Re: [RESEND PATCH 2/2] i2c: mediatek: Add i2c compatible for MediaTek MT7622
From: Jun Gao <hidden>
Date: 2017-08-10 07:22:50
Also in:
linux-arm-kernel, linux-i2c, linux-mediatek, lkml
On Thu, 2017-08-10 at 10:27 +0800, Jun Gao wrote:
From: Jun Gao <jun.gao-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> Add i2c compatible for MT7622. Compare to MT8173 i2c controller, MT7622 limits message numbers to 255, and does not support 4GB DMA mode.
These two resend patches only modify commit message. Thanks! Jun
quoted hunk ↗ jump to hunk
Signed-off-by: Jun Gao <jun.gao-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> --- drivers/i2c/busses/i2c-mt65xx.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 9bedf0b..2c7f847 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c@@ -172,6 +172,14 @@ struct mtk_i2c { .max_comb_2nd_msg_len = 31, }; +static const struct i2c_adapter_quirks mt7622_i2c_quirks = { + .max_num_msgs = 255, + .max_write_len = 65535, + .max_read_len = 65535, + .max_comb_1st_msg_len = 65535, + .max_comb_2nd_msg_len = 65535, +}; + static const struct mtk_i2c_compatible mt6577_compat = { .quirks = &mt6577_i2c_quirks, .pmic_i2c = 0,@@ -190,6 +198,15 @@ 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 +218,7 @@ 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 }, {} };
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