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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt')
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diff --git a/kernel/Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt b/kernel/Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt
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+++ b/kernel/Documentation/devicetree/bindings/i2c/i2c-lpc2k.txt
@@ -0,0 +1,33 @@
+NXP I2C controller for LPC2xxx/178x/18xx/43xx
+
+Required properties:
+ - compatible: must be "nxp,lpc1788-i2c"
+ - reg: physical address and length of the device registers
+ - interrupts: a single interrupt specifier
+ - clocks: clock for the device
+ - #address-cells: should be <1>
+ - #size-cells: should be <0>
+
+Optional properties:
+- clock-frequency: the desired I2C bus clock frequency in Hz; in
+ absence of this property the default value is used (100 kHz).
+
+Example:
+i2c0: i2c@400a1000 {
+ compatible = "nxp,lpc1788-i2c";
+ reg = <0x400a1000 0x1000>;
+ interrupts = <18>;
+ clocks = <&ccu1 CLK_APB1_I2C0>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+};
+
+&i2c0 {
+ clock-frequency = <400000>;
+
+ lm75@48 {
+ compatible = "nxp,lm75";
+ reg = <0x48>;
+ };
+};
+