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From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: Stefan Wahren <stefan.wahren@i2se.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Ray Jui <rjui@broadcom.com>,
	Scott Branden <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com,
	Eric Anholt <eric@anholt.net>
Cc: devicetree@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, wahrenst@gmx.net
Subject: Re: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D
Date: Tue, 03 Mar 2020 19:37:17 +0100	[thread overview]
Message-ID: <03fcb1e2bc7f3ff389b6dfbf3964e159a93ae835.camel@suse.de> (raw)
In-Reply-To: <736f0c59-352b-03b2-f77f-bfc22171b3fb@i2se.com>

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On Tue, 2020-03-03 at 19:17 +0100, Stefan Wahren wrote:
> Hi Nicolas,
> 
> Am 03.03.20 um 18:32 schrieb Nicolas Saenz Julienne:
> > 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>
> > ---
> > 
> > See https://github.com/raspberrypi/linux/issues/3046 for more reference.
> > Note: I tested this on RPi3b, RPi3a+ and RPi2b.
> 
> as i already wrote this prevent X to start on current Raspbian on my
> Raspberry Pi 3A+ (multi_v7_defconfig, no u-boot). We must be careful here.
> 
> I will take a look at the debug UART. Maybe there are more helpful
> information.

It seems we're seeing different things, I tested this on raspbian
(multi_v7_defconfig) and on arm64. I'll try again from scratch tomorrow.


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WARNING: multiple messages have this Message-ID (diff)
From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: Stefan Wahren <stefan.wahren@i2se.com>,
	Rob Herring <robh+dt@kernel.org>,
	 Mark Rutland <mark.rutland@arm.com>,
	Florian Fainelli <f.fainelli@gmail.com>,
	Ray Jui <rjui@broadcom.com>,
	 Scott Branden <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com,
	Eric Anholt <eric@anholt.net>
Cc: devicetree@vger.kernel.org, wahrenst@gmx.net,
	linux-rpi-kernel@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D
Date: Tue, 03 Mar 2020 19:37:17 +0100	[thread overview]
Message-ID: <03fcb1e2bc7f3ff389b6dfbf3964e159a93ae835.camel@suse.de> (raw)
In-Reply-To: <736f0c59-352b-03b2-f77f-bfc22171b3fb@i2se.com>


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On Tue, 2020-03-03 at 19:17 +0100, Stefan Wahren wrote:
> Hi Nicolas,
> 
> Am 03.03.20 um 18:32 schrieb Nicolas Saenz Julienne:
> > 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>
> > ---
> > 
> > See https://github.com/raspberrypi/linux/issues/3046 for more reference.
> > Note: I tested this on RPi3b, RPi3a+ and RPi2b.
> 
> as i already wrote this prevent X to start on current Raspbian on my
> Raspberry Pi 3A+ (multi_v7_defconfig, no u-boot). We must be careful here.
> 
> I will take a look at the debug UART. Maybe there are more helpful
> information.

It seems we're seeing different things, I tested this on raspbian
(multi_v7_defconfig) and on arm64. I'll try again from scratch tomorrow.


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_______________________________________________
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-03-03 18:37 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-03 17:32 [PATCH] ARM: dts: bcm283x: Use firmware PM driver for V3D Nicolas Saenz Julienne
2020-03-03 17:32 ` Nicolas Saenz Julienne
2020-03-03 18:17 ` Stefan Wahren
2020-03-03 18:17   ` Stefan Wahren
2020-03-03 18:37   ` Nicolas Saenz Julienne [this message]
2020-03-03 18:37     ` Nicolas Saenz Julienne
2020-03-03 19:24     ` Stefan Wahren
2020-03-03 19:24       ` Stefan Wahren
2020-03-05 10:44       ` Nicolas Saenz Julienne
2020-03-05 10:44         ` Nicolas Saenz Julienne
2020-03-06 20:33         ` Stefan Wahren
2020-03-06 20:33           ` Stefan Wahren
2020-03-09 15:41           ` Stefan Wahren
2020-03-09 15:41             ` Stefan Wahren
2020-03-09 19:22             ` Nicolas Saenz Julienne
2020-03-09 19:22               ` Nicolas Saenz Julienne
2020-03-13 13:59               ` Stefan Wahren
2020-03-13 13:59                 ` Stefan Wahren
2020-03-15 19:16                 ` Stefan Wahren
2020-03-16 12:40                   ` Nicolas Saenz Julienne
2020-03-16 13:57                     ` Dave Stevenson
2020-03-20 14:43                       ` Nicolas Saenz Julienne
2020-03-23 14:56                       ` Maxime Ripard
2020-03-23 15:55                         ` Dave Stevenson
2020-03-23 18:48                           ` Stefan Wahren
2020-03-23 19:10                             ` Dave Stevenson
2020-03-26 12:24 ` Nicolas Saenz Julienne
2020-03-26 12:24   ` Nicolas Saenz Julienne
2020-03-26 17:24   ` Stefan Wahren
2020-03-26 17:24     ` Stefan Wahren
2020-03-27  0:35     ` Florian Fainelli
2020-03-27  0:35       ` Florian Fainelli
2020-03-27 10:41       ` Nicolas Saenz Julienne
2020-03-27 10:41         ` Nicolas Saenz Julienne
2020-03-27 11:24       ` Stefan Wahren
2020-03-27 11:24         ` Stefan Wahren
2020-03-27 12:58 ` Nicolas Saenz Julienne
2020-03-27 12:58   ` Nicolas Saenz Julienne

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