Commit e8936455 authored by Wolfram Sang's avatar Wolfram Sang Committed by Wolfram Sang

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: default avatarWolfram Sang <wsa@sang-engineering.com>
Signed-off-by: default avatarWolfram Sang <wsa@the-dreams.de>
parent cfbf8d48
......@@ -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>;
};
......@@ -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);
......
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