i2c: mediatek: add mt7986 support

Add i2c support for MT7986 SoC.
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>

drivers/i2c/busses/i2c-mt65xx.c

@@ -431,6 +431,19 @@ static const struct mtk_i2c_compatible mt8168_compat = {
 	.max_dma_support = 33,
 };
 
+static const struct mtk_i2c_compatible mt7986_compat = {
+	.quirks = &mt7622_i2c_quirks,
+	.regs = mt_i2c_regs_v1,
+	.pmic_i2c = 0,
+	.dcm = 1,
+	.auto_restart = 1,
+	.aux_len_reg = 1,
+	.timing_adjust = 0,
+	.dma_sync = 1,
+	.ltiming_adjust = 0,
+	.max_dma_support = 32,
+};
+
 static const struct mtk_i2c_compatible mt8173_compat = {
 	.regs = mt_i2c_regs_v1,
 	.pmic_i2c = 0,
@@ -503,6 +516,7 @@ static const struct of_device_id mtk_i2c_of_match[] = {
 	{ .compatible = "mediatek,mt6577-i2c", .data = &mt6577_compat },
 	{ .compatible = "mediatek,mt6589-i2c", .data = &mt6589_compat },
 	{ .compatible = "mediatek,mt7622-i2c", .data = &mt7622_compat },
+	{ .compatible = "mediatek,mt7986-i2c", .data = &mt7986_compat },
 	{ .compatible = "mediatek,mt8168-i2c", .data = &mt8168_compat },
 	{ .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat },
 	{ .compatible = "mediatek,mt8183-i2c", .data = &mt8183_compat },