linux-kernel - Re: [PATCH v2 10/14] cpufreq: dt: Allow platform specific intermediate callbacks

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Message-ID: <20200219094508.trftyq22rwozzdh2@vireshk-i7>
Date:   Wed, 19 Feb 2020 15:15:08 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Peng Fan <peng.fan@....com>
Cc:     "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "sboyd@...nel.org" <sboyd@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "rjw@...ysocki.net" <rjw@...ysocki.net>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        "festevam@...il.com" <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        Anson Huang <anson.huang@....com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Abel Vesa <abel.vesa@....com>
Subject: Re: [PATCH v2 10/14] cpufreq: dt: Allow platform specific
 intermediate callbacks

On 19-02-20, 09:41, Peng Fan wrote:
> In drivers/cpufreq/cpufreq.c, function __target_index. Line 2065, see below:
> 
> 2062         notify = !(cpufreq_driver->flags & CPUFREQ_ASYNC_NOTIFICATION);
> 2063         if (notify) {
> 2064                 /* Handle switching to intermediate frequency */
> 2065                 if (cpufreq_driver->get_intermediate) {
> 2066                         retval = __target_intermediate(policy, &freqs, index);
> 2067                         if (retval)
> 2068                                 return retval;
> 2069
> 2070                         intermediate_freq = freqs.new;
> 2071                         /* Set old freq to intermediate */
> 2072                         if (intermediate_freq)
> 2073                                 freqs.old = freqs.new;
> 2074                 }
> 
> Inspired from tegra20-cpufreq.c, use target_intermediate could handle
> i.MX7ULP cpufreq easier.

Ahh, sorry about that. Completely forgot this stuff existed :)

-- 
viresh