diff mbox series

[1/2] i2c: mediatek: add support for MT7981 SoC

Message ID 5f611059ba664f912c4c5c6cc859acb9b5121e2e.1680817105.git.daniel@makrotopia.org (mailing list archive)
State New, archived
Headers show
Series i2c: i2c-mt65xx: add support for MT7981 | expand

Commit Message

Daniel Golle April 6, 2023, 9:41 p.m. UTC 
Add support for the I2C units found in the MediaTek MT7981 and MT7988
SoCs. Just like other recent MediaTek I2C units that also uses v3
register offsets (which differ from v2 only by OFFSET_SLAVE_ADDR being
0x94 instead of 0x4).

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 drivers/i2c/busses/i2c-mt65xx.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 59eaefe999b11..a43c4d77739ab 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -431,6 +431,18 @@  static const struct mtk_i2c_compatible mt8168_compat = {
 	.max_dma_support = 33,
 };
 
+static const struct mtk_i2c_compatible mt7981_compat = {
+	.regs = mt_i2c_regs_v3,
+	.pmic_i2c = 0,
+	.dcm = 0,
+	.auto_restart = 1,
+	.aux_len_reg = 1,
+	.timing_adjust = 1,
+	.dma_sync = 1,
+	.ltiming_adjust = 1,
+	.max_dma_support = 33
+};
+
 static const struct mtk_i2c_compatible mt7986_compat = {
 	.quirks = &mt7622_i2c_quirks,
 	.regs = mt_i2c_regs_v1,
@@ -516,6 +528,7 @@  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,mt7981-i2c", .data = &mt7981_compat },
 	{ .compatible = "mediatek,mt7986-i2c", .data = &mt7986_compat },
 	{ .compatible = "mediatek,mt8168-i2c", .data = &mt8168_compat },
 	{ .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat },