diff options
Diffstat (limited to 'drivers/gpu/drm/lima/lima_devfreq.c')
| -rw-r--r-- | drivers/gpu/drm/lima/lima_devfreq.c | 58 |
1 files changed, 21 insertions, 37 deletions
diff --git a/drivers/gpu/drm/lima/lima_devfreq.c b/drivers/gpu/drm/lima/lima_devfreq.c index 5686ad4aaf7c..8989e215dfc9 100644 --- a/drivers/gpu/drm/lima/lima_devfreq.c +++ b/drivers/gpu/drm/lima/lima_devfreq.c @@ -81,6 +81,7 @@ static int lima_devfreq_get_dev_status(struct device *dev, } static struct devfreq_dev_profile lima_devfreq_profile = { + .timer = DEVFREQ_TIMER_DELAYED, .polling_ms = 50, /* ~3 frames */ .target = lima_devfreq_target, .get_dev_status = lima_devfreq_get_dev_status, @@ -99,20 +100,12 @@ void lima_devfreq_fini(struct lima_device *ldev) devm_devfreq_remove_device(ldev->dev, devfreq->devfreq); devfreq->devfreq = NULL; } - - dev_pm_opp_of_remove_table(ldev->dev); - - dev_pm_opp_put_regulators(devfreq->regulators_opp_table); - dev_pm_opp_put_clkname(devfreq->clkname_opp_table); - devfreq->regulators_opp_table = NULL; - devfreq->clkname_opp_table = NULL; } int lima_devfreq_init(struct lima_device *ldev) { struct thermal_cooling_device *cooling; struct device *dev = ldev->dev; - struct opp_table *opp_table; struct devfreq *devfreq; struct lima_devfreq *ldevfreq = &ldev->devfreq; struct dev_pm_opp *opp; @@ -125,50 +118,45 @@ int lima_devfreq_init(struct lima_device *ldev) spin_lock_init(&ldevfreq->lock); - opp_table = dev_pm_opp_set_clkname(dev, "core"); - if (IS_ERR(opp_table)) { - ret = PTR_ERR(opp_table); - goto err_fini; - } - - ldevfreq->clkname_opp_table = opp_table; - - opp_table = dev_pm_opp_set_regulators(dev, - (const char *[]){ "mali" }, - 1); - if (IS_ERR(opp_table)) { - ret = PTR_ERR(opp_table); + ret = devm_pm_opp_set_clkname(dev, "core"); + if (ret) + return ret; + ret = devm_pm_opp_set_regulators(dev, (const char *[]){ "mali" }, 1); + if (ret) { /* Continue if the optional regulator is missing */ if (ret != -ENODEV) - goto err_fini; - } else { - ldevfreq->regulators_opp_table = opp_table; + return ret; } - ret = dev_pm_opp_of_add_table(dev); + ret = devm_pm_opp_of_add_table(dev); if (ret) - goto err_fini; + return ret; lima_devfreq_reset(ldevfreq); cur_freq = clk_get_rate(ldev->clk_gpu); 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); lima_devfreq_profile.initial_freq = cur_freq; dev_pm_opp_put(opp); + /* + * Setup default thresholds for the simple_ondemand governor. + * The values are chosen based on experiments. + */ + ldevfreq->gov_data.upthreshold = 30; + ldevfreq->gov_data.downdifferential = 5; + devfreq = devm_devfreq_add_device(dev, &lima_devfreq_profile, - DEVFREQ_GOV_SIMPLE_ONDEMAND, NULL); + DEVFREQ_GOV_SIMPLE_ONDEMAND, + &ldevfreq->gov_data); if (IS_ERR(devfreq)) { dev_err(dev, "Couldn't initialize GPU devfreq\n"); - ret = PTR_ERR(devfreq); - goto err_fini; + return PTR_ERR(devfreq); } ldevfreq->devfreq = devfreq; @@ -180,10 +168,6 @@ int lima_devfreq_init(struct lima_device *ldev) ldevfreq->cooling = cooling; return 0; - -err_fini: - lima_devfreq_fini(ldev); - return ret; } void lima_devfreq_record_busy(struct lima_devfreq *devfreq) |