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From: Kevin Hilman <khilman@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	narmstrong@baylibre.com, linux-amlogic@lists.infradead.org
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Stefan Agner <stefan@agner.ch>
Subject: Re: [PATCH RFC] soc: amlogic: meson-ee-pwrc: Drop the .shutdown callback from the driver
Date: Mon, 03 May 2021 16:57:12 -0700	[thread overview]
Message-ID: <7h4kfjpe07.fsf@baylibre.com> (raw)
In-Reply-To: <20210429203723.1177082-1-martin.blumenstingl@googlemail.com>

Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:

> Stefan reports that rebooting his ODROID-N2+ (using a G12B SoC) results
> in the board hanging. His kernel config uses:
>   CONFIG_MESON_EE_PM_DOMAINS=y
>   CONFIG_DRM_MESON=m
>
> He reports that his kernel config results in the DRM driver's .shutdown
> callback to be executed after the power domain driver's .shutdown
> callback. That's problematic because meson_ee_pwrc_shutdown disables the
> clock which are used by the VPU IP. This causes the board to hang.

I didn't dig deeply on this yet because this smells very much like an
issue Art reported[1] and fixed.

What kernel version are you using, and does it contain
commit fa0c16caf3d7 (drm: meson_drv add shutdown function)

Kevin

[1] https://lore.kernel.org/dri-devel/20210302042202.3728113-1-art@khadas.com/


_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

WARNING: multiple messages have this Message-ID (diff)
From: Kevin Hilman <khilman@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	narmstrong@baylibre.com, linux-amlogic@lists.infradead.org
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Stefan Agner <stefan@agner.ch>
Subject: Re: [PATCH RFC] soc: amlogic: meson-ee-pwrc: Drop the .shutdown callback from the driver
Date: Mon, 03 May 2021 16:57:12 -0700	[thread overview]
Message-ID: <7h4kfjpe07.fsf@baylibre.com> (raw)
In-Reply-To: <20210429203723.1177082-1-martin.blumenstingl@googlemail.com>

Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:

> Stefan reports that rebooting his ODROID-N2+ (using a G12B SoC) results
> in the board hanging. His kernel config uses:
>   CONFIG_MESON_EE_PM_DOMAINS=y
>   CONFIG_DRM_MESON=m
>
> He reports that his kernel config results in the DRM driver's .shutdown
> callback to be executed after the power domain driver's .shutdown
> callback. That's problematic because meson_ee_pwrc_shutdown disables the
> clock which are used by the VPU IP. This causes the board to hang.

I didn't dig deeply on this yet because this smells very much like an
issue Art reported[1] and fixed.

What kernel version are you using, and does it contain
commit fa0c16caf3d7 (drm: meson_drv add shutdown function)

Kevin

[1] https://lore.kernel.org/dri-devel/20210302042202.3728113-1-art@khadas.com/


WARNING: multiple messages have this Message-ID (diff)
From: Kevin Hilman <khilman@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	narmstrong@baylibre.com, linux-amlogic@lists.infradead.org
Cc: linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, linux-pm@vger.kernel.org,
	Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	Stefan Agner <stefan@agner.ch>
Subject: Re: [PATCH RFC] soc: amlogic: meson-ee-pwrc: Drop the .shutdown callback from the driver
Date: Mon, 03 May 2021 16:57:12 -0700	[thread overview]
Message-ID: <7h4kfjpe07.fsf@baylibre.com> (raw)
In-Reply-To: <20210429203723.1177082-1-martin.blumenstingl@googlemail.com>

Martin Blumenstingl <martin.blumenstingl@googlemail.com> writes:

> Stefan reports that rebooting his ODROID-N2+ (using a G12B SoC) results
> in the board hanging. His kernel config uses:
>   CONFIG_MESON_EE_PM_DOMAINS=y
>   CONFIG_DRM_MESON=m
>
> He reports that his kernel config results in the DRM driver's .shutdown
> callback to be executed after the power domain driver's .shutdown
> callback. That's problematic because meson_ee_pwrc_shutdown disables the
> clock which are used by the VPU IP. This causes the board to hang.

I didn't dig deeply on this yet because this smells very much like an
issue Art reported[1] and fixed.

What kernel version are you using, and does it contain
commit fa0c16caf3d7 (drm: meson_drv add shutdown function)

Kevin

[1] https://lore.kernel.org/dri-devel/20210302042202.3728113-1-art@khadas.com/


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

  parent reply	other threads:[~2021-05-03 23:57 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-29 20:37 [PATCH RFC] soc: amlogic: meson-ee-pwrc: Drop the .shutdown callback from the driver Martin Blumenstingl
2021-04-29 20:37 ` Martin Blumenstingl
2021-04-29 20:37 ` Martin Blumenstingl
2021-04-29 21:08 ` Stefan Agner
2021-04-29 21:08   ` Stefan Agner
2021-04-29 21:08   ` Stefan Agner
2021-05-01 20:19 ` Martin Blumenstingl
2021-05-01 20:19   ` Martin Blumenstingl
2021-05-01 20:19   ` Martin Blumenstingl
2021-05-03 23:57 ` Kevin Hilman [this message]
2021-05-03 23:57   ` Kevin Hilman
2021-05-03 23:57   ` Kevin Hilman

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