From mboxrd@z Thu Jan  1 00:00:00 1970
From: Dmitry Osipenko <digetx@gmail.com>
Subject: Re: [RFC PATCH v3 16/18] gpu: host1x: mipi: Split
 tegra_mipi_calibrate and tegra_mipi_wait
Date: Fri, 17 Jul 2020 02:01:28 +0300
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To: Sowjanya Komatineni <skomatineni@nvidia.com>, thierry.reding@gmail.com, jonathanh@nvidia.com, frankc@nvidia.com, hverkuil@xs4all.nl, sakari.ailus@iki.fi, robh+dt@kernel.org, helen.koike@collabora.com
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17.07.2020 01:49, Sowjanya Komatineni пишет:
>> What keeps MIPI clock enabled after completion of the
>> tegra_mipi_calibrate() invocation?
> 
> MIPI clock is disabled at end of tegra_mipi_calibrate and is re-enabled
> during tegra_mipi_wait.
> 
> I think I should fix this to keep the clock enabled till calibration
> results are latched.
> 
> All consumers of tegra_mipi_calibrate() will call tegra_mipi_wait().
> 
> So will remove clk_disable mipi clk at end of tegra_mipi_calibrate() and
> clk_enable mipi_clk at beginning of tegra_mipi_wait()

Isn't it possible to perform the calibration after enabling CSI and
before of starting the sensor streaming?