Re: [PATCH] cpufreq-dt: add suspend frequency support

From: Viresh Kumar
Date: Wed Sep 02 2015 - 22:50:34 EST


On 02-09-15, 18:42, Bartlomiej Zolnierkiewicz wrote:
> Add suspend frequency support and set it to the boot frequency,
> this matches what the old exynos-cpufreq driver has been doing.
>
> This patch fixes suspend/resume support on Exynos4412 based
> Trats2 board and reboot hang on Exynos4412 based Odroid U3
> board.
>
> Cc: Viresh Kumar <viresh.kumar@xxxxxxxxxx>
> Cc: Thomas Abraham <thomas.ab@xxxxxxxxxxx>
> Cc: Javier Martinez Canillas <javier@xxxxxxxxxxxxxxx>
> Cc: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
> Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Cc: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@xxxxxxxxxxx>
> ---
> This patch supersedes "[PATCH] ARM: dts: exynos4412-odroid-*: add
> workaround for CPUfreq/reboot issue" one from yesterday.
>
> drivers/cpufreq/cpufreq-dt.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
> index c3583cd..c9138c7 100644
> --- a/drivers/cpufreq/cpufreq-dt.c
> +++ b/drivers/cpufreq/cpufreq-dt.c
> @@ -329,6 +329,10 @@ static int cpufreq_init(struct cpufreq_policy *policy)
> policy->driver_data = priv;
>
> policy->clk = cpu_clk;
> +
> + /* capture boot frequency */
> + policy->suspend_freq = clk_get_rate(cpu_clk) / 1000;;

We should be using opp-v2's suspend-opp thing for this now..

--
viresh
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