linux-kernel - linux-next: manual merge of the usb tree with the samsung tree

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Date:	Tue, 18 Mar 2014 16:58:29 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Greg KH <greg@...ah.com>, Kukjin Kim <kgene.kim@...sung.com>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Yuvaraj Kumar C D <yuvaraj.cd@...sung.com>,
	Kamil Debski <k.debski@...sung.com>,
	Kishon Vijay Abraham I <kishon@...com>
Subject: linux-next: manual merge of the usb tree with the samsung tree

Hi Greg,

Today's linux-next merge of the usb tree got a conflict in
Documentation/devicetree/bindings/phy/samsung-phy.txt between commit
ba0d7ed391b7 ("ARM: dts: enable ahci sata and sata phy for exynos5250")
from the samsung tree and commit 06fb01373cae ("phy: Add new Exynos USB
2.0 PHY driver") from the usb tree.

I fixed it up (see below) and can carry the fix as necessary (no action
is required).

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

diff --cc Documentation/devicetree/bindings/phy/samsung-phy.txt
index a937f75d062c,28f9edb8f19c..000000000000
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@@ -21,38 -21,56 +21,92 @@@ Required properties
  - reg : offset and length of the Display Port PHY register set;
  - #phy-cells : from the generic PHY bindings, must be 0;
  
 +Samsung SATA PHY Controller
 +---------------------------
 +
 +SATA PHY nodes are defined to describe on-chip SATA Physical layer controllers.
 +Each SATA PHY controller should have its own node.
 +
 +Required properties:
 +- compatible        : compatible list, contains "samsung,exynos5250-sata-phy"
 +- reg : offset and length of the SATA PHY register set;
 +- #phy-cells : from the generic phy bindings;
 +
 +Example:
 +	sata_phy: sata-phy@...70000 {
 +		compatible = "samsung,exynos5250-sata-phy";
 +		reg = <0x12170000 0x1ff>;
 +		clocks = <&clock 287>;
 +		clock-names = "sata_phyctrl";
 +		#phy-cells = <0>;
 +		samsung,exynos-sataphy-i2c-phandle = <&sata_phy_i2c>;
 +		samsung,syscon-phandle = <&pmu_syscon>;
 +	};
 +
 +Device-Tree bindings for sataphy i2c client driver
 +--------------------------------------------------
 +
 +Required properties:
 +compatible: Should be "samsung,exynos-sataphy-i2c"
 +- reg: I2C address of the sataphy i2c device.
 +
 +Example:
 +
 +	sata_phy_i2c:sata-phy@38 {
 +		compatible = "samsung,exynos-sataphy-i2c";
 +		reg = <0x38>;
 +	};
++
+ Samsung S5P/EXYNOS SoC series USB PHY
+ -------------------------------------------------
+ 
+ Required properties:
+ - compatible : should be one of the listed compatibles:
+ 	- "samsung,exynos4210-usb2-phy"
+ 	- "samsung,exynos4x12-usb2-phy"
+ 	- "samsung,exynos5250-usb2-phy"
+ - reg : a list of registers used by phy driver
+ 	- first and obligatory is the location of phy modules registers
+ - samsung,sysreg-phandle - handle to syscon used to control the system registers
+ - samsung,pmureg-phandle - handle to syscon used to control PMU registers
+ - #phy-cells : from the generic phy bindings, must be 1;
+ - clocks and clock-names:
+ 	- the "phy" clock is required by the phy module, used as a gate
+ 	- the "ref" clock is used to get the rate of the clock provided to the
+ 	  PHY module
+ 
+ The first phandle argument in the PHY specifier identifies the PHY, its
+ meaning is compatible dependent. For the currently supported SoCs (Exynos 4210
+ and Exynos 4212) it is as follows:
+   0 - USB device ("device"),
+   1 - USB host ("host"),
+   2 - HSIC0 ("hsic0"),
+   3 - HSIC1 ("hsic1"),
+ 
+ Exynos 4210 and Exynos 4212 use mode switching and require that mode switch
+ register is supplied.
+ 
+ Example:
+ 
+ For Exynos 4412 (compatible with Exynos 4212):
+ 
+ usbphy: phy@...b0000 {
+ 	compatible = "samsung,exynos4x12-usb2-phy";
+ 	reg = <0x125b0000 0x100>;
+ 	clocks = <&clock 305>, <&clock 2>;
+ 	clock-names = "phy", "ref";
+ 	status = "okay";
+ 	#phy-cells = <1>;
+ 	samsung,sysreg-phandle = <&sys_reg>;
+ 	samsung,pmureg-phandle = <&pmu_reg>;
+ };
+ 
+ Then the PHY can be used in other nodes such as:
+ 
+ phy-consumer@...40000 {
+ 	phys = <&usbphy 2>;
+ 	phy-names = "phy";
+ };
+ 
+ Refer to DT bindings documentation of particular PHY consumer devices for more
+ information about required PHYs and the way of specification.

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