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i2c: mediatek: Add i2c compatible for MediaTek MT7622

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Add i2c compatible for MT7622. Compare to MT8173 i2c controller,
MT7622 limits message numbers to 255, and does not support 4GB
DMA mode.

Signed-off-by: Jun Gao <jun.gao@mediatek.com>
Reviewed-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Jun Gao 2017-08-21 11:36:54 +08:00 committed by Wolfram Sang
parent c50b2e9379
commit 1304fe0916
1 changed files with 14 additions and 0 deletions
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14
drivers/i2c/busses/i2c-mt65xx.c
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@ -172,6 +172,10 @@ static const struct i2c_adapter_quirks mt6577_i2c_quirks = {
.max_comb_2nd_msg_len = 31,
};
static const struct i2c_adapter_quirks mt7622_i2c_quirks = {
.max_num_msgs = 255,
};
static const struct mtk_i2c_compatible mt6577_compat = {
.quirks = &mt6577_i2c_quirks,
.pmic_i2c = 0,
@ -190,6 +194,15 @@ static const struct mtk_i2c_compatible mt6589_compat = {
.support_33bits = 0,
};
static const struct mtk_i2c_compatible mt7622_compat = {
.quirks = &mt7622_i2c_quirks,
.pmic_i2c = 0,
.dcm = 1,
.auto_restart = 1,
.aux_len_reg = 1,
.support_33bits = 0,
};
static const struct mtk_i2c_compatible mt8173_compat = {
.pmic_i2c = 0,
.dcm = 1,
@ -201,6 +214,7 @@ static const struct mtk_i2c_compatible mt8173_compat = {
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,mt8173-i2c", .data = &mt8173_compat },
{}
};