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Subject: Re: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D
To:     Florian Fainelli <f.fainelli@gmail.com>,
        Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
        Eric Anholt <eric@anholt.net>
Cc:     devicetree@vger.kernel.org, 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
References: <20200303173217.3987-1-nsaenzjulienne@suse.de>
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From:   Stefan Wahren <stefan.wahren@i2se.com>
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Message-ID: <216d21e5-1a69-7d76-55bb-118715b30278@i2se.com>
Date:   Fri, 27 Mar 2020 12:24:27 +0100
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Sender: linux-kernel-owner@vger.kernel.org
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Hi,

Am 27.03.20 um 01:35 schrieb Florian Fainelli:
>
> 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@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>
> 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).
not sure how many are affected. I'm fine as long as both patches are
applied to a tree.

Regards