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i2c: rcar: Add R-Car Gen4 support

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Add support for the I2C Bus Interface on R-Car Gen4 SoCs (e.g. R-Car
S4-8) by matching on a family-specific compatible value.

While I2C on R-Car Gen4 does support some extra features (Slave Clock
Stretch Select), for now it is treated the same as I2C on R-Car Gen3.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
[wsa: removed incorrect "FM+" from commit message]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
This commit is contained in:
Geert Uytterhoeven
2022-02-03 15:33:17 +01:00
committed by Wolfram Sang
parent b36fc8181e
commit ea01b71b07
1 changed files with 1 additions and 0 deletions
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1
drivers/i2c/busses/i2c-rcar.c
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@@ -1008,6 +1008,7 @@ static const struct of_device_id rcar_i2c_dt_ids[] = {
{ .compatible = "renesas,rcar-gen1-i2c", .data = (void *)I2C_RCAR_GEN1 },
{ .compatible = "renesas,rcar-gen2-i2c", .data = (void *)I2C_RCAR_GEN2 },
{ .compatible = "renesas,rcar-gen3-i2c", .data = (void *)I2C_RCAR_GEN3 },
{ .compatible = "renesas,rcar-gen4-i2c", .data = (void *)I2C_RCAR_GEN3 },
{},
};
MODULE_DEVICE_TABLE(of, rcar_i2c_dt_ids);