Subject: [linux-sunxi] Re: [PATCH 4/4] simplefb: add clock handling code

From: [email-masked] (Thierry Reding)
Date: Tue, 26 Aug 2014 09:52:49 +0200

On Mon, Aug 25, 2014 at 05:09:00PM +0200, Luc Verhaegen wrote:
> On Mon, Aug 25, 2014 at 05:05:04PM +0200, Thierry Reding wrote:
> > 
> > No. simplefb just wants to write to some memory that hardware has been
> > set up to scan out. The platform requires that the clocks be on.
> 
> Simplefb also requires that the memory is there and is persistent. Fine 
> for discrete graphics cards, fine for rpi where most things are hidden 
> from the ARM core anyway, not so fine for anybody else.

I don't understand. This patch series isn't changing anything about the
memory aspects of the driver yet it's working for you on sunxi, isn't
it? So it can't be all that broken.

Thierry
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