From: Geert Uytterhoeven <geert@linux-m68k.org>
To: Javier Martinez Canillas <javierm@redhat.com>
Cc: Chen-Yu Tsai <wens@kernel.org>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Neil Armstrong <narmstrong@baylibre.com>,
David Airlie <airlied@linux.ie>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
DRI Development <dri-devel@lists.freedesktop.org>,
Rob Herring <robh+dt@kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@vger.kernel.org>, Mark Brown <broonie@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: Re: [PATCH v3 2/5] dt-bindings: display: ssd1307fb: Extend schema for SPI controllers
Date: Wed, 13 Apr 2022 12:38:26 +0200 [thread overview]
Message-ID: <CAMuHMdVTPquOXGwf3YcMDHYyW9=UjRyk7Qhy+HNVThbk355wcQ@mail.gmail.com> (raw)
In-Reply-To: <ddf107c7-5108-f366-45a8-e7244cdcd209@redhat.com>
Hi Javier,
On Wed, Apr 13, 2022 at 11:44 AM Javier Martinez Canillas
<javierm@redhat.com> wrote:
> On 4/13/22 10:04, Geert Uytterhoeven wrote:
> > On Tue, Apr 12, 2022 at 6:27 PM Javier Martinez Canillas
> > <javierm@redhat.com> wrote:
> >> The Solomon SSD130x OLED displays can either have an I2C or SPI interface,
> >> add to the schema the properties and examples for OLED devices under SPI.
> >>
> >> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
> >> Acked-by: Mark Brown <broonie@kernel.org>
> >> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> >> ---
> >>
> >> Changes in v3:
> >> - Add a comment to the properties required for SPI (Geert Uytterhoeven)
> >
> > Thanks for the update!
> >
> >> --- a/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
> >> +++ b/Documentation/devicetree/bindings/display/solomon,ssd1307fb.yaml
> >> @@ -38,9 +38,16 @@ properties:
> >> reset-gpios:
> >> maxItems: 1
> >>
> >> + # Only required for SPI
> >> + dc-gpios:
> >> + maxItems: 1
> >
> > Actually I meant to also add a description, like for vbat-supply below,
> > to explain the meaning of "dc".
> >
>
> Ahh, sorry for misunderstanding you! Something like the following looks good ?
>
> # Only required for SPI
> dc-gpios:
> description:
> GPIO connected to the controller's D/C# (Data/Command) pin,
> that is needed for 4-wire SPI to tell the controller if the
> data sent is for a command register or the display data RAM
> maxItems: 1
>
> If you agree with that, then can squash before pushing or add it to a v4
> if another revision is needed.
Thanks, LGTM.
Gr{oetje,eeting}s,
Geert
--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
next prev parent reply other threads:[~2022-04-13 10:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-12 16:27 [PATCH v3 0/5] drm/solomon: Add SSD130x OLED displays SPI support Javier Martinez Canillas
2022-04-12 16:27 ` [PATCH v3 1/5] dt-bindings: display: ssd1307fb: Deprecate "-i2c" compatible strings Javier Martinez Canillas
2022-04-12 16:27 ` [PATCH v3 2/5] dt-bindings: display: ssd1307fb: Extend schema for SPI controllers Javier Martinez Canillas
2022-04-13 8:04 ` Geert Uytterhoeven
2022-04-13 9:44 ` Javier Martinez Canillas
2022-04-13 10:38 ` Geert Uytterhoeven [this message]
2022-04-12 16:27 ` [PATCH v3 3/5] drm/solomon: Add ssd130x new compatible strings and deprecate old ones Javier Martinez Canillas
2022-04-12 16:27 ` [PATCH v3 4/5] drm/solomon: Move device info from ssd130x-i2c to the core driver Javier Martinez Canillas
2022-04-13 10:46 ` Andy Shevchenko
2022-04-13 11:03 ` Javier Martinez Canillas
2022-04-12 16:27 ` [PATCH v3 5/5] drm/solomon: Add SSD130x OLED displays SPI support Javier Martinez Canillas
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