From: Thierry Reding <thierry.reding@gmail.com>
To: Dmitry Osipenko <digetx@gmail.com>
Cc: Jonathan Hunter <jonathanh@nvidia.com>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans Verkuil <hverkuil@xs4all.nl>,
linux-media@vger.kernel.org, linux-tegra@vger.kernel.org,
devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 3/4] media: staging: tegra-vde: Turn ON power domain on shutdown
Date: Fri, 26 Jun 2020 09:43:33 +0200 [thread overview]
Message-ID: <20200626074333.GB3109062@ulmo> (raw)
In-Reply-To: <20200624150847.22672-4-digetx@gmail.com>
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On Wed, Jun 24, 2020 at 06:08:46PM +0300, Dmitry Osipenko wrote:
> On some devices bootloader isn't ready to a clamped VDE power, and thus,
> machine hangs on a warm reboot (CPU reset). The VDE power partition is
> turned ON by default on a cold boot, hence VDE driver should keep power
> partition enabled on system's reboot too. This fixes hang on a warm reboot
> on a Tegra20 Acer A500 device, which is handy if Embedded Controller
> driver is unavailable, i.e. cold reboot can't be performed.
>
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
> drivers/staging/media/tegra-vde/vde.c | 19 +++++++++++++++++++
> 1 file changed, 19 insertions(+)
Unfortunate that we have to do this, but looks fine:
Acked-by: Thierry Reding <treding@nvidia.com>
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next prev parent reply other threads:[~2020-06-26 7:43 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-24 15:08 [PATCH v2 0/4] Tegra Video Decoder driver power management corrections Dmitry Osipenko
2020-06-24 15:08 ` [PATCH v2 1/4] media: staging: tegra-vde: Balance runtime PM use-count on resume failure Dmitry Osipenko
2020-06-24 15:08 ` [PATCH v2 2/4] media: staging: tegra-vde: Runtime PM is always available on Tegra Dmitry Osipenko
2020-06-26 7:44 ` Thierry Reding
2020-06-24 15:08 ` [PATCH v2 3/4] media: staging: tegra-vde: Turn ON power domain on shutdown Dmitry Osipenko
2020-06-26 7:43 ` Thierry Reding [this message]
2020-06-24 15:08 ` [PATCH v2 4/4] media: staging: tegra-vde: Power-cycle hardware on probe Dmitry Osipenko
2020-06-26 7:48 ` Thierry Reding
2020-06-26 13:42 ` Dmitry Osipenko
2020-06-24 15:16 ` [PATCH v2 0/4] Tegra Video Decoder driver power management corrections Hans Verkuil
2020-06-24 15:23 ` Dmitry Osipenko
2020-06-26 0:17 ` Dmitry Osipenko
2020-06-26 6:58 ` Hans Verkuil
2020-06-26 13:23 ` Dmitry Osipenko
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