linux-kernel - Re: [PATCH V3 2/4] backlight: qcom-wled: Add callback functions

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Date:   Wed, 11 Mar 2020 10:30:47 +0000
From:   Daniel Thompson <daniel.thompson@...aro.org>
To:     kgunda@...eaurora.org
Cc:     bjorn.andersson@...aro.org, jingoohan1@...il.com,
        lee.jones@...aro.org, b.zolnierkie@...sung.com,
        dri-devel@...ts.freedesktop.org, jacek.anaszewski@...il.com,
        pavel@....cz, robh+dt@...nel.org, mark.rutland@....com,
        linux-leds@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Andy Gross <agross@...nel.org>,
        linux-arm-msm@...r.kernel.org, linux-fbdev@...r.kernel.org,
        linux-arm-msm-owner@...r.kernel.org
Subject: Re: [PATCH V3 2/4] backlight: qcom-wled: Add callback functions

On Wed, Mar 11, 2020 at 12:11:00PM +0530, kgunda@...eaurora.org wrote:
> On 2020-03-10 20:57, Daniel Thompson wrote:
> > On Mon, Mar 09, 2020 at 06:56:00PM +0530, Kiran Gunda wrote:
> > > Add cabc_config, sync_toggle, wled_ovp_fault_status and wled_ovp_delay
> > > callback functions to prepare the driver for adding WLED5 support.
> > > 
> > > Signed-off-by: Kiran Gunda <kgunda@...eaurora.org>
> > 
> > Overall this code would a lot easier to review if
> > > ---
> > >  drivers/video/backlight/qcom-wled.c | 196
> > > +++++++++++++++++++++++-------------
> > >  1 file changed, 126 insertions(+), 70 deletions(-)
> > > 
> > > diff --git a/drivers/video/backlight/qcom-wled.c
> > > b/drivers/video/backlight/qcom-wled.c
> > > index 3d276b3..b73f273 100644
> > > --- a/drivers/video/backlight/qcom-wled.c
> > > +++ b/drivers/video/backlight/qcom-wled.c
> > > @@ -128,6 +128,7 @@ struct wled_config {
> > >  	bool cs_out_en;
> > >  	bool ext_gen;
> > >  	bool cabc;
> > > +	bool en_cabc;
> > 
> > Does this ever get set to true?
> > 
> Yes. If user wants use the cabc pin to control the brightness and
> use the "qcom,cabc" DT property in the device tree.

That sounds like what you intended the code to do!

Is the code that does this present in the patch? I could not find
it.


Daniel.