Message-Id: <20200115122908.16954-4-repk@triplefau.lt>
Date:   Wed, 15 Jan 2020 13:29:04 +0100
From:   Remi Pommarel <repk@...plefau.lt>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Yue Wang <yue.wang@...ogic.com>,
        Kevin Hilman <khilman@...libre.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Jerome Brunet <jbrunet@...libre.com>,
        linux-amlogic@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, Remi Pommarel <repk@...plefau.lt>
Subject: [PATCH v4 3/7] dt-bindings: PCI: meson: Update PCIE bindings documentation

Now that a new PHYs has been introduced for AXG SoC family, update
dt bindings documentation.

Please note that this breaks backward compatibility but as not a single
devicetree uses that yet that seems ok.

Signed-off-by: Remi Pommarel <repk@...plefau.lt>
---
 .../bindings/pci/amlogic,meson-pcie.txt       | 22 ++++++++-----------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt b/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt
index 84fdc422792e..b6acbe694ffb 100644
--- a/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/amlogic,meson-pcie.txt
@@ -18,7 +18,6 @@ Required properties:
 - reg-names: Must be
 	- "elbi"	External local bus interface registers
 	- "cfg"		Meson specific registers
-	- "phy"		Meson PCIE PHY registers for AXG SoC Family
 	- "config"	PCIe configuration space
 - reset-gpios: The GPIO to generate PCIe PERST# assert and deassert signal.
 - clocks: Must contain an entry for each entry in clock-names.
@@ -26,13 +25,13 @@ Required properties:
 	- "pclk"       PCIe GEN 100M PLL clock
 	- "port"       PCIe_x(A or B) RC clock gate
 	- "general"    PCIe Phy clock
-	- "mipi"       PCIe_x(A or B) 100M ref clock gate for AXG SoC Family
 - resets: phandle to the reset lines.
-- reset-names: must contain "phy" "port" and "apb"
-       - "phy"         Share PHY reset for AXG SoC Family
+- reset-names: must contain "port" and "apb"
        - "port"        Port A or B reset
        - "apb"         Share APB reset
-- phys: should contain a phandle to the shared phy for G12A SoC Family
+- phys: should contain a phandle to the PCIE phy
+- phy-names: must contain "pcie"
+
 - device_type:
 	should be "pci". As specified in designware-pcie.txt
 
@@ -43,9 +42,8 @@ Example configuration:
 			compatible = "amlogic,axg-pcie", "snps,dw-pcie";
 			reg = <0x0 0xf9800000 0x0 0x400000
 					0x0 0xff646000 0x0 0x2000
-					0x0 0xff644000 0x0 0x2000
 					0x0 0xf9f00000 0x0 0x100000>;
-			reg-names = "elbi", "cfg", "phy", "config";
+			reg-names = "elbi", "cfg", "config";
 			reset-gpios = <&gpio GPIOX_19 GPIO_ACTIVE_HIGH>;
 			interrupts = <GIC_SPI 177 IRQ_TYPE_EDGE_RISING>;
 			#interrupt-cells = <1>;
@@ -58,17 +56,15 @@ Example configuration:
 			ranges = <0x82000000 0 0 0x0 0xf9c00000 0 0x00300000>;
 
 			clocks = <&clkc CLKID_USB
-					&clkc CLKID_MIPI_ENABLE
 					&clkc CLKID_PCIE_A
 					&clkc CLKID_PCIE_CML_EN0>;
 			clock-names = "general",
-					"mipi",
 					"pclk",
 					"port";
-			resets = <&reset RESET_PCIE_PHY>,
-				<&reset RESET_PCIE_A>,
+			resets = <&reset RESET_PCIE_A>,
 				<&reset RESET_PCIE_APB>;
-			reset-names = "phy",
-					"port",
+			reset-names = "port",
 					"apb";
+			phys = <&pcie_phy>;
+			phy-names = "pcie";
 	};
-- 
2.24.1