linux-kernel - Re: [PATCH 7/7] [NOT FOR MERGE] ARM: dts: sun8i: a83t: bananapi-m3: Enable OV8865 camera

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Message-ID: <20200827153843.mjcnc5fiuxj3df3s@gilmour.lan>
Date:   Thu, 27 Aug 2020 17:38:43 +0200
From:   Maxime Ripard <maxime@...no.tech>
To:     Kévin L'hôpital <kevin.lhopital@...tlin.com>
Cc:     linux-media@...r.kernel.org, mchehab@...nel.org,
        robh+dt@...nel.org, mark.rutland@....com, wens@...e.org,
        yong.deng@...ewell.com, p.zabel@...gutronix.de,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        paul.kocialkowski@...tlin.com, thomas.petazzoni@...tlin.com
Subject: Re: [PATCH 7/7] [NOT FOR MERGE] ARM: dts: sun8i: a83t: bananapi-m3:
 Enable OV8865 camera

Hi,

On Wed, Aug 26, 2020 at 10:58:34AM +0200, Kévin L'hôpital wrote:
> > > +&ccu {
> > > +	assigned-clocks = <&ccu CLK_CSI_MCLK>;
> > > +	assigned-clock-parents = <&osc24M>;
> > > +	assigned-clock-rates = <24000000>;
> > > +};  
> > 
> > Why do you need to use assigned-clocks here?
> 
> I could do it in the ov8865 node, does it sound good to you ?

I mean, it depends on why you want to do it :)

If that's because the sensor expects a clock in a particular clock
range, then it should be enforced in the sensor driver itself.

Maxime

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