From: Wei Ni <wni@nvidia.com> To: daniel.lezcano@linaro.org, edubezval@gmail.com Cc: thierry.reding@gmail.com, linux-tegra@vger.kernel.org, rui.zhang@intel.com, srikars@nvidia.com, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, Wei Ni <wni@nvidia.com> Subject: [PATCH v7 3/3] thermal: tegra: add get_trend ops Date: Thu, 3 Jan 2019 18:12:49 +0800 [thread overview] Message-ID: <1546510369-28491-4-git-send-email-wni@nvidia.com> (raw) In-Reply-To: <1546510369-28491-1-git-send-email-wni@nvidia.com> Add support for get_trend ops that allows soctherm sensors to be used with the step-wise governor. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/tegra/soctherm.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c index fd2703c0cfc5..864205af104b 100644 --- a/drivers/thermal/tegra/soctherm.c +++ b/drivers/thermal/tegra/soctherm.c @@ -488,9 +488,43 @@ static int tegra_thermctl_set_trip_temp(void *data, int trip, int temp) return 0; } +static int tegra_thermctl_get_trend(void *data, int trip, + enum thermal_trend *trend) +{ + struct tegra_thermctl_zone *zone = data; + struct thermal_zone_device *tz = zone->tz; + int trip_temp, temp, last_temp, ret; + + if (!tz) + return -EINVAL; + + ret = tz->ops->get_trip_temp(zone->tz, trip, &trip_temp); + if (ret) + return ret; + + mutex_lock(&tz->lock); + temp = tz->temperature; + last_temp = tz->last_temperature; + mutex_unlock(&tz->lock); + + if (temp > trip_temp) { + if (temp >= last_temp) + *trend = THERMAL_TREND_RAISING; + else + *trend = THERMAL_TREND_STABLE; + } else if (temp < trip_temp) { + *trend = THERMAL_TREND_DROPPING; + } else { + *trend = THERMAL_TREND_STABLE; + } + + return 0; +} + static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = { .get_temp = tegra_thermctl_get_temp, .set_trip_temp = tegra_thermctl_set_trip_temp, + .get_trend = tegra_thermctl_get_trend, }; static int get_hot_temp(struct thermal_zone_device *tz, int *trip, int *temp) -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Wei Ni <wni@nvidia.com> To: <daniel.lezcano@linaro.org>, <edubezval@gmail.com> Cc: <thierry.reding@gmail.com>, <linux-tegra@vger.kernel.org>, <rui.zhang@intel.com>, <srikars@nvidia.com>, <linux-kernel@vger.kernel.org>, <linux-pm@vger.kernel.org>, Wei Ni <wni@nvidia.com> Subject: [PATCH v7 3/3] thermal: tegra: add get_trend ops Date: Thu, 3 Jan 2019 18:12:49 +0800 [thread overview] Message-ID: <1546510369-28491-4-git-send-email-wni@nvidia.com> (raw) In-Reply-To: <1546510369-28491-1-git-send-email-wni@nvidia.com> Add support for get_trend ops that allows soctherm sensors to be used with the step-wise governor. Signed-off-by: Wei Ni <wni@nvidia.com> --- drivers/thermal/tegra/soctherm.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c index fd2703c0cfc5..864205af104b 100644 --- a/drivers/thermal/tegra/soctherm.c +++ b/drivers/thermal/tegra/soctherm.c @@ -488,9 +488,43 @@ static int tegra_thermctl_set_trip_temp(void *data, int trip, int temp) return 0; } +static int tegra_thermctl_get_trend(void *data, int trip, + enum thermal_trend *trend) +{ + struct tegra_thermctl_zone *zone = data; + struct thermal_zone_device *tz = zone->tz; + int trip_temp, temp, last_temp, ret; + + if (!tz) + return -EINVAL; + + ret = tz->ops->get_trip_temp(zone->tz, trip, &trip_temp); + if (ret) + return ret; + + mutex_lock(&tz->lock); + temp = tz->temperature; + last_temp = tz->last_temperature; + mutex_unlock(&tz->lock); + + if (temp > trip_temp) { + if (temp >= last_temp) + *trend = THERMAL_TREND_RAISING; + else + *trend = THERMAL_TREND_STABLE; + } else if (temp < trip_temp) { + *trend = THERMAL_TREND_DROPPING; + } else { + *trend = THERMAL_TREND_STABLE; + } + + return 0; +} + static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = { .get_temp = tegra_thermctl_get_temp, .set_trip_temp = tegra_thermctl_set_trip_temp, + .get_trend = tegra_thermctl_get_trend, }; static int get_hot_temp(struct thermal_zone_device *tz, int *trip, int *temp) -- 2.7.4
next prev parent reply other threads:[~2019-01-03 10:12 UTC|newest] Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-01-03 10:12 [PATCH v7 0/3] Fixes for Tegra soctherm Wei Ni 2019-01-03 10:12 ` Wei Ni 2019-01-03 10:12 ` [PATCH v7 1/3] thermal: tegra: remove unnecessary warnings Wei Ni 2019-01-03 10:12 ` Wei Ni 2019-02-18 9:47 ` Daniel Lezcano 2019-02-19 2:14 ` Wei Ni 2019-02-19 2:14 ` Wei Ni 2019-01-03 10:12 ` [PATCH v7 2/3] thermal: tegra: fix memory allocation Wei Ni 2019-01-03 10:12 ` Wei Ni 2019-02-18 10:24 ` Daniel Lezcano 2019-01-03 10:12 ` Wei Ni [this message] 2019-01-03 10:12 ` [PATCH v7 3/3] thermal: tegra: add get_trend ops Wei Ni 2019-02-18 10:27 ` Daniel Lezcano 2019-02-19 2:15 ` Wei Ni 2019-02-19 2:15 ` Wei Ni [not found] ` <ecabe3d8-274f-7c0e-f875-6968c65a4425-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org> 2020-03-30 17:23 ` Daniel Lezcano 2020-03-30 17:23 ` Daniel Lezcano 2019-01-11 2:20 ` [PATCH v7 0/3] Fixes for Tegra soctherm Wei Ni 2019-01-11 2:20 ` Wei Ni 2019-01-21 9:17 ` Wei Ni 2019-01-21 9:17 ` Wei Ni 2019-02-18 7:59 ` Wei Ni 2019-02-18 7:59 ` Wei Ni 2019-02-20 2:14 ` Zhang Rui 2019-02-20 8:42 ` Wei Ni 2019-02-20 8:42 ` Wei Ni
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