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

From: Stefan Wahren <stefan.wahren@i2se.com>
To: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
	Eric Anholt <eric@anholt.net>
Cc: devicetree@vger.kernel.org,
	Florian Fainelli <f.fainelli@gmail.com>,
	Scott Branden <sbranden@broadcom.com>,
	Ray Jui <rjui@broadcom.com>,
	linux-kernel@vger.kernel.org,
	bcm-kernel-feedback-list <bcm-kernel-feedback-list@broadcom.com>,
	wahrenst@gmx.net, linux-arm-kernel@lists.infradead.org,
	linux-rpi-kernel@lists.infradead.org
Subject: Re: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D
Date: Thu, 26 Mar 2020 18:24:45 +0100	[thread overview]
Message-ID: <8c2bdd83-c8a9-7ba8-8d61-69594e6a2bde@i2se.com> (raw)
In-Reply-To: <24f850f64b5c71c71938110775e16caaec2811cc.camel@suse.de>

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@suse.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@i2se.com>

Thanks

>
> Regards,
> Nicolas