From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Icenowy Zheng <icenowy-ymACFijhrKM@public.gmane.org>
Cc: Rob Herring <robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
linux-kernel
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-clk-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
Subject: Re: [PATCH 2/3] clk: sunxi-ng: add support for PRCM CCUs
Date: Thu, 2 Mar 2017 15:09:31 +0100 [thread overview]
Message-ID: <20170302140931.tq3vpncln6giyjpr@lukather> (raw)
In-Reply-To: <20170301152236.MUXmRgOe-3YhIAYTWRJA0PDqKvflMoHmW9unr2Ajn@public.gmane.org>
[-- Attachment #1: Type: text/plain, Size: 969 bytes --]
On Wed, Mar 01, 2017 at 08:22:13PM +0800, Icenowy Zheng wrote:
> > I'm a bit worried by that to be honest. You claim to support the A31,
> > yet jugdging by the current state of that code you never actually
> > tested it on that SoC.
> >
> > What makes you say that the PRCM clocks are the same for the H3 and
> > A64? We have to be sure, otherwise we might not be able to get the DT
> > binding right from the very beginning, and we might not be able to fix
> > it later.
>
> In fact, if we worry about this, we shouldn't make r-ccu, as
> dedicated clocks are more easy to fix.
>
> For newer SoCs' PRCM, we never have enough documents, and Allwinner
> have said that they cannot provide it. (I asked them for this.)
>
> The best solution is to implement mature enough dedicated clocks
> before we convert to ccu.
What do you mean by dedicated clocks?
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
next prev parent reply other threads:[~2017-03-02 14:09 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-01 12:22 [PATCH 2/3] clk: sunxi-ng: add support for PRCM CCUs Icenowy Zheng
[not found] ` <20170301152236.MUXmRgOe-3YhIAYTWRJA0PDqKvflMoHmW9unr2Ajn@public.gmane.org>
2017-03-02 14:09 ` Maxime Ripard [this message]
2017-03-02 15:13 ` Icenowy Zheng
[not found] ` <2899221488467633-+LZv1VrpgWBxpj1cXAZ9Bg@public.gmane.org>
2017-03-03 14:51 ` maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8
-- strict thread matches above, loose matches on Subject: below --
2017-03-01 4:15 [PATCH 0/3] Add support for the R_CCU on Allwinner H3/A64 SoCs Icenowy Zheng
[not found] ` <20170301041541.24388-1-icenowy-ymACFijhrKM@public.gmane.org>
2017-03-01 4:15 ` [PATCH 2/3] clk: sunxi-ng: add support for PRCM CCUs Icenowy Zheng
[not found] ` <20170301041541.24388-3-icenowy-ymACFijhrKM@public.gmane.org>
2017-03-01 10:47 ` Maxime Ripard
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