[PATCH 6/7] cpufreq: apple-soc: Set fallback transition latency to APPLE_DVFS_TRANSITION_TIMEOUT
Christian Loehle
christian.loehle at arm.com
Wed Dec 11 03:32:41 PST 2024
On 12/11/24 11:19, Nick Chan wrote:
> The driver already assumes transitions will not take longer than
> APPLE_DVFS_TRANSITION_TIMEOUT in apple_soc_cpufreq_set_target(), so it
> makes little sense to set CPUFREQ_ETERNAL as the transition latency
> when the transistion latency is not given by the opp-table.
>
> Signed-off-by: Nick Chan <towinchenmi at gmail.com>
> ---
> drivers/cpufreq/apple-soc-cpufreq.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/apple-soc-cpufreq.c b/drivers/cpufreq/apple-soc-cpufreq.c
> index 94e57f055a5f..0af36f911bea 100644
> --- a/drivers/cpufreq/apple-soc-cpufreq.c
> +++ b/drivers/cpufreq/apple-soc-cpufreq.c
> @@ -291,7 +291,7 @@ static int apple_soc_cpufreq_init(struct cpufreq_policy *policy)
>
> transition_latency = dev_pm_opp_get_max_transition_latency(cpu_dev);
> if (!transition_latency)
> - transition_latency = CPUFREQ_ETERNAL;
> + transition_latency = APPLE_DVFS_TRANSITION_TIMEOUT;
transition_latency is in ns, APPLE_DVFS_TRANSITION_TIMEOUT in us.
LGTM otherwise.
>
> policy->cpuinfo.transition_latency = transition_latency;
> policy->dvfs_possible_from_any_cpu = true;
More information about the linux-arm-kernel
mailing list