On 19-12-16, 12:10, Markus Mayer wrote:
> From: Markus Mayer <mma...@broadcom.com>
>
> The AVS GET_PMAP command does return a P-state along with the P-map
> information. However, that P-state is the initial P-state when the
> P-map was first downloaded to AVS. It is *not* the current P-state.
>
> Therefore, we explicitly retrieve the P-state using the GET_PSTATE
> command.
>
> Signed-off-by: Markus Mayer <mma...@broadcom.com>
> ---
> drivers/cpufreq/brcmstb-avs-cpufreq.c | 13 ++++++++++++-
> 1 file changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/cpufreq/brcmstb-avs-cpufreq.c
> b/drivers/cpufreq/brcmstb-avs-cpufreq.c
> index 2c6e325..c943606 100644
> --- a/drivers/cpufreq/brcmstb-avs-cpufreq.c
> +++ b/drivers/cpufreq/brcmstb-avs-cpufreq.c
> @@ -784,8 +784,19 @@ static int brcm_avs_target_index(struct cpufreq_policy
> *policy,
> static int brcm_avs_suspend(struct cpufreq_policy *policy)
> {
> struct private_data *priv = policy->driver_data;
> + int ret;
> +
> + ret = brcm_avs_get_pmap(priv, &priv->pmap);
> + if (ret)
> + return ret;
>
> - return brcm_avs_get_pmap(priv, &priv->pmap);
> + /*
> + * We can't use the P-state returned by brcm_avs_get_pmap(), since
> + * that's the initial P-state from when the P-map was downloaded to the
> + * AVS co-processor, not necessarily the P-state we are running at now.
> + * So, we get the current P-state explicitly.
> + */
> + return brcm_avs_get_pstate(priv, &priv->pmap.state);
> }
>
> static int brcm_avs_resume(struct cpufreq_policy *policy)
Acked-by: Viresh Kumar <viresh.ku...@linaro.org>
--
viresh
