| Message ID | 1502264631-12572-3-git-send-email-jun.gao@mediatek.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, 2017-08-09 at 15:43 +0800, Jun Gao wrote: > From: Jun Gao <jun.gao@mediatek.com> > > Add i2c compatible for MT7622. Compare to MT8173 i2c controller, > MT7622 limit message size to 255, and not support 4GB DMA mode. Jun, Do you mean message numbers? Joe.C > > Signed-off-by: Jun Gao <jun.gao@mediatek.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 }, > {} > };
On Wed, 2017-08-09 at 17:40 +0800, Yingjoe Chen wrote: > On Wed, 2017-08-09 at 15:43 +0800, Jun Gao wrote: > > From: Jun Gao <jun.gao@mediatek.com> > > > > Add i2c compatible for MT7622. Compare to MT8173 i2c controller, > > MT7622 limit message size to 255, and not support 4GB DMA mode. > > > Jun, > > Do you mean message numbers? > > > Joe.C > Yes, bit7~bit0 of i2c register TRANSAC_LEN will be used as message numbers. Jun > > > > Signed-off-by: Jun Gao <jun.gao@mediatek.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 }, > > {} > > }; > >
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 }, {} };