From f82fd1845d309407a6ddc3a1c97c6088189c3a58 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Mon, 10 Apr 2023 17:19:38 +0100 Subject: [PATCH] i2c: mediatek: add support for MT7981 SoC 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 Reviewed-by: AngeloGioacchino Del Regno Reviewed-by: Alexandre Mergnat Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-mt65xx.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 59eaefe..a43c4d7 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 }, -- 2.7.4