From: Zhang Rui <rui.zhang@intel.com>
To: Daniel Lezcano <daniel.lezcano@linaro.org>, rafael@kernel.org
Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
Amit Kucheria <amitk@kernel.org>
Subject: Re: [PATCH v4 04/30] thermal/core: Add a generic thermal_zone_get_crit_temp() function
Date: Fri, 23 Sep 2022 22:22:17 +0800 [thread overview]
Message-ID: <949edf3c0afea01006468a28fe444b4ee86042a7.camel@intel.com> (raw)
In-Reply-To: <20220921094244.606948-5-daniel.lezcano@linaro.org>
On Wed, 2022-09-21 at 11:42 +0200, Daniel Lezcano wrote:
> The thermal zone ops defines a callback to retrieve the critical
> temperature. As the trip handling is being reworked, all the trip
> points will be the same whatever the driver and consequently finding
> the critical trip temperature will be just a loop to search for a
> critical trip point type.
>
> Provide such a generic function, so we encapsulate the ops
> get_crit_temp() which can be removed when all the backend drivers are
> using the generic trip points handling.
>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
thanks,
rui
> ---
> drivers/thermal/thermal_core.c | 27 +++++++++++++++++++++++++++
> include/linux/thermal.h | 2 ++
> 2 files changed, 29 insertions(+)
>
> diff --git a/drivers/thermal/thermal_core.c
> b/drivers/thermal/thermal_core.c
> index fa0f89a24b68..2495c174a226 100644
> --- a/drivers/thermal/thermal_core.c
> +++ b/drivers/thermal/thermal_core.c
> @@ -1144,6 +1144,33 @@ int thermal_zone_get_num_trips(struct
> thermal_zone_device *tz)
> }
> EXPORT_SYMBOL_GPL(thermal_zone_get_num_trips);
>
> +int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int
> *temp)
> +{
> + int i, ret = 0;
> +
> + if (tz->ops->get_crit_temp)
> + return tz->ops->get_crit_temp(tz, temp);
> +
> + if (!tz->trips)
> + return -EINVAL;
> +
> + mutex_lock(&tz->lock);
> +
> + for (i = 0; i < tz->num_trips; i++) {
> + if (tz->trips[i].type == THERMAL_TRIP_CRITICAL) {
> + *temp = tz->trips[i].temperature;
> + goto out;
> + }
> + }
> +
> + ret = -EINVAL;
> +out:
> + mutex_unlock(&tz->lock);
> +
> + return ret;
> +}
> +EXPORT_SYMBOL_GPL(thermal_zone_get_crit_temp);
> +
> static int __thermal_zone_get_trip(struct thermal_zone_device *tz,
> int trip_id,
> struct thermal_trip *trip)
> {
> diff --git a/include/linux/thermal.h b/include/linux/thermal.h
> index 5350a437f245..66373f872237 100644
> --- a/include/linux/thermal.h
> +++ b/include/linux/thermal.h
> @@ -343,6 +343,8 @@ int thermal_zone_set_trip(struct
> thermal_zone_device *tz, int trip_id,
>
> int thermal_zone_get_num_trips(struct thermal_zone_device *tz);
>
> +int thermal_zone_get_crit_temp(struct thermal_zone_device *tz, int
> *temp);
> +
> #ifdef CONFIG_THERMAL
> struct thermal_zone_device *thermal_zone_device_register(const char
> *, int, int,
> void *, struct thermal_zone_device_ops *,
next prev parent reply other threads:[~2022-09-23 14:22 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-21 9:42 [PATCH v4 00/30] Rework the trip points creation Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 01/30] thermal/core: Add a generic thermal_zone_get_trip() function Daniel Lezcano
2022-09-23 13:54 ` Zhang Rui
[not found] ` <CGME20220923221936eucas1p1e01148605c9aaf27d8d71969feb99144@eucas1p1.samsung.com>
2022-09-23 22:19 ` Marek Szyprowski
2022-09-24 17:46 ` Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 02/30] thermal/sysfs: Do not make get_trip_hyst optional Daniel Lezcano
2022-09-23 14:19 ` Zhang Rui
2022-09-26 12:55 ` Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 03/30] thermal/core: Add a generic thermal_zone_set_trip() function Daniel Lezcano
2022-09-23 14:21 ` Zhang Rui
2022-09-21 9:42 ` [PATCH v4 04/30] thermal/core: Add a generic thermal_zone_get_crit_temp() function Daniel Lezcano
2022-09-23 14:22 ` Zhang Rui [this message]
2022-09-21 9:42 ` [PATCH v4 05/30] thermal/core/governors: Use thermal_zone_get_trip() instead of ops functions Daniel Lezcano
2022-09-23 14:25 ` Zhang Rui
2022-09-23 14:49 ` Lukasz Luba
2022-09-21 9:42 ` [PATCH v4 06/30] thermal/of: Use generic thermal_zone_get_trip() function Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 07/30] thermal/of: Remove unused functions Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 08/30] thermal/drivers/exynos: Use generic thermal_zone_get_trip() function Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 09/30] thermal/drivers/exynos: of_thermal_get_ntrips() Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 10/30] thermal/drivers/exynos: Replace of_thermal_is_trip_valid() by thermal_zone_get_trip() Daniel Lezcano
2022-09-21 15:24 ` Krzysztof Kozlowski
[not found] ` <CGME20220923140903eucas1p180002df0deb308d5148cc6004aef7efe@eucas1p1.samsung.com>
2022-09-23 14:09 ` Marek Szyprowski
2022-09-23 17:40 ` Daniel Lezcano
2022-09-23 22:02 ` Marek Szyprowski
2022-09-21 9:42 ` [PATCH v4 11/30] thermal/drivers/tegra: Use generic thermal_zone_get_trip() function Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 12/30] thermal/drivers/uniphier: " Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 13/30] thermal/drivers/hisi: " Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 14/30] thermal/drivers/qcom: " Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 15/30] thermal/drivers/armada: " Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 16/30] thermal/drivers/rcar_gen3: Use the generic function to get the number of trips Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 17/30] thermal/of: Remove of_thermal_get_ntrips() Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 18/30] thermal/of: Remove of_thermal_is_trip_valid() Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 19/30] thermal/of: Remove of_thermal_set_trip_hyst() Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 20/30] thermal/of: Remove of_thermal_get_crit_temp() Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 21/30] thermal/drivers/st: Use generic trip points Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 22/30] thermal/drivers/imx: Use generic thermal_zone_get_trip() function Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 23/30] thermal/drivers/rcar: " Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 24/30] thermal/drivers/broadcom: " Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 25/30] thermal/drivers/da9062: " Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 26/30] thermal/drivers/ti: Remove unused macros ti_thermal_get_trip_value() / ti_thermal_trip_is_valid() Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 27/30] thermal/drivers/acerhdf: Use generic thermal_zone_get_trip() function Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 28/30] thermal/drivers/cxgb4: " Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 29/30] thermal/intel/int340x: Replace parameter to simplify Daniel Lezcano
2022-09-21 9:42 ` [PATCH v4 30/30] thermal/drivers/intel: Use generic thermal_zone_get_trip() function Daniel Lezcano
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