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75 lines
2.3 KiB
Diff
75 lines
2.3 KiB
Diff
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From bd4f7dae6a1f2fd65bb2112783c92ffe0839bc77 Mon Sep 17 00:00:00 2001
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From: Daniel Golle <daniel@makrotopia.org>
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Date: Tue, 28 Feb 2023 23:53:56 +0000
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Subject: [PATCH] i2c: mediatek: add support for MT7981 SoC
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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---
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drivers/i2c/busses/i2c-mt65xx.c | 13 +++++++++++++
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1 file changed, 13 insertions(+)
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--- a/drivers/i2c/busses/i2c-mt65xx.c
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+++ b/drivers/i2c/busses/i2c-mt65xx.c
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@@ -202,6 +202,34 @@ static const u16 mt_i2c_regs_v2[] = {
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[OFFSET_DCM_EN] = 0xf88,
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};
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+static const u16 mt_i2c_regs_v3[] = {
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+ [OFFSET_DATA_PORT] = 0x0,
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+ [OFFSET_INTR_MASK] = 0x8,
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+ [OFFSET_INTR_STAT] = 0xc,
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+ [OFFSET_CONTROL] = 0x10,
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+ [OFFSET_TRANSFER_LEN] = 0x14,
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+ [OFFSET_TRANSAC_LEN] = 0x18,
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+ [OFFSET_DELAY_LEN] = 0x1c,
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+ [OFFSET_TIMING] = 0x20,
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+ [OFFSET_START] = 0x24,
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+ [OFFSET_EXT_CONF] = 0x28,
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+ [OFFSET_LTIMING] = 0x2c,
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+ [OFFSET_HS] = 0x30,
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+ [OFFSET_IO_CONFIG] = 0x34,
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+ [OFFSET_FIFO_ADDR_CLR] = 0x38,
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+ [OFFSET_SDA_TIMING] = 0x3c,
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+ [OFFSET_TRANSFER_LEN_AUX] = 0x44,
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+ [OFFSET_CLOCK_DIV] = 0x48,
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+ [OFFSET_SOFTRESET] = 0x50,
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+ [OFFSET_SCL_MIS_COMP_POINT] = 0x90,
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+ [OFFSET_SLAVE_ADDR] = 0x94,
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+ [OFFSET_DEBUGSTAT] = 0xe4,
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+ [OFFSET_DEBUGCTRL] = 0xe8,
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+ [OFFSET_FIFO_STAT] = 0xf4,
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+ [OFFSET_FIFO_THRESH] = 0xf8,
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+ [OFFSET_DCM_EN] = 0xf88,
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+};
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+
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struct mtk_i2c_compatible {
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const struct i2c_adapter_quirks *quirks;
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const u16 *regs;
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@@ -365,6 +393,18 @@ static const struct mtk_i2c_compatible m
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.max_dma_support = 32,
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};
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+static const struct mtk_i2c_compatible mt7981_compat = {
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+ .regs = mt_i2c_regs_v3,
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+ .pmic_i2c = 0,
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+ .dcm = 0,
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+ .auto_restart = 1,
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+ .aux_len_reg = 1,
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+ .timing_adjust = 1,
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+ .dma_sync = 1,
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+ .ltiming_adjust = 1,
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+ .max_dma_support = 33
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+};
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+
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static const struct mtk_i2c_compatible mt7986_compat = {
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.quirks = &mt7622_i2c_quirks,
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.regs = mt_i2c_regs_v1,
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@@ -424,6 +464,7 @@ static const struct of_device_id mtk_i2c
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{ .compatible = "mediatek,mt6577-i2c", .data = &mt6577_compat },
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{ .compatible = "mediatek,mt6589-i2c", .data = &mt6589_compat },
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{ .compatible = "mediatek,mt7622-i2c", .data = &mt7622_compat },
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+ { .compatible = "mediatek,mt7981-i2c", .data = &mt7981_compat },
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{ .compatible = "mediatek,mt7986-i2c", .data = &mt7986_compat },
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{ .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat },
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{ .compatible = "mediatek,mt8183-i2c", .data = &mt8183_compat },
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