linux-kernel - Re: [PATCH] clk: versatile: add min/max rate boundaries for vexpress osc clock

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Message-ID: <CAPKp9ubFmhRGaLvB5_Z-WCXiJZYH_W=V43e+Py1DWMk03rrMeg@mail.gmail.com>
Date:   Mon, 19 Feb 2018 15:55:37 +0000
From:   Sudeep Holla <sudeep.holla@....com>
To:     open list <linux-kernel@...r.kernel.org>
Cc:     Liviu Dudau <liviu.dudau@....com>,
        Sudeep Holla <sudeep.holla@....com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...eaurora.org>, linux-clk@...r.kernel.org
Subject: Re: [PATCH] clk: versatile: add min/max rate boundaries for vexpress
 osc clock

On Fri, Nov 10, 2017 at 4:06 PM, Sudeep Holla <sudeep.holla@....com> wrote:
> Clock framework has a provider API(clk_hw_set_rate_range) to set the
> min/max rate of a clock. Use the same to set the boundaries for the
> vexpress osc clock.
>
> Cc: Michael Turquette <mturquette@...libre.com>
> Cc: Stephen Boyd <sboyd@...eaurora.org>
> Cc: linux-clk@...r.kernel.org
> Signed-off-by: Sudeep Holla <sudeep.holla@....com>
> ---
>  drivers/clk/versatile/clk-vexpress-osc.c | 1 +
>  1 file changed, 1 insertion(+)
>
> Hi Stephen,
>
> Just a quick question, does the clk core ensure the round_rate request
> to the clock provider is within this bounds ? A quick grep suggests it's
> used after the call to round_rate in clk_calc_new_rates. I can't recall
> the details from when you introduced clk_hw_set_rate_range.
>

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