linux-kernel - Re: [PATCH 01/21] opp: Manage empty OPP tables with clk handle

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Message-ID: <20200414065732.rwrbiv7ke3kwgeti@vireshk-i7>
Date:   Tue, 14 Apr 2020 12:27:32 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rajendra Nayak <rnayak@...eaurora.org>
Cc:     sboyd@...nel.org, bjorn.andersson@...aro.org, agross@...nel.org,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH 01/21] opp: Manage empty OPP tables with clk handle

On 08-04-20, 19:16, Rajendra Nayak wrote:
> With OPP core now supporting DVFS for IO devices, we have instances of
> IO devices (same IP block) which require an OPP on some platforms/SoCs
> while just needing to scale the clock on some others.
> 
> In order to avoid conditional code in every driver which supports such
> devices (to check for availability of OPPs and then deciding to do
> either dev_pm_opp_set_rate() or clk_set_rate()) add support to manage
> empty OPP tables with a clk handle.
> 
> This makes dev_pm_opp_set_rate() equivalent of a clk_set_rate() for
> devices with just a clk and no OPPs specified, and makes
> dev_pm_opp_set_rate(0) bail out without throwing an error.
> 
> Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
> ---
>  drivers/opp/core.c | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)

Applied. Thanks.

-- 
viresh