linux-kernel - Re: [PATCH v2 4/4] clk: Use ww_mutexes for clk_prepare

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Message-ID: <20141011002056.GJ5493@codeaurora.org>
Date:	Fri, 10 Oct 2014 17:20:56 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Peter De Schrijver <pdeschrijver@...dia.com>
Cc:	Mike Turquette <mturquette@...aro.org>,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, ccross@...roid.com,
	Barry Song <baohua@...nel.org>,
	Sachin Kamat <sachin.kamat@...aro.org>,
	Viresh Kumar <viresh.linux@...il.com>
Subject: Re: [PATCH v2 4/4] clk: Use ww_mutexes for clk_prepare_{lock/unlock}

On 10/10, Peter De Schrijver wrote:
> > > drivers/clk/tegra/clk-pll.c:732:    unsigned long input_rate = 
> > > clk_get_rate(clk_get_parent(hw->clk));
> > > drivers/clk/tegra/clk-pll.c:1288:    unsigned long input_rate = 
> > > clk_get_rate(clk_get_parent(hw->clk));
> 
> This is not so easy to change unfortunately. I will have to think of a solution.
> 

Thanks. Does the input parent rate change at runtime or is it
fixed at boot? I'm hoping we can call _get_table_rate() once
before we register the clock or something.

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