linux-kernel - Re: [PATCH v6 7/7] drm/rockchip: vop: rk3328: fix overlay abnormal

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Message-ID: <7730838.UedTk5eOxO@phil>
Date:   Fri, 28 Jul 2017 15:06:39 +0200
From:   Heiko Stuebner <heiko@...ech.de>
To:     Mark Yao <mark.yao@...k-chips.com>
Cc:     David Airlie <airlied@...ux.ie>, dri-devel@...ts.freedesktop.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 7/7] drm/rockchip: vop: rk3328: fix overlay abnormal

Am Mittwoch, 26. Juli 2017, 14:19:39 CEST schrieb Mark Yao:
> It's a hardware bug, all window's overlay channel reset
> value is same, hardware overlay would be die.
> 
> so we must initial difference id for each overlay channel.
> 
> The Channel register is supported on all vop will full design.
> Following is the details for this register
> VOP_WIN0_CTRL2
>   bit[7:4] win_rid_win0_cbr
>        axi read id of win0 cbr channel
>   bit[3:0] win_rid_win0_yrgb
>        axi read id of win0 yrgb channel
> 
> Signed-off-by: Mark Yao <mark.yao@...k-chips.com>

rk3036 and rk3288 are not negatively affected by this, so
on rk3036 and rk3288
Tested-by: Heiko Stuebner <heiko@...ech.de>