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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20141013082322.GD32045@tbergstrom-lnx.Nvidia.com>
Date:	Mon, 13 Oct 2014 11:23:22 +0300
From:	Peter De Schrijver <pdeschrijver@...dia.com>
To:	Stephen Boyd <sboyd@...eaurora.org>
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 Fri, Oct 10, 2014 at 05:20:56PM -0700, Stephen Boyd wrote:
> 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.

It can change at runtime.

Cheers,

Peter.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/