On Wed, Jan 2, 2019 at 7:38 PM <chuanjia....@mediatek.com> wrote: > > From: "chuanjia.liu" <chuanjia....@mediatek.com> > > Virtual gpio only used inside SOC and not being exported to outside SOC. > Some modules use virtual gpio as eint and doesn't need SMT. > So this patch add EINT support to virtual GPIOs. > > Signed-off-by: chuanjia.liu <chuanjia....@mediatek.com>
Acked-by: Sean Wang <sean.w...@kernel.org> BTW, if you were worried about a patch is lost, you could use RESEND in the tag is fine. > --- > change note: > v5: This patch is the same as v4,re-upload due to > mail permissions issues > --- > drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c | 8 +++++++- > 1 file changed, 7 insertions(+), 1 deletion(-) > > diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c > b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c > index 4a9e0d4c2bbc..b1c368455d30 100644 > --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c > +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c > @@ -290,7 +290,13 @@ static int mtk_xt_set_gpio_as_eint(void *data, unsigned > long eint_n) > return err; > > err = mtk_hw_set_value(hw, desc, PINCTRL_PIN_REG_SMT, MTK_ENABLE); > - if (err) > + /* SMT is supposed to be supported by every real GPIO and doesn't > + * support virtual GPIOs, so the extra condition err != -ENOTSUPP > + * is just for adding EINT support to these virtual GPIOs. It should > + * add an extra flag in the pin descriptor when more pins with > + * distinctive characteristic come out. > + */ > + if (err && err != -ENOTSUPP) > return err; > > return 0; > -- > 2.19.1 >
