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authorYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 12:17:53 -0700
committerYunhong Jiang <yunhong.jiang@intel.com>2015-08-04 15:44:42 -0700
commit9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch)
tree1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
parent98260f3884f4a202f9ca5eabed40b1354c489b29 (diff)
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
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diff --git a/kernel/Documentation/devicetree/bindings/i2c/i2c-rcar.txt b/kernel/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
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+I2C for R-Car platforms
+
+Required properties:
+- compatible: Must be one of
+ "renesas,i2c-rcar"
+ "renesas,i2c-r8a7778"
+ "renesas,i2c-r8a7779"
+ "renesas,i2c-r8a7790"
+ "renesas,i2c-r8a7791"
+ "renesas,i2c-r8a7792"
+ "renesas,i2c-r8a7793"
+ "renesas,i2c-r8a7794"
+- reg: physical base address of the controller and length of memory mapped
+ region.
+- interrupts: interrupt specifier.
+
+Optional properties:
+- clock-frequency: desired I2C bus clock frequency in Hz. The absence of this
+ propoerty indicates the default frequency 100 kHz.
+- clocks: clock specifier.
+
+Examples :
+
+i2c0: i2c@e6508000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "renesas,i2c-r8a7791";
+ reg = <0 0xe6508000 0 0x40>;
+ interrupts = <0 287 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&mstp9_clks R8A7791_CLK_I2C0>;
+ clock-frequency = <400000>;
+};