From e89364556824cc7a947f99173af842217074c099 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Thu, 20 Feb 2014 09:03:20 +0100 Subject: [PATCH] i2c: rcar: add compatible entry for r8a7791 While we are here, also brush up the devicetree binding documentation. The example was an inappropriate copy from the sh_mobile driver. Signed-off-by: Wolfram Sang Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/i2c-rcar.txt | 14 ++++++++++---- drivers/i2c/busses/i2c-rcar.c | 1 + 2 files changed, 11 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt index 897cfcd5ce92..dd8b2dd1edeb 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt @@ -6,6 +6,7 @@ Required properties: "renesas,i2c-r8a7778" "renesas,i2c-r8a7779" "renesas,i2c-r8a7790" + "renesas,i2c-r8a7791" - reg: physical base address of the controller and length of memory mapped region. - interrupts: interrupt specifier. @@ -13,11 +14,16 @@ Required properties: Optional properties: - clock-frequency: desired I2C bus clock frequency in Hz. The absence of this propoerty indicates the default frequency 100 kHz. +- clocks: clock specifier. Examples : -i2c0: i2c@e6500000 { - compatible = "renesas,i2c-rcar-h2"; - reg = <0 0xe6500000 0 0x428>; - interrupts = <0 174 0x4>; +i2c0: i2c@e6508000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "renesas,i2c-r8a7791"; + reg = <0 0xe6508000 0 0x40>; + interrupts = <0 287 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&mstp9_clks R8A7791_CLK_I2C0>; + clock-frequency = <400000>; }; diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c index 0282d4d42805..cc60bc6c1b46 100644 --- a/drivers/i2c/busses/i2c-rcar.c +++ b/drivers/i2c/busses/i2c-rcar.c @@ -638,6 +638,7 @@ static const struct of_device_id rcar_i2c_dt_ids[] = { { .compatible = "renesas,i2c-r8a7778", .data = (void *)I2C_RCAR_GEN1 }, { .compatible = "renesas,i2c-r8a7779", .data = (void *)I2C_RCAR_GEN1 }, { .compatible = "renesas,i2c-r8a7790", .data = (void *)I2C_RCAR_GEN2 }, + { .compatible = "renesas,i2c-r8a7791", .data = (void *)I2C_RCAR_GEN2 }, {}, }; MODULE_DEVICE_TABLE(of, rcar_i2c_dt_ids); -- 2.20.1