linux-kernel - [PATCH 3/3] Documentation: Device Tree binding information for i2c-nomadik driver

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Message-ID: <4FD8BAF8.10806@linaro.org>
Date:	Wed, 13 Jun 2012 17:08:24 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Linus Walleij <linus.walleij@...aro.org>
CC:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linus.walleij@...ricsson.com, arnd@...db.de,
	grant.likely@...retlab.ca, linux-i2c@...r.kernel.org
Subject: [PATCH 3/3] Documentation: Device Tree binding information for i2c-nomadik
 driver

From: Lee Jones <lee.jones@...aro.org>
Date: Wed, 13 Jun 2012 17:00:02 +0100
Subject: [PATCH 3/3] Documentation: Device Tree binding information for
 i2c-nomadik driver

This document describes each of the non-standard Device Tree bindings
used in the Nomadik I2C driver.

Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 Documentation/devicetree/bindings/i2c/nomadik.txt |   33 +++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/nomadik.txt

diff --git a/Documentation/devicetree/bindings/i2c/nomadik.txt b/Documentation/devicetree/bindings/i2c/nomadik.txt
new file mode 100644
index 0000000..18cea18
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/nomadik.txt
@@ -0,0 +1,33 @@
+I2C for Nomadik based systems
+
+Required (non-standard) properties:
+ - Nil
+
+Recommended (non-standard) properties:
+ - clock-frequency : Maximum bus clock frequency for the device
+ - stericsson,slsu : Data line delay
+ - stericsson,tft : Tx FIFO threshold
+ - stericsson,rft : Rx FIFO threshold
+ - stericsson,timeout : Slave response timeout(ms)
+ - stericsson,i2c_freq_mode_fast : I2C fast mode (omit for standard mode)
+
+Optional (non-standard) properties:
+ - Nil
+
+Example :
+
+i2c@...04000 {
+        compatible = "stericsson,db8500-i2c", "st,nomadik-i2c";
+        reg = <0x80004000 0x1000>;
+        interrupts = <0 21 0x4>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+        v-i2c-supply = <&db8500_vape_reg>;
+
+        clock-frequency = <100000>;
+        stericsson,slsu = <0xe>;
+        stericsson,tft = <1>;
+        stericsson,rft = <8>;
+        stericsson,timeout = <200>;
+        stericsson,i2c_freq_mode_fast;
+};
-- 
1.7.9.5
--
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