linux-kernel - [PATCH V11 5/7] soc: qcom: rpmpd: Add support for set performance state

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Date:   Wed, 11 Oct 2017 12:54:17 +0530
From:   Viresh Kumar <viresh.kumar@...aro.org>
To:     Rafael Wysocki <rjw@...ysocki.net>, ulf.hansson@...aro.org,
        Kevin Hilman <khilman@...nel.org>,
        Stephen Boyd <sboyd@...eaurora.org>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>, linux-pm@...r.kernel.org,
        Vincent Guittot <vincent.guittot@...aro.org>,
        Nishanth Menon <nm@...com>, robh+dt@...nel.org,
        lina.iyer@...aro.org, rnayak@...eaurora.org, sudeep.holla@....com,
        linux-kernel@...r.kernel.org, Len Brown <len.brown@...el.com>,
        Pavel Machek <pavel@....cz>,
        Andy Gross <andy.gross@...aro.org>,
        David Brown <david.brown@...aro.org>
Subject: [PATCH V11 5/7] soc: qcom: rpmpd: Add support for set performance state

From: Rajendra Nayak <rnayak@...eaurora.org>

NOT FOR MERGE.

With genpd now expecting power domain drivers supporting performance
state to support set performance state callbacks, add support for it in
the rpmpd driver.

Signed-off-by: Rajendra Nayak <rnayak@...eaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
 drivers/soc/qcom/rpmpd.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/soc/qcom/rpmpd.c b/drivers/soc/qcom/rpmpd.c
index 0958d7693c4f..34d2eb4e75bf 100644
--- a/drivers/soc/qcom/rpmpd.c
+++ b/drivers/soc/qcom/rpmpd.c
@@ -230,6 +230,28 @@ static int rpmpd_power_off(struct generic_pm_domain *domain)
 	return ret;
 }
 
+static int rpmpd_set_performance(struct generic_pm_domain *domain,
+				 unsigned int state)
+{
+	int ret = 0;
+	struct rpmpd *pd = domain_to_rpmpd(domain);
+
+	mutex_lock(&rpmpd_lock);
+
+	pd->corner = state;
+
+	if (!pd->enabled && (pd->key != KEY_FLOOR_CORNER))
+		goto out;
+
+	ret = rpmpd_aggregate_corner(pd);
+
+out:
+	mutex_unlock(&rpmpd_lock);
+
+	return ret;
+}
+
+
 static int rpmpd_probe(struct platform_device *pdev)
 {
 	int i;
@@ -267,6 +289,7 @@ static int rpmpd_probe(struct platform_device *pdev)
 		rpmpds[i]->rpm = rpm;
 		rpmpds[i]->pd.power_off = rpmpd_power_off;
 		rpmpds[i]->pd.power_on = rpmpd_power_on;
+		rpmpds[i]->pd.genpd_set_performance_state = rpmpd_set_performance;
 		pm_genpd_init(&rpmpds[i]->pd, NULL, true);
 
 		data->domains[i] = &rpmpds[i]->pd;
-- 
2.7.4