linux-kernel - Re: [PATCH v9 4/5] dt-bindings: backlight: Add led-backlight binding

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Date:   Tue, 8 Oct 2019 15:00:58 -0500
From:   Rob Herring <robh+dt@...nel.org>
To:     Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc:     Jean-Jacques Hiblot <jjhiblot@...com>, Pavel Machek <pavel@....cz>,
        Sebastian Reichel <sre@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Lee Jones <lee.jones@...aro.org>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Dan Murphy <dmurphy@...com>,
        Linux LED Subsystem <linux-leds@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Tomi Valkeinen <tomi.valkeinen@...com>
Subject: Re: [PATCH v9 4/5] dt-bindings: backlight: Add led-backlight binding

On Tue, Oct 8, 2019 at 12:17 PM Jacek Anaszewski
<jacek.anaszewski@...il.com> wrote:
>
> On 10/8/19 5:00 PM, Rob Herring wrote:
> > On Tue, Oct 8, 2019 at 8:30 AM Jean-Jacques Hiblot <jjhiblot@...com> wrote:
> >>
> >> Rob,
> >>
> >> On 08/10/2019 14:51, Jean-Jacques Hiblot wrote:
> >>> Hi Rob,
> >>>
> >>> On 07/10/2019 18:15, Rob Herring wrote:
> >>>> Please send DT bindings to DT list or it's never in my queue. IOW,
> >>>> send patches to the lists that get_maintainers.pl tells you to.
> >>>>
> >>>> On Mon, Oct 7, 2019 at 7:45 AM Jean-Jacques Hiblot <jjhiblot@...com>
> >>>> wrote:
> >>>>> Add DT binding for led-backlight.
> >>>>>
> >>>>> Signed-off-by: Jean-Jacques Hiblot <jjhiblot@...com>
> >>>>> Reviewed-by: Daniel Thompson <daniel.thompson@...aro.org>
> >>>>> Reviewed-by: Sebastian Reichel <sebastian.reichel@...labora.com>
> >>>>> ---
> >>>>>   .../bindings/leds/backlight/led-backlight.txt | 28
> >>>>> +++++++++++++++++++
> >>>>>   1 file changed, 28 insertions(+)
> >>>>>   create mode 100644
> >>>>> Documentation/devicetree/bindings/leds/backlight/led-backlight.txt
> >>>> Please make this a DT schema.
> >>>
> >>> OK.
> >>>
> >>> BTW I used "make dt_binding_check" but had to fix a couple of YAMLs
> >>> file to get it to work. Do you have a kernel tree with already all the
> >>> YAML files in good shape ? Or do you want me to post the changes to
> >>> devicetree@...r.kernel.org ?
> >>>
> >>>
> >>>>
> >>>>> diff --git
> >>>>> a/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt
> >>>>> b/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt
> >>>>> new file mode 100644
> >>>>> index 000000000000..4c7dfbe7f67a
> >>>>> --- /dev/null
> >>>>> +++
> >>>>> b/Documentation/devicetree/bindings/leds/backlight/led-backlight.txt
> >>>>> @@ -0,0 +1,28 @@
> >>>>> +led-backlight bindings
> >>>>> +
> >>>>> +This binding is used to describe a basic backlight device made of
> >>>>> LEDs.
> >>>>> +It can also be used to describe a backlight device controlled by
> >>>>> the output of
> >>>>> +a LED driver.
> >>>>> +
> >>>>> +Required properties:
> >>>>> +  - compatible: "led-backlight"
> >>>>> +  - leds: a list of LEDs
> >>>> 'leds' is already used as a node name and mixing is not ideal.
>
> for the record: child node names (if that was what you had on mind)
> have singular form 'led'.

I did actually grep this and not rely on my somewhat faulty memory:

$ git grep '\sleds {' | wc -l
463

These are mostly gpio-leds I think.

Rob