linux-kernel - Re: [PATCH v12 09/11] backlight: pwm

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Date:   Thu, 16 Apr 2020 10:55:27 -0700
From:   Guru Das Srinagesh <gurus@...eaurora.org>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     linux-pwm@...r.kernel.org,
        Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Subbaraman Narayanamurthy <subbaram@...eaurora.org>,
        David Collins <collinsd@...eaurora.org>,
        linux-kernel@...r.kernel.org,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Jingoo Han <jingoohan1@...il.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        dri-devel@...ts.freedesktop.org, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v12 09/11] backlight: pwm_bl: Use 64-bit division function

On Thu, Apr 16, 2020 at 10:44:20AM +0100, Lee Jones wrote:
> On Wed, 08 Apr 2020, Guru Das Srinagesh wrote:
> 
> > Since the PWM framework is switching struct pwm_state.period's datatype
> > to u64, prepare for this transition by using div_u64 to handle a 64-bit
> > dividend instead of a straight division operation.
> > 
> > Cc: Lee Jones <lee.jones@...aro.org>
> > Cc: Daniel Thompson <daniel.thompson@...aro.org>
> > Cc: Jingoo Han <jingoohan1@...il.com>
> > Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
> > Cc: linux-pwm@...r.kernel.org
> > Cc: dri-devel@...ts.freedesktop.org
> > Cc: linux-fbdev@...r.kernel.org
> > 
> > Signed-off-by: Guru Das Srinagesh <gurus@...eaurora.org>
> > Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>
> > ---
> >  drivers/video/backlight/pwm_bl.c | 3 ++-
> >  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> I see that this is part of a large set, but the remainder of the
> patches have been hidden from me.

Sorry about that, the full series is here: [1].

> Does this mean I can apply this patch on its own?

I'll defer to Uwe on this point as I am not sure of the implications of
taking in this single patch and not the entire series.

Thank you.

Guru Das.

[1] https://www.spinics.net/lists/linux-pwm/msg12131.html