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Date: Thu, 10 Aug 2017 15:22:40 +0800 From: Jun Gao <jun.gao@...iatek.com> To: Wolfram Sang <wsa@...-dreams.de> CC: Matthias Brugger <matthias.bgg@...il.com>, <srv_heupstream@...iatek.com>, <devicetree@...r.kernel.org>, <linux-i2c@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>, <linux-mediatek@...ts.infradead.org> Subject: Re: [RESEND PATCH 2/2] i2c: mediatek: Add i2c compatible for MediaTek MT7622 On Thu, 2017-08-10 at 10:27 +0800, Jun Gao wrote: > From: Jun Gao <jun.gao@...iatek.com> > > 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 > Signed-off-by: Jun Gao <jun.gao@...iatek.com> > --- > 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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