[PATCH v4 3/3] i2c: mediatek: Add i2c compatible for MediaTek MT7622
From: Jun Gao <hidden>
Date: 2017-08-21 03:37:11
Also in:
linux-arm-kernel, linux-i2c, linux-mediatek, lkml
Subsystem:
i2c subsystem, i2c subsystem host drivers, mediatek i2c controller driver, the rest · Maintainers:
Andi Shyti, Qii Wang, Linus Torvalds
From: Jun Gao <redacted> 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 <redacted> Reviewed-by: Yingjoe Chen <redacted> --- drivers/i2c/busses/i2c-mt65xx.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+)
diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 9bedf0b..09d288c 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c@@ -172,6 +172,10 @@ struct mtk_i2c { .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 @@ struct mtk_i2c { .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 @@ struct mtk_i2c { 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 }, {} };
--
1.8.1.1