diff mbox

[7/7] soc: qcom: rpmpd: Add a max vote on all corners at init

Message ID 20180316040824.21472-8-rnayak@codeaurora.org (mailing list archive)
State Superseded, archived
Delegated to: Andy Gross
Headers show

Commit Message

Rajendra Nayak March 16, 2018, 4:08 a.m. UTC
As we move from no clients/consumers in kernel voting on corners,
to *some* voting and some not voting, we might end up in a situation
where the clients which remove votes can adversly impact others
who still don't have a way to vote.

To avoid this situation, have a max vote on all corners at init.
This should/can be removed once we have all clients moved to
be able to vote/unvote for themselves.

Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
---
 drivers/soc/qcom/rpmpd.c | 9 +++++++++
 1 file changed, 9 insertions(+)

Comments

Viresh Kumar March 16, 2018, 4:41 a.m. UTC | #1
On 16-03-18, 09:38, Rajendra Nayak wrote:
> As we move from no clients/consumers in kernel voting on corners,
> to *some* voting and some not voting, we might end up in a situation
> where the clients which remove votes can adversly impact others
> who still don't have a way to vote.
> 
> To avoid this situation, have a max vote on all corners at init.
> This should/can be removed once we have all clients moved to
> be able to vote/unvote for themselves.
> 
> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
> ---
>  drivers/soc/qcom/rpmpd.c | 9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/drivers/soc/qcom/rpmpd.c b/drivers/soc/qcom/rpmpd.c
> index 4058c5b450c6..ebdcf9398441 100644
> --- a/drivers/soc/qcom/rpmpd.c
> +++ b/drivers/soc/qcom/rpmpd.c
> @@ -304,6 +304,15 @@ static int rpmpd_probe(struct platform_device *pdev)
>  		pm_genpd_init(&rpmpds[i]->pd, NULL, true);
>  
>  		data->domains[i] = &rpmpds[i]->pd;
> +
> +		/*
> +		 * Until we have all consumers voting on corners
> +		 * just vote the max corner on all PDs
> +		 * This should ideally be *removed* once we have
> +		 * all (most) consumers being able to vote
> +		 */
> +		rpmpd_set_performance(&rpmpds[i]->pd, MAX_RPMPD_STATE);
> +		rpmpd_power_on(&rpmpds[i]->pd);
>  	}
>  
>  	return of_genpd_add_provider_onecell(pdev->dev.of_node, data);

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
diff mbox

Patch

diff --git a/drivers/soc/qcom/rpmpd.c b/drivers/soc/qcom/rpmpd.c
index 4058c5b450c6..ebdcf9398441 100644
--- a/drivers/soc/qcom/rpmpd.c
+++ b/drivers/soc/qcom/rpmpd.c
@@ -304,6 +304,15 @@  static int rpmpd_probe(struct platform_device *pdev)
 		pm_genpd_init(&rpmpds[i]->pd, NULL, true);
 
 		data->domains[i] = &rpmpds[i]->pd;
+
+		/*
+		 * Until we have all consumers voting on corners
+		 * just vote the max corner on all PDs
+		 * This should ideally be *removed* once we have
+		 * all (most) consumers being able to vote
+		 */
+		rpmpd_set_performance(&rpmpds[i]->pd, MAX_RPMPD_STATE);
+		rpmpd_power_on(&rpmpds[i]->pd);
 	}
 
 	return of_genpd_add_provider_onecell(pdev->dev.of_node, data);