From 310c18a414504e42dbeb96263bc81ca865c7c3e5 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Fri, 20 Dec 2013 19:08:50 +0100 Subject: i2c: riic: add driver Tested with a r7s72100 genmai board acessing an eeprom. Signed-off-by: Wolfram Sang Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/i2c-riic.txt | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/i2c-riic.txt (limited to 'Documentation/devicetree/bindings/i2c/i2c-riic.txt') diff --git a/Documentation/devicetree/bindings/i2c/i2c-riic.txt b/Documentation/devicetree/bindings/i2c/i2c-riic.txt new file mode 100644 index 000000000000..0bcc4716c319 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-riic.txt @@ -0,0 +1,29 @@ +Device tree configuration for Renesas RIIC driver + +Required properties: +- compatible : "renesas,riic-". "renesas,riic-rz" as fallback +- reg : address start and address range size of device +- interrupts : 8 interrupts (TEI, RI, TI, SPI, STI, NAKI, ALI, TMOI) +- clock-frequency : frequency of bus clock in Hz +- #address-cells : should be <1> +- #size-cells : should be <0> + +Pinctrl properties might be needed, too. See there. + +Example: + + i2c0: i2c@fcfee000 { + compatible = "renesas,riic-r7s72100", "renesas,riic-rz"; + reg = <0xfcfee000 0x44>; + interrupts = <0 157 IRQ_TYPE_LEVEL_HIGH>, + <0 158 IRQ_TYPE_EDGE_RISING>, + <0 159 IRQ_TYPE_EDGE_RISING>, + <0 160 IRQ_TYPE_LEVEL_HIGH>, + <0 161 IRQ_TYPE_LEVEL_HIGH>, + <0 162 IRQ_TYPE_LEVEL_HIGH>, + <0 163 IRQ_TYPE_LEVEL_HIGH>, + <0 164 IRQ_TYPE_LEVEL_HIGH>; + clock-frequency = <100000>; + #address-cells = <1>; + #size-cells = <0>; + }; -- cgit