linux-kernel - Re: [PATCH v2] cpufreq: dt-platdev: allow RK3399 to have separate tunables per cluster

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Message-ID: <20181008055547.umpyi4zcmcmjlxn2@vireshk-i7>
Date:   Mon, 8 Oct 2018 11:25:47 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Heiko Stuebner <heiko@...ech.de>,
        Derek Basehore <dbasehore@...omium.org>,
        Guenter Roeck <groeck@...omium.org>, linux-pm@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] cpufreq: dt-platdev: allow RK3399 to have separate
 tunables per cluster

On 05-10-18, 12:00, Dmitry Torokhov wrote:
> RK3899 has one cluster with 4 small cores, and another one with 2 big
> cores, with cores in different clusters having different OPPs and thus
> needing separate set of tunables. Let's enable this via
> "have_governor_per_policy" platform data.
> 
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
> ---
> 
> v2 changes: commit message updated.
> 
> Not tested, but we had a patch unconditionally enabling
> CPUFREQ_HAVE_GOVERNOR_PER_POLICY flag in tree we used to ship devices
> based on RK3399 platform.
> 
>  drivers/cpufreq/cpufreq-dt-platdev.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
> index fe14c57de6ca..040ec0f711f9 100644
> --- a/drivers/cpufreq/cpufreq-dt-platdev.c
> +++ b/drivers/cpufreq/cpufreq-dt-platdev.c
> @@ -78,7 +78,10 @@ static const struct of_device_id whitelist[] __initconst = {
>  	{ .compatible = "rockchip,rk3328", },
>  	{ .compatible = "rockchip,rk3366", },
>  	{ .compatible = "rockchip,rk3368", },
> -	{ .compatible = "rockchip,rk3399", },
> +	{ .compatible = "rockchip,rk3399",
> +	  .data = &(struct cpufreq_dt_platform_data)
> +		{ .have_governor_per_policy = true, },
> +	},
>  
>  	{ .compatible = "st-ericsson,u8500", },
>  	{ .compatible = "st-ericsson,u8540", },

Acked-by: Viresh Kumar <viresh.kumar@...aro.org>

-- 
viresh