From: Thierry Reding <thierry.reding@gmail.com>
To: Dmitry Osipenko <digetx@gmail.com>
Cc: "Jonathan Hunter" <jonathanh@nvidia.com>,
"Peter De Schrijver" <pdeschrijver@nvidia.com>,
"Rafael J. Wysocki" <rjw@rjwysocki.net>,
"Daniel Lezcano" <daniel.lezcano@linaro.org>,
"Michał Mirosław" <mirq-linux@rere.qmqm.pl>,
"Jasper Korten" <jja2000@gmail.com>,
"David Heidelberg" <david@ixit.cz>,
"Peter Geis" <pgwipeout@gmail.com>,
linux-pm@vger.kernel.org, linux-tegra@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 2/3] firmware: trusted_foundations: Different way of L2 cache enabling after LP2 suspend
Date: Wed, 6 May 2020 18:34:47 +0200 [thread overview]
Message-ID: <20200506163447.GC2723057@ulmo> (raw)
In-Reply-To: <20200324224335.5825-3-digetx@gmail.com>
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On Wed, Mar 25, 2020 at 01:43:34AM +0300, Dmitry Osipenko wrote:
> ASUS TF300T device may not work properly if firmware is asked to fully
> re-initialize L2 cache after resume from LP2 suspend. The downstream
> kernel of TF300T uses different opcode to enable cache after resuming
> from LP2, this opcode also works fine on Nexus 7 and Ouya devices.
> Supposedly, this may be needed by an older firmware versions.
>
> Reported-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> Tested-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
> Tested-by: Jasper Korten <jja2000@gmail.com>
> Tested-by: David Heidelberg <david@ixit.cz>
> Tested-by: Peter Geis <pgwipeout@gmail.com>
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
> arch/arm/mach-tegra/pm.c | 4 ++++
> drivers/firmware/trusted_foundations.c | 21 ++++++++++++++++++--
> include/linux/firmware/trusted_foundations.h | 1 +
> 3 files changed, 24 insertions(+), 2 deletions(-)
I split this up and applied it to for-5.8/firmware and for-5.8/arm/core,
respectively.
Thanks,
Thierry
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next prev parent reply other threads:[~2020-05-06 16:34 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-24 22:43 [PATCH v1 0/3] Enable LP2 CPUIDLE state on NVIDIA Tegra30 Dmitry Osipenko
2020-03-24 22:43 ` [PATCH v1 1/3] ARM: tegra: Initialize r0 register for firmware wake-up Dmitry Osipenko
2020-05-06 16:34 ` Thierry Reding
2020-03-24 22:43 ` [PATCH v1 2/3] firmware: trusted_foundations: Different way of L2 cache enabling after LP2 suspend Dmitry Osipenko
2020-05-06 16:34 ` Thierry Reding [this message]
2020-03-24 22:43 ` [PATCH v1 3/3] cpuidle: tegra: Support CPU cluster power-down state on Tegra30 Dmitry Osipenko
2020-05-06 16:33 ` Thierry Reding
2020-05-22 16:42 ` Daniel Lezcano
2020-05-22 16:42 ` Daniel Lezcano
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