[PATCH 2/2] i2c: mediatek: add support for MT6878 SoC

[Igor Belwon]

Add support for the I2C units found in the MediaTek MT6878 SoC.
Just like other recent MediaTek SoCs, it uses the v3 register offsets
(which differ from v2 only by OFFSET_SLAVE_ADDR being
0x94 instead of 0x4).

Signed-off-by: Igor Belwon <igor.belwon at mentallysanemainliners.org>
---
 drivers/i2c/busses/i2c-mt65xx.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index ab456c3717db18eef74226de0ee88c49228796f5..085702aee006a6dd0ac89d1382a12fbac2d91c55 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -402,6 +402,19 @@ static const struct mtk_i2c_compatible mt6589_compat = {
 	.max_dma_support = 32,
 };
 
+static const struct mtk_i2c_compatible mt6878_compat = {
+	.regs = mt_i2c_regs_v3,
+	.pmic_i2c = 0,
+	.dcm = 0,
+	.auto_restart = 1,
+	.aux_len_reg = 1,
+	.timing_adjust = 1,
+	.dma_sync = 0,
+	.ltiming_adjust = 1,
+	.apdma_sync = 1,
+	.max_dma_support = 36,
+};
+
 static const struct mtk_i2c_compatible mt7622_compat = {
 	.quirks = &mt7622_i2c_quirks,
 	.regs = mt_i2c_regs_v1,
@@ -525,6 +538,7 @@ static const struct of_device_id mtk_i2c_of_match[] = {
 	{ .compatible = "mediatek,mt2712-i2c", .data = &mt2712_compat },
 	{ .compatible = "mediatek,mt6577-i2c", .data = &mt6577_compat },
 	{ .compatible = "mediatek,mt6589-i2c", .data = &mt6589_compat },
+	{ .compatible = "mediatek,mt6878-i2c", .data = &mt6878_compat },
 	{ .compatible = "mediatek,mt7622-i2c", .data = &mt7622_compat },
 	{ .compatible = "mediatek,mt7981-i2c", .data = &mt7981_compat },
 	{ .compatible = "mediatek,mt7986-i2c", .data = &mt7986_compat },

-- 
2.51.0