linux-kernel - Re: [PATCH 1/2] drm/rockchip: vop: clear DMA stop bit on flush on RK3066

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Message-Id: <0C5QDS.UDESKUXHKPET1@packett.cool>
Date: Sun, 19 May 2024 05:38:24 -0300
From: Val Packett <val@...kett.cool>
To: Greg KH <gregkh@...uxfoundation.org>
Cc: stable@...r.kernel.org, Sandy Huang <hjc@...k-chips.com>,
	Heiko Stübner <heiko@...ech.de>, Andy Yan
	<andy.yan@...k-chips.com>, Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>, dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org, linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] drm/rockchip: vop: clear DMA stop bit on flush on
 RK3066



On Sun, May 19 2024 at 09:59:47 +02:00:00, Greg KH 
<gregkh@...uxfoundation.org> wrote:
> On Sun, May 19, 2024 at 04:31:31AM -0300, Val Packett wrote:
>>  On the RK3066, there is a bit that must be cleared on flush, 
>> otherwise
>>  we do not get display output (at least for RGB).
> 
> What commit id does this fix?

I guess: f4a6de855e "drm: rockchip: vop: add rk3066 vop definitions" ?

But similar changes like:
742203cd "drm: rockchip: add missing registers for RK3066"
8d544233 "drm/rockchip: vop: Add directly output rgb feature for px30"
did not have any "Fixes" reference.

~val