[PATCH] ARM: dts sunxi: Relax a bit the CMA pool allocation range

[Chen-Yu Tsai]

On Sat, Jul 4, 2020 at 9:08 PM Maxime Ripard <maxime at cerno.tech> wrote:
>
> The hardware codec on the A10, A10s, A13 and A20 needs buffer in the
> first 256MB of RAM. This was solved by setting the CMA pool at a fixed
> address in that range.
>
> However, in recent kernels there's something else that comes in and
> reserve some range that end up conflicting with our default pool
> requirement, and thus makes its reservation fail.
>
> The video codec will then use buffers from the usual default pool,
> outside of the range it can access, and will fail to decode anything.
>
> Since we're only concerned about that 256MB, we can however relax the
> allocation to just specify the range that's allowed, and not try to
> enforce a specific address.
>
> Cc: Paul Kocialkowski <paul.kocialkowski at bootlin.com>
> Fixes: 5949bc5602cc ("ARM: dts: sun4i-a10: Add Video Engine and reserved memory nodes")
> Fixes: 960432010156 ("ARM: dts: sun5i: Add Video Engine and reserved memory nodes")
> Fixes: c2a641a74850 ("ARM: dts: sun7i-a20: Add Video Engine and reserved memory nodes")
> Signed-off-by: Maxime Ripard <maxime at cerno.tech>

Acked-by: Chen-Yu Tsai <wens at csie.org>