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drm/panfrost: Convert to use resource-managed OPP API 

Use resource-managed OPP API to simplify code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Yangtao Li 2021-03-14 19:34:06 +03:00 committed by Viresh Kumar
parent 864a270189
commit 6d8a154f1d
2 changed files with 9 additions and 30 deletions
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37
drivers/gpu/drm/panfrost/panfrost_devfreq.c
View File

@ -89,29 +89,25 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
unsigned long cur_freq;
struct device *dev = &pfdev->pdev->dev;
struct devfreq *devfreq;
struct opp_table *opp_table;
struct thermal_cooling_device *cooling;
struct panfrost_devfreq *pfdevfreq = &pfdev->pfdevfreq;
opp_table = dev_pm_opp_set_regulators(dev, pfdev->comp->supply_names,
pfdev->comp->num_supplies);
if (IS_ERR(opp_table)) {
ret = PTR_ERR(opp_table);
ret = devm_pm_opp_set_regulators(dev, pfdev->comp->supply_names,
pfdev->comp->num_supplies);
if (ret) {
/* Continue if the optional regulator is missing */
if (ret != -ENODEV) {
DRM_DEV_ERROR(dev, "Couldn't set OPP regulators\n");
goto err_fini;
return ret;
}
} else {
pfdevfreq->regulators_opp_table = opp_table;
}
ret = dev_pm_opp_of_add_table(dev);
ret = devm_pm_opp_of_add_table(dev);
if (ret) {
/* Optional, continue without devfreq */
if (ret == -ENODEV)
ret = 0;
goto err_fini;
return ret;
}
pfdevfreq->opp_of_table_added = true;
@ -122,10 +118,8 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
cur_freq = clk_get_rate(pfdev->clock);
opp = devfreq_recommended_opp(dev, &cur_freq, 0);
if (IS_ERR(opp)) {
ret = PTR_ERR(opp);
goto err_fini;
}
if (IS_ERR(opp))
return PTR_ERR(opp);
panfrost_devfreq_profile.initial_freq = cur_freq;
dev_pm_opp_put(opp);
@ -134,8 +128,7 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
DEVFREQ_GOV_SIMPLE_ONDEMAND, NULL);
if (IS_ERR(devfreq)) {
DRM_DEV_ERROR(dev, "Couldn't initialize GPU devfreq\n");
ret = PTR_ERR(devfreq);
goto err_fini;
return PTR_ERR(devfreq);
}
pfdevfreq->devfreq = devfreq;
@ -146,10 +139,6 @@ int panfrost_devfreq_init(struct panfrost_device *pfdev)
pfdevfreq->cooling = cooling;
return 0;
err_fini:
panfrost_devfreq_fini(pfdev);
return ret;
}
void panfrost_devfreq_fini(struct panfrost_device *pfdev)
@ -160,14 +149,6 @@ void panfrost_devfreq_fini(struct panfrost_device *pfdev)
devfreq_cooling_unregister(pfdevfreq->cooling);
pfdevfreq->cooling = NULL;
}
if (pfdevfreq->opp_of_table_added) {
dev_pm_opp_of_remove_table(&pfdev->pdev->dev);
pfdevfreq->opp_of_table_added = false;
}
dev_pm_opp_put_regulators(pfdevfreq->regulators_opp_table);
pfdevfreq->regulators_opp_table = NULL;
}
void panfrost_devfreq_resume(struct panfrost_device *pfdev)

2
drivers/gpu/drm/panfrost/panfrost_devfreq.h
View File

@ -8,14 +8,12 @@
#include <linux/ktime.h>
struct devfreq;
struct opp_table;
struct thermal_cooling_device;
struct panfrost_device;
struct panfrost_devfreq {
struct devfreq *devfreq;
struct opp_table *regulators_opp_table;
struct thermal_cooling_device *cooling;
bool opp_of_table_added;