linux-kernel - Re: [PATCH v1] memory: tegra: Check whether reset is already asserted

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Message-ID: <20210122214005.bfsznpaga2rhl3ow@kozik-lap>
Date:   Fri, 22 Jan 2021 22:40:05 +0100
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Peter Geis <pgwipeout@...il.com>,
        Nicolas Chauvet <kwizart@...il.com>,
        Matt Merhar <mattmerhar@...tonmail.com>,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] memory: tegra: Check whether reset is already asserted

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@...il.com> # Ouya T30
> Tested-by: Dmitry Osipenko <digetx@...il.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@...il.com> # PAZ00 T20
> Tested-by: Matt Merhar <mattmerhar@...tonmail.com> # Ouya T30
> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
> ---
>  drivers/memory/tegra/mc.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 

Best regards,
Krzysztof