diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2014-11-06 12:52:07 +0100 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-11-10 09:34:56 +0100 |
| commit | 78df445e7807b1ed741d2571280a674f3e4a57bf (patch) | |
| tree | 20ffeaf149fcb2a26a61dee67873d78cb88a2eb3 | |
| parent | fc3756faa71e51664e3d43b401c273723047a049 (diff) | |
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 <geert+renesas@glider.be>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| -rw-r--r-- | drivers/i2c/busses/i2c-sh_mobile.c | 14 |
1 files changed, 8 insertions, 6 deletions
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); |