On Sat, Jun 19, 2021 at 5:23 PM <kewei.xu@xxxxxxxxxxxx> wrote: > In the commit be5ce0e97cc7 ("i2c: mediatek: Add i2c ac-timing adjust > support"), the I2C timing calculation has been revised to support > ac-timing, revised to support ac-timing adjustment, however that will > break on some I2C components. As a result we want to introduce a new > setting "default-adjust-timing" so those components can choose to use the > old (default) timing algorithm. Could you provide a proper "Fixes" tag. > @@ -544,6 +558,7 @@ static void mtk_i2c_init_hw(struct mtk_i2c *i2c) > OFFSET_HS_STA_STO_AC_TIMING); > } > } > + mtk_i2c_writew(i2c, ext_conf_val, OFFSET_EXT_CONF); This looks like another fix. Could you separate this into another patch or explain more why it needs to be in the patch? > @@ -1284,6 +1355,8 @@ static int mtk_i2c_parse_dt(struct device_node *np, struct mtk_i2c *i2c) > i2c->have_pmic = of_property_read_bool(np, "mediatek,have-pmic"); > i2c->use_push_pull = > of_property_read_bool(np, "mediatek,use-push-pull"); > + i2c->default_timing_adjust = > + of_property_read_bool(np, "mediatek,default-timing-adjust"); Need a DT-binding document patch for the newly added property.