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i2c: rcar: add support for r8a7795 (R-Car H3) 

Enable the I2C core for this SoC. I add a new type because this version
has new features (e.g. DMA) which will be added somewhen later.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Wolfram Sang 2015-08-05 15:18:25 +02:00 committed by Wolfram Sang
parent b299167652
commit e7db0d34b3
2 changed files with 4 additions and 0 deletions
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1
Documentation/devicetree/bindings/i2c/i2c-rcar.txt
View File

@ -10,6 +10,7 @@ Required properties:
"renesas,i2c-r8a7792"
"renesas,i2c-r8a7793"
"renesas,i2c-r8a7794"
"renesas,i2c-r8a7795"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: interrupt specifier.

3
drivers/i2c/busses/i2c-rcar.c
View File

@ -100,6 +100,7 @@
enum rcar_i2c_type {
I2C_RCAR_GEN1,
I2C_RCAR_GEN2,
I2C_RCAR_GEN3,
};
struct rcar_i2c_priv {
@ -176,6 +177,7 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
cdf_width = 2;
break;
case I2C_RCAR_GEN2:
case I2C_RCAR_GEN3:
cdf_width = 3;
break;
default:
@ -573,6 +575,7 @@ static const struct of_device_id rcar_i2c_dt_ids[] = {
{ .compatible = "renesas,i2c-r8a7792", .data = (void *)I2C_RCAR_GEN2 },
{ .compatible = "renesas,i2c-r8a7793", .data = (void *)I2C_RCAR_GEN2 },
{ .compatible = "renesas,i2c-r8a7794", .data = (void *)I2C_RCAR_GEN2 },
{ .compatible = "renesas,i2c-r8a7795", .data = (void *)I2C_RCAR_GEN3 },
{},
};
MODULE_DEVICE_TABLE(of, rcar_i2c_dt_ids);