linux-kernel - Re: [PATCH] drm/ssd130x: Fix pre-charge period setting

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Date:   Fri, 8 Jul 2022 18:03:21 -0300
From:   Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
To:     Javier Martinez Canillas <javierm@...hat.com>
Cc:     dri-devel <dri-devel@...ts.freedesktop.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        David Airlie <airlied@...ux.ie>
Subject: Re: [PATCH] drm/ssd130x: Fix pre-charge period setting

On Thu, Jul 7, 2022 at 5:37 AM Javier Martinez Canillas
<javierm@...hat.com> wrote:
>
> Hello Ezequiel,
>
> Thanks a lot for your patch.
>
> On 7/6/22 20:41, Ezequiel Garcia wrote:
> > Fix small typo which causes the mask for the 'precharge1' setting
> > to be used with the 'precharge2' value.
> >
> > Signed-off-by: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>
> > ---
> >  drivers/gpu/drm/solomon/ssd130x.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/gpu/drm/solomon/ssd130x.c b/drivers/gpu/drm/solomon/ssd130x.c
> > index 08394444dd6e..f4886e66ff34 100644
> > --- a/drivers/gpu/drm/solomon/ssd130x.c
> > +++ b/drivers/gpu/drm/solomon/ssd130x.c
> > @@ -350,7 +350,7 @@ static int ssd130x_init(struct ssd130x_device *ssd130x)
> >
> >       /* Set precharge period in number of ticks from the internal clock */
> >       precharge = (SSD130X_SET_PRECHARGE_PERIOD1_SET(ssd130x->prechargep1) |
> > -                  SSD130X_SET_PRECHARGE_PERIOD1_SET(ssd130x->prechargep2));
> > +                  SSD130X_SET_PRECHARGE_PERIOD2_SET(ssd130x->prechargep2));
>
> It's a typo indeed. Nice catch!
>
> I wonder how did you notice this. Or was it just looking at the code ?
>

Indeed, I was just reviewing the code while getting a SH1106 display to work.

> Acked-by: Javier Martinez Canillas <javierm@...hat.com>
>
> I'll push it to drm-misc (drm-misc-fixes).
>

Thanks!
Ezequiel

> --
> Best regards,
>
> Javier Martinez Canillas
> Linux Engineering
> Red Hat
>