[PATCH] Revert "ARM: bcm283x: Switch V3D over to using the PM driver instead of firmware."

[Stefan Wahren]

On 09.10.19 23:42, Florian Fainelli wrote:
> On 10/9/19 2:33 PM, Stefan Wahren wrote:
>> Hi Florian,
>>
>> Am 23.09.19 um 20:56 schrieb Florian Fainelli:
>>> On 9/8/2019 8:44 AM, Stefan Wahren wrote:
>>>> Since release of the new BCM2835 PM driver there has been several reports
>>>> of V3D probing issues. This is caused by timeouts during powering-up the
>>>> GRAFX PM domain:
>>>>
>>>>   bcm2835-power: Timeout waiting for grafx power OK
>>>>
>>>> I was able to reproduce this reliable on my Raspberry Pi 3B+ after setting
>>>> force_turbo=1 in the firmware configuration. Since there are no issues
>>>> using the firmware PM driver with the same setup, there must be an issue
>>>> in the BCM2835 PM driver.
>>>>
>>>> Unfortunately there hasn't been much progress in identifying the root cause
>>>> since June (mostly in the lack of documentation), so i decided to switch
>>>> back until the issue in the BCM2835 PM driver is fixed.
>>>>
>>>> Link: https://github.com/raspberrypi/linux/issues/3046
>>>> Fixes: e1dc2b2e1bef (" ARM: bcm283x: Switch V3D over to using the PM driver instead of firmware.")
>>>> Cc: stable at vger.kernel.org
>>>> Signed-off-by: Stefan Wahren <wahrenst at gmx.net>
>>> Applied to devicetree/fixes, thanks!
>> i noticed that X hangs with recent Raspbian and Linux 5.4-rc2 after this
>> revert has been applied.
>>
>> Is there a chance to drop the revert?
> I have not sent anything yet as I wanted to get some testing done on
> other platforms, so yes, I can definitively drop that particular changes
> from devicetree/fixes and not send it for a 5.4-rc3 pull request. Does
> that work for you?

Yes, definitely

Thanks Stefan