summaryrefslogtreecommitdiffstats
path: root/kernel/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
diff options
context:
space:
mode:
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-sh_mobile.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>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt')
-rw-r--r--kernel/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt40
1 files changed, 40 insertions, 0 deletions
diff --git a/kernel/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt b/kernel/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
new file mode 100644
index 000000000..2bfc6e7ed
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/i2c/i2c-sh_mobile.txt
@@ -0,0 +1,40 @@
+Device tree configuration for Renesas IIC (sh_mobile) driver
+
+Required properties:
+- compatible : "renesas,iic-<soctype>". "renesas,rmobile-iic" as fallback
+ Examples with soctypes are:
+ - "renesas,iic-r8a73a4" (R-Mobile APE6)
+ - "renesas,iic-r8a7740" (R-Mobile A1)
+ - "renesas,iic-r8a7790" (R-Car H2)
+ - "renesas,iic-r8a7791" (R-Car M2-W)
+ - "renesas,iic-r8a7792" (R-Car V2H)
+ - "renesas,iic-r8a7793" (R-Car M2-N)
+ - "renesas,iic-r8a7794" (R-Car E2)
+ - "renesas,iic-sh73a0" (SH-Mobile AG5)
+- reg : address start and address range size of device
+- interrupts : interrupt of device
+- clocks : clock for device
+- #address-cells : should be <1>
+- #size-cells : should be <0>
+
+Optional properties:
+- clock-frequency : frequency of bus clock in Hz. Default 100kHz if unset.
+- dmas : Must contain a list of two references to DMA
+ specifiers, one for transmission, and one for
+ reception.
+- dma-names : Must contain a list of two DMA names, "tx" and "rx".
+
+
+Pinctrl properties might be needed, too. See there.
+
+Example:
+
+ iic0: i2c@e6500000 {
+ compatible = "renesas,iic-r8a7790", "renesas,rmobile-iic";
+ reg = <0 0xe6500000 0 0x425>;
+ interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&mstp3_clks R8A7790_CLK_IIC0>;
+ clock-frequency = <400000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };