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authorLinus Torvalds <torvalds@linux-foundation.org>2012-01-18 13:46:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-01-18 13:46:13 -0800
commitaa303f2c06c0f3b42190b7e56c16bc856b1a1b28 (patch)
treea916c85bbdd3a23e27c1f71aa90afe8a179d99bb /Documentation
parent4a7c1ff2362b7bfbc04990f42c21cefdff57f997 (diff)
parent6f36a806e588f2ce62571a1859ea1d7f2c7dde83 (diff)
downloadlinux-linaro-stable-aa303f2c06c0f3b42190b7e56c16bc856b1a1b28.tar.gz
Merge branch 'for-linus/i2c-33' of git://git.fluff.org/bjdooks/linux
* 'for-linus/i2c-33' of git://git.fluff.org/bjdooks/linux: i2c-eg20t: Change-company-name-OKI-SEMICONDUCTOR to LAPIS Semiconductor i2c-eg20t: Support new device LAPIS Semiconductor ML7831 IOH i2c-eg20t: modified the setting of transfer rate. i2c-eg20t: use i2c_add_numbered_adapter to get a fixed bus number i2c: OMAP: Add DT support for i2c controller I2C: OMAP: NACK without STP I2C: OMAP: correct SYSC register offset for OMAP4
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/i2c/omap-i2c.txt30
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diff --git a/Documentation/devicetree/bindings/i2c/omap-i2c.txt b/Documentation/devicetree/bindings/i2c/omap-i2c.txt
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+++ b/Documentation/devicetree/bindings/i2c/omap-i2c.txt
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+I2C for OMAP platforms
+
+Required properties :
+- compatible : Must be "ti,omap3-i2c" or "ti,omap4-i2c"
+- ti,hwmods : Must be "i2c<n>", n being the instance number (1-based)
+- #address-cells = <1>;
+- #size-cells = <0>;
+
+Recommended properties :
+- clock-frequency : Desired I2C bus clock frequency in Hz. Otherwise
+ the default 100 kHz frequency will be used.
+
+Optional properties:
+- Child nodes conforming to i2c bus binding
+
+Note: Current implementation will fetch base address, irq and dma
+from omap hwmod data base during device registration.
+Future plan is to migrate hwmod data base contents into device tree
+blob so that, all the required data will be used from device tree dts
+file.
+
+Examples :
+
+i2c1: i2c@0 {
+ compatible = "ti,omap3-i2c";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ ti,hwmods = "i2c1";
+ clock-frequency = <400000>;
+};