linux-kernel - Re: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D

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Date:   Fri, 27 Mar 2020 11:41:46 +0100
From:   Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
To:     Florian Fainelli <f.fainelli@...il.com>,
        Stefan Wahren <stefan.wahren@...e.com>,
        Eric Anholt <eric@...olt.net>
Cc:     devicetree@...r.kernel.org, Scott Branden <sbranden@...adcom.com>,
        Ray Jui <rjui@...adcom.com>, linux-kernel@...r.kernel.org,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>,
        wahrenst@....net, linux-arm-kernel@...ts.infradead.org,
        linux-rpi-kernel@...ts.infradead.org
Subject: Re: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D

On Thu, 2020-03-26 at 17:35 -0700, Florian Fainelli wrote:
> 
> On 3/26/2020 10:24 AM, Stefan Wahren wrote:
> > Am 26.03.20 um 13:24 schrieb Nicolas Saenz Julienne:
> > > Hi Stefan and Florian,
> > > 
> > > On Tue, 2020-03-03 at 18:32 +0100, Nicolas Saenz Julienne wrote:
> > > > The register based driver turned out to be unstable, specially on RPi3a+
> > > > but not limited to it. While a fix is being worked on, we roll back to
> > > > using firmware based scheme.
> > > > 
> > > > Fixes: e1dc2b2e1bef ("ARM: bcm283x: Switch V3D over to using the PM
> > > > driver
> > > > instead of firmware")
> > > > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
> > > > ---
> > > now that the problem Stefan was seeing is being taken care of, I think
> > > it's
> > > fair to reconsider taking this patch. Maybe even adding a Tested-by by
> > > Stefan?
> > 
> > after applying "drm/vc4: Fix HDMI mode validation" this commit doesn't
> > cause any regression:
> > 
> > Tested-by: Stefan Wahren <stefan.wahren@...e.com>
> 
> Good, how do you like to see this applied? Do we need to ensure that
> drm/vc4: Fix HDMI mode validation is applied to Linus' tree before
> merging this one? Nicolas, should this be queued for 5.7 or 5.8 (I do
> not think the 5.7 PRs have been merged yet).

Ideally both should be applied in the same time yes. I'm going to prepare an
extra PR for v5.7 today.

Regards,
Nicolas


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