diff mbox

pinctrl: mediatek: correct debounce time unit in mtk_gpio_set_debounce

Message ID 1459518711-61619-1-git-send-email-yingjoe.chen@mediatek.com
State Superseded
Headers show

Commit Message

Yingjoe Chen April 1, 2016, 1:51 p.m. UTC
The debounce time unit for gpio_chip.set_debounce is us but
mtk_gpio_set_debounce regard it as ms.
Fix this by correct debounce time array dbnc_arr so it can find correct
debounce setting.

Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>

---
 drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

-- 
1.9.1

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Comments

Yingjoe Chen April 1, 2016, 2:34 p.m. UTC | #1
Daniel,

Thanks for your review.

On Fri, 2016-04-01 at 22:28 +0800, Daniel Kurtz wrote:
> Hi Yingjoe,

> 

> On Fri, Apr 1, 2016 at 9:51 PM, Yingjoe Chen <yingjoe.chen@mediatek.com> wrote:

> > The debounce time unit for gpio_chip.set_debounce is us but

> > mtk_gpio_set_debounce regard it as ms.

> > Fix this by correct debounce time array dbnc_arr so it can find correct

> > debounce setting.

> 

> This patch also changes the first entry to 500 usec.  At least mention why.

> 


OK. Will add this:

Debounce time for first debounce setting is 500us, correct this as well.

While I'm at it, also change the debounce time array name to
"debounce_time" for readability.


> >

> > Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>

> > ---

> >  drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 3 ++-

> >  1 file changed, 2 insertions(+), 1 deletion(-)

> >

> > diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c

> > index 2bbe6f7..be72325 100644

> > --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c

> > +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c

> > @@ -1004,7 +1004,8 @@ static int mtk_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,

> >         struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent);

> >         int eint_num, virq, eint_offset;

> >         unsigned int set_offset, bit, clr_bit, clr_offset, rst, i, unmask, dbnc;

> > -       static const unsigned int dbnc_arr[] = {0 , 1, 16, 32, 64, 128, 256};

> > +       static const unsigned int dbnc_arr[] = {500, 1000, 16000, 32000, 64000,

> > +                                               128000, 256000};

> 

> While you are at it, can you please rename this to something more

> readable than "dbnc"?



Will change to debounce_time.

Joe.C


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diff mbox

Patch

diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
index 2bbe6f7..be72325 100644
--- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
+++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c
@@ -1004,7 +1004,8 @@  static int mtk_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
 	struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent);
 	int eint_num, virq, eint_offset;
 	unsigned int set_offset, bit, clr_bit, clr_offset, rst, i, unmask, dbnc;
-	static const unsigned int dbnc_arr[] = {0 , 1, 16, 32, 64, 128, 256};
+	static const unsigned int dbnc_arr[] = {500, 1000, 16000, 32000, 64000,
+						128000, 256000};
 	const struct mtk_desc_pin *pin;
 	struct irq_data *d;