linux-kernel - Re: [PATCH 2/2] soc: sunxi: mbus: Remove DE2 display engine compatibles

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Date:   Wed, 27 Jan 2021 14:03:03 +0100
From:   Paul Kocialkowski <paul.kocialkowski@...tlin.com>
To:     devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Cc:     Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Daniel Vetter <daniel.vetter@...ll.ch>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>
Subject: Re: [PATCH 2/2] soc: sunxi: mbus: Remove DE2 display engine
 compatibles

Hi,

On Fri 15 Jan 21, 18:58, Paul Kocialkowski wrote:
> The DE2 display engine hardware takes physical addresses that do not
> need PHYS_BASE subtracted. As a result, they should not be present
> on the mbus driver match list. Remove them.
> 
> This was tested on the A83T, along with the patch allowing the DMA
> range map to be non-NULL and restores a working display.

Could we get this merged ASAP (in this RC cycle), hopefully with the patch
that superseded 1/2 from this series so that we don't end up with either
CSI or DE2 broken in the next release?

Cheers,

Paul

> Fixes: b4bdc4fbf8d0 ("soc: sunxi: Deal with the MBUS DMA offsets in a central place")
> Signed-off-by: Paul Kocialkowski <paul.kocialkowski@...tlin.com>
> ---
>  drivers/soc/sunxi/sunxi_mbus.c | 5 -----
>  1 file changed, 5 deletions(-)
> 
> diff --git a/drivers/soc/sunxi/sunxi_mbus.c b/drivers/soc/sunxi/sunxi_mbus.c
> index e9925c8487d7..d90e4a264b6f 100644
> --- a/drivers/soc/sunxi/sunxi_mbus.c
> +++ b/drivers/soc/sunxi/sunxi_mbus.c
> @@ -23,12 +23,7 @@ static const char * const sunxi_mbus_devices[] = {
>  	"allwinner,sun7i-a20-display-engine",
>  	"allwinner,sun8i-a23-display-engine",
>  	"allwinner,sun8i-a33-display-engine",
> -	"allwinner,sun8i-a83t-display-engine",
> -	"allwinner,sun8i-h3-display-engine",
> -	"allwinner,sun8i-r40-display-engine",
> -	"allwinner,sun8i-v3s-display-engine",
>  	"allwinner,sun9i-a80-display-engine",
> -	"allwinner,sun50i-a64-display-engine",
>  
>  	/*
>  	 * And now we have the regular devices connected to the MBUS
> -- 
> 2.30.0
> 

-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com

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