linux-kernel - Re: [PATCH 4/6] ARM: dts: sunxi: h3-h5: Add pinmux setting for CSI MCLK on PE1

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Message-ID: <CAGb2v67nAGC0xwgtq+_mYv_ZRmhBQsPdLbbJ6thfKDNY456sYg@mail.gmail.com>
Date:   Thu, 24 Jan 2019 18:16:55 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Yong Deng <yong.deng@...ewell.com>,
        Jagan Teki <jagan@...rulasolutions.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-media <linux-media@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Chen-Yu Tsai <wens@...e.org>
Subject: Re: [PATCH 4/6] ARM: dts: sunxi: h3-h5: Add pinmux setting for CSI
 MCLK on PE1

On Mon, Dec 3, 2018 at 5:46 PM Jagan Teki <jagan@...rulasolutions.com> wrote:
>
> On Fri, Nov 30, 2018 at 1:28 PM Chen-Yu Tsai <wens@...e.org> wrote:
> >
> > Some camera modules have the SoC feeding a master clock to the sensor
> > instead of having a standalone crystal. This clock signal is generated
> > from the clock control unit and output from the CSI MCLK function of
> > pin PE1.
> >
> > Add a pinmux setting for it for camera sensors to reference.
> >
> > Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> > ---
>
> On Fri, Nov 30, 2018 at 1:29 PM Chen-Yu Tsai <wens@...e.org> wrote:
> >
> > The CSI controller found on the H3 (and H5) is a reduced version of the
> > one found on the A31. It only has 1 channel, instead of 4 channels for
> > time-multiplexed BT.656. Since the H3 is a reduced version, it cannot
> > "fallback" to a compatible that implements more features than it
> > supports.
> >
> > Drop the A31 fallback compatible.
> >
> > Fixes: f89120b6f554 ("ARM: dts: sun8i: Add the H3/H5 CSI controller")
> > Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> > ---
>
> Reviewed-by: Jagan Teki <jagan@...rulasolutions.com>

Not merging this one, as there are no boards in tree that directly use this.

ChenYu