From: Krzysztof Kozlowski <krzk@kernel.org>
To: Dmitry Osipenko <digetx@gmail.com>
Cc: Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Peter Geis <pgwipeout@gmail.com>,
Nicolas Chauvet <kwizart@gmail.com>,
Matt Merhar <mattmerhar@protonmail.com>,
linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1] memory: tegra: Check whether reset is already asserted
Date: Fri, 22 Jan 2021 22:40:05 +0100 [thread overview]
Message-ID: <20210122214005.bfsznpaga2rhl3ow@kozik-lap> (raw)
In-Reply-To: <20210119235210.13006-1-digetx@gmail.com>
On Wed, Jan 20, 2021 at 02:52:10AM +0300, Dmitry Osipenko wrote:
> Check whether memory client reset is already asserted in order to prevent
> DMA-flush error on trying to re-assert an already asserted reset.
>
> This becomes a problem once PMC GENPD is enabled to use memory resets
> since GENPD will get a error and fail to toggle power domain. PMC GENPDs
> can't be toggled safely without holding memory reset on Tegra and we're
> about to fix this.
>
> Tested-by: Peter Geis <pgwipeout@gmail.com> # Ouya T30
> Tested-by: Dmitry Osipenko <digetx@gmail.com> # A500 T20 and Nexus7 T30
Don't add your own Tested-by. Author has to test it. However this is a
v1 and already three other people added tests. Where are the emails?
> Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20
> Tested-by: Matt Merhar <mattmerhar@protonmail.com> # Ouya T30
> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
> ---
> drivers/memory/tegra/mc.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
Best regards,
Krzysztof
next prev parent reply other threads:[~2021-01-22 21:41 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-19 23:52 Dmitry Osipenko
2021-01-22 21:40 ` Krzysztof Kozlowski [this message]
2021-01-22 21:58 ` Dmitry Osipenko
2021-01-22 23:19 ` Krzysztof Kozlowski
2021-01-23 14:04 ` Dmitry Osipenko
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