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soc: qcom: rpmpd: Add support for get/set performance state 

Add support for the .set_performace_state() and .opp_to_performance_state()
callbacks in the rpmpd driver.

Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Rajendra Nayak 2019-01-10 09:32:05 +05:30 committed by Andy Gross
parent bbe3a66c3f
commit 075d3db8d1
1 changed files with 35 additions and 0 deletions
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35
drivers/soc/qcom/rpmpd.c
View File

@ -10,6 +10,7 @@
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/soc/qcom/smd-rpm.h>
#include <dt-bindings/mfd/qcom-rpm.h>
@ -26,6 +27,8 @@
#define KEY_ENABLE 0x6e657773 /* swen */
#define KEY_FLOOR_CORNER 0x636676 /* vfc */
#define MAX_RPMPD_STATE 6
#define DEFINE_RPMPD_CORNER_SMPA(_platform, _name, _active, r_id) \
static struct rpmpd _platform##_##_active; \
static struct rpmpd _platform##_##_name = { \
@ -218,6 +221,36 @@ 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);
if (state > MAX_RPMPD_STATE)
goto out;
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 unsigned int rpmpd_get_performance(struct generic_pm_domain *genpd,
struct dev_pm_opp *opp)
{
return dev_pm_opp_get_level(opp);
}
static int rpmpd_probe(struct platform_device *pdev)
{
int i;
@ -258,6 +291,8 @@ 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.set_performance_state = rpmpd_set_performance;
rpmpds[i]->pd.opp_to_performance_state = rpmpd_get_performance;
pm_genpd_init(&rpmpds[i]->pd, NULL, true);
data->domains[i] = &rpmpds[i]->pd;