linux-kernel - Re: [linux-sunxi] Re: [PATCH v6 14/22] dt-bindings: sun6i-dsi: Add A64 DSI compatible (w/ A31 fallback)

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Date:   Tue, 29 Jan 2019 15:54:03 +0100
From:   Maxime Ripard <maxime.ripard@...tlin.com>
To:     Jagan Teki <jagan@...nedev.com>
Cc:     Jagan Teki <jagan@...rulasolutions.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, Chen-Yu Tsai <wens@...e.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        devicetree@...r.kernel.org,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-amarula@...rulasolutions.com, linux-sunxi@...glegroups.com
Subject: Re: [linux-sunxi] Re: [PATCH v6 14/22] dt-bindings: sun6i-dsi: Add
 A64 DSI compatible (w/ A31 fallback)

On Sat, Jan 26, 2019 at 09:39:00PM +0530, Jagan Teki wrote:
> On 25/01/19 9:22 PM, Maxime Ripard wrote:
> > On Fri, Jan 25, 2019 at 01:28:52AM +0530, Jagan Teki wrote:
> > > The MIPI DSI controller in Allwinner A64 is similar to A33.
> > > 
> > > But unlike A33, A64 doesn't have DSI_SCLK gating which eventually
> > > set the mod clock rate for the controller.
> > > 
> > > So, use the DSI_DPHY gating for the similar purpose of mod clock
> > > so-that the controller can operate properly.
> > > 
> > > Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
> > > Reviewed-by: Rob Herring <robh@...nel.org>
> > > ---
> > >   Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt | 1 +
> > >   1 file changed, 1 insertion(+)
> > > 
> > > diff --git a/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt b/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> > > index 69e233e8fad1..dbda2e567760 100644
> > > --- a/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> > > +++ b/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> > > @@ -12,6 +12,7 @@ The DSI Encoder generates the DSI signal from the TCON's.
> > >   Required properties:
> > >     - compatible: value must be one of:
> > >       * allwinner,sun6i-a31-mipi-dsi
> > > +    * "allwinner,sun50i-a64-mipi-dsi", "allwinner,sun6i-a31-mipi-dsi"
> > 
> > The other line doesn't have quotes, we should be consistent
> 
> You mean to say, remove quotes like this
> 
> allwinner,sun50i-a64-mipi-dsi, allwinner,sun6i-a31-mipi-dsi

Yep

> This make confusion with comma with allwinner vs next compatible string
> isn't it? (In fact I did follow the similar like TCON in sun4i-drm.txt)

There's no really clear consensus here, andd i don't really have a
strong opinion on the matter either. Since the YAML schemas are going
to have it without double quotes, I guess we should use that
convention as well, but we want to remain consistent at least.

Maxime

-- 
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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