Re: [RESEND v4 2/2] i2c: mediatek: Add i2c compatible for Mediatek MT8188

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On 08/07/2022 05:47, kewei.xu@xxxxxxxxxxxx wrote:
From: Kewei Xu <kewei.xu@xxxxxxxxxxxx>

Add i2c compatible for MT8188. Compare to MT8192 i2c controller,
The MT8188 i2c OFFSET_SLAVE_ADDR register changed from 0x04 to 0x94.


Having a look at mt8192_compat there seem to be more changes. I suppose you wanted to say, that in the register mapping the only difference is the OFFSET_SLAVE_ADDR address, that changes.

Regards,
Matthias

Signed-off-by: Kewei Xu <kewei.xu@xxxxxxxxxxxx>
---
v4: no changes
V3: no changes
V2: added mt_i2c_regs_v3[] to replace slave_addr_version.
---
  drivers/i2c/busses/i2c-mt65xx.c | 43 +++++++++++++++++++++++++++++++++
  1 file changed, 43 insertions(+)

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 8e6985354fd5..70aff42adf5d 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -229,6 +229,35 @@ static const u16 mt_i2c_regs_v2[] = {
  	[OFFSET_DCM_EN] = 0xf88,
  };
+static const u16 mt_i2c_regs_v3[] = {
+	[OFFSET_DATA_PORT] = 0x0,
+	[OFFSET_SLAVE_ADDR] = 0x94,
+	[OFFSET_INTR_MASK] = 0x8,
+	[OFFSET_INTR_STAT] = 0xc,
+	[OFFSET_CONTROL] = 0x10,
+	[OFFSET_TRANSFER_LEN] = 0x14,
+	[OFFSET_TRANSAC_LEN] = 0x18,
+	[OFFSET_DELAY_LEN] = 0x1c,
+	[OFFSET_TIMING] = 0x20,
+	[OFFSET_START] = 0x24,
+	[OFFSET_EXT_CONF] = 0x28,
+	[OFFSET_LTIMING] = 0x2c,
+	[OFFSET_HS] = 0x30,
+	[OFFSET_IO_CONFIG] = 0x34,
+	[OFFSET_FIFO_ADDR_CLR] = 0x38,
+	[OFFSET_SDA_TIMING] = 0x3c,
+	[OFFSET_TRANSFER_LEN_AUX] = 0x44,
+	[OFFSET_CLOCK_DIV] = 0x48,
+	[OFFSET_SOFTRESET] = 0x50,
+	[OFFSET_MULTI_DMA] = 0x8c,
+	[OFFSET_SCL_MIS_COMP_POINT] = 0x90,
+	[OFFSET_DEBUGSTAT] = 0xe4,
+	[OFFSET_DEBUGCTRL] = 0xe8,
+	[OFFSET_FIFO_STAT] = 0xf4,
+	[OFFSET_FIFO_THRESH] = 0xf8,
+	[OFFSET_DCM_EN] = 0xf88,
+};
+
  struct mtk_i2c_compatible {
  	const struct i2c_adapter_quirks *quirks;
  	const u16 *regs;
@@ -442,6 +471,19 @@ static const struct mtk_i2c_compatible mt8186_compat = {
  	.max_dma_support = 36,
  };
+static const struct mtk_i2c_compatible mt8188_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 mt8192_compat = {
  	.quirks = &mt8183_i2c_quirks,
  	.regs = mt_i2c_regs_v2,
@@ -465,6 +507,7 @@ static const struct of_device_id mtk_i2c_of_match[] = {
  	{ .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat },
  	{ .compatible = "mediatek,mt8183-i2c", .data = &mt8183_compat },
  	{ .compatible = "mediatek,mt8186-i2c", .data = &mt8186_compat },
+	{ .compatible = "mediatek,mt8188-i2c", .data = &mt8188_compat },
  	{ .compatible = "mediatek,mt8192-i2c", .data = &mt8192_compat },
  	{}
  };



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