From 78df445e7807b1ed741d2571280a674f3e4a57bf Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Thu, 6 Nov 2014 12:52:07 +0100 Subject: i2c: sh_mobile: Add support for r8a73a4 and sh73a0 Add support for r8a73a4 (R-Mobile APE6) and sh73a0 (SH-Mobile AG5). On these SoCs, the operating clock runs faster that on previous SoCs, and the internal SCL clock counter gets incremented every 2 clocks of the operating clock, just like on R-Car Gen2. Cfr. the "/2" in the calculation of ICCL/ICCH in section "I2C Bus Interface (IIC)", subsection "Transfer Rate" of the datasheets. Signed-off-by: Geert Uytterhoeven Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-sh_mobile.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers/i2c') diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c index 4855188747c9..2ee7547bebed 100644 --- a/drivers/i2c/busses/i2c-sh_mobile.c +++ b/drivers/i2c/busses/i2c-sh_mobile.c @@ -622,17 +622,19 @@ static const struct sh_mobile_dt_config default_dt_config = { .clks_per_count = 1, }; -static const struct sh_mobile_dt_config rcar_gen2_dt_config = { +static const struct sh_mobile_dt_config fast_clock_dt_config = { .clks_per_count = 2, }; static const struct of_device_id sh_mobile_i2c_dt_ids[] = { { .compatible = "renesas,rmobile-iic", .data = &default_dt_config }, - { .compatible = "renesas,iic-r8a7790", .data = &rcar_gen2_dt_config }, - { .compatible = "renesas,iic-r8a7791", .data = &rcar_gen2_dt_config }, - { .compatible = "renesas,iic-r8a7792", .data = &rcar_gen2_dt_config }, - { .compatible = "renesas,iic-r8a7793", .data = &rcar_gen2_dt_config }, - { .compatible = "renesas,iic-r8a7794", .data = &rcar_gen2_dt_config }, + { .compatible = "renesas,iic-r8a73a4", .data = &fast_clock_dt_config }, + { .compatible = "renesas,iic-r8a7790", .data = &fast_clock_dt_config }, + { .compatible = "renesas,iic-r8a7791", .data = &fast_clock_dt_config }, + { .compatible = "renesas,iic-r8a7792", .data = &fast_clock_dt_config }, + { .compatible = "renesas,iic-r8a7793", .data = &fast_clock_dt_config }, + { .compatible = "renesas,iic-r8a7794", .data = &fast_clock_dt_config }, + { .compatible = "renesas,iic-sh73a0", .data = &fast_clock_dt_config }, {}, }; MODULE_DEVICE_TABLE(of, sh_mobile_i2c_dt_ids); -- cgit v1.2.3