From: Michael Turquette <mturquette@baylibre.com>
To: Fabio Estevam <festevam@gmail.com>,
"Stephen Boyd" <sboyd@codeaurora.org>
Cc: linux-clk@vger.kernel.org, peter.chen@nxp.com,
"Lee Jones" <lee.jones@linaro.org>
Subject: Re: Keeping a clock enabled during suspend
Date: Wed, 17 Feb 2016 17:38:39 -0800 [thread overview]
Message-ID: <20160218013839.2278.23558@quark.deferred.io> (raw)
In-Reply-To: <CAOMZO5AZbe2PKysy353Q-3w_+WY0HQD4EYtq24SzwadoQ4ikeA@mail.gmail.com>
Quoting Fabio Estevam (2016-02-03 09:04:07)
> Hi,
> =
> I am trying to implement a workaround for a mx25 USB erratum issue
> (ENGcm08333), where I need to keep the USB clock turned on when the
> system enters in suspend.
> =
> Is it possible to indicate that a clock needs to be kept enabled in
> suspend with the current clock framework?
> =
> I saw this attempt from Lee Jones:
> https://lkml.org/lkml/2015/4/8/9
That link didn't resolve for me but I'm guessing those are the CRITICAL
clk patches.
That flag is designed to keep a clock on always, so it may do what you
want, but I'd like to know more first.
Where does your clock get cut? Is there a clk_disable call in a suspend
callback that does this to your USB clk?
Regards,
Mike
> =
> Any suggestions?
> =
> Thanks,
> =
> Fabio Estevam
next prev parent reply other threads:[~2016-02-18 1:38 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-03 17:04 Keeping a clock enabled during suspend Fabio Estevam
2016-02-18 1:38 ` Michael Turquette [this message]
2016-02-22 17:18 ` Fabio Estevam
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