From e3b7599be71aea67c67edfc44fcbd529df0c0eab Mon Sep 17 00:00:00 2001 From: Songjun Wu Date: Mon, 20 Jun 2016 13:22:39 +0800 Subject: [PATCH] i2c: atmel: DT binding for i2c driver DT binding documentation for atmel i2c driver. Signed-off-by: Songjun Wu Reviewed-by: Heiko Schocher Acked-by: Heiko Schocher --- doc/device-tree-bindings/i2c/i2c-at91.txt | 26 +++++++++++++++++++++++ 1 file changed, 26 insertions(+) create mode 100644 doc/device-tree-bindings/i2c/i2c-at91.txt diff --git a/doc/device-tree-bindings/i2c/i2c-at91.txt b/doc/device-tree-bindings/i2c/i2c-at91.txt new file mode 100644 index 0000000000..2065b7341a --- /dev/null +++ b/doc/device-tree-bindings/i2c/i2c-at91.txt @@ -0,0 +1,26 @@ +I2C for Atmel platforms + +Required properties : +- compatible : Must be "atmel,at91rm9200-i2c", "atmel,at91sam9261-i2c", + "atmel,at91sam9260-i2c", "atmel,at91sam9g20-i2c", "atmel,at91sam9g10-i2c", + "atmel,at91sam9x5-i2c", "atmel,sama5d4-i2c" or "atmel,sama5d2-i2c". +- reg: physical base address of the controller and length of memory mapped + region. +- #address-cells = <1>; +- #size-cells = <0>; +- clocks: phandles to input clocks. + +Optional properties: +- clock-frequency: Desired I2C bus frequency in Hz, default value is 100000. +- Child nodes conforming to i2c bus binding. + +Examples : + +i2c0: i2c@f8028000 { + compatible = "atmel,sama5d2-i2c"; + reg = <0xf8028000 0x100>; + #address-cells = <1>; + #size-cells = <0>; + clocks = <&twi0_clk>; + clock-frequency = <100000>; +}; -- 2.25.1