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@xxxxxxxxx>
---
drivers/i2c/busses/i2c-sh_mobile.c | 14 ++++++++------
1 file changed, 8 insertions(+), 6 deletions(-)
diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 8b5e79cb4468a87f..8ac36e4ff40a09bb 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -626,17 +626,19 @@ 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);
--
1.9.1
--
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