From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lukasz Majewski Subject: [PATCH v3 4/5] thermal: of: Extend of-thermal to export table of trip points Date: Mon, 08 Dec 2014 18:04:20 +0100 Message-ID: <1418058261-25251-5-git-send-email-l.majewski@samsung.com> References: <1416500488-7232-1-git-send-email-l.majewski@samsung.com> <1418058261-25251-1-git-send-email-l.majewski@samsung.com> Return-path: In-reply-to: <1418058261-25251-1-git-send-email-l.majewski@samsung.com> Sender: linux-kernel-owner@vger.kernel.org To: Eduardo Valentin , Zhang Rui Cc: Linux PM list , Thierry Reding , Bartlomiej Zolnierkiewicz , Lukasz Majewski , Mikko Perttunen , Stephen Warren , Abhilash Kesavan , Abhilash Kesavan , Guenter Roeck , linux-kernel@vger.kernel.org, Caesar Wang , navneet kumar , Lukasz Majewski List-Id: linux-pm@vger.kernel.org This patch extends the of-thermal.c to export trip points for a given thermal zone. Thermal drivers should use of_thermal_get_trip_points() method to get pointer to table of thermal trip points. Signed-off-by: Lukasz Majewski --- Changes for v3: - Export of_thermal_get_trip_points symbol as GPL - Fix the build error when CONFIG_THERMAL_OF is not defined Changes for v2: - New patch - as suggested by Eduardo Valentin --- drivers/thermal/of-thermal.c | 22 ++++++++++++++++++++++ drivers/thermal/thermal_core.h | 7 +++++++ 2 files changed, 29 insertions(+) diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index d3ac117..e062bf5 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -139,6 +139,28 @@ bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, int trip) } EXPORT_SYMBOL_GPL(of_thermal_is_trip_valid); +/** + * of_thermal_get_trip_points - function to get access to a globally exported + * trip points + * + * @tz: pointer to a thermal zone + * + * This function provides a pointer to trip points table + * + * Return: pointer to trip points table, NULL otherwise + */ +const struct thermal_trip * const +of_thermal_get_trip_points(struct thermal_zone_device *tz) +{ + struct __thermal_zone *data = tz->devdata; + + if (!data) + return NULL; + + return data->trips; +} +EXPORT_SYMBOL_GPL(of_thermal_get_trip_points); + static int of_thermal_get_trend(struct thermal_zone_device *tz, int trip, enum thermal_trend *trend) { diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h index 58a0dfa..9083e75 100644 --- a/drivers/thermal/thermal_core.h +++ b/drivers/thermal/thermal_core.h @@ -91,6 +91,8 @@ int of_parse_thermal_zones(void); void of_thermal_destroy_zones(void); int of_thermal_get_ntrips(struct thermal_zone_device *); bool of_thermal_is_trip_valid(struct thermal_zone_device *, int); +const struct thermal_trip * const +of_thermal_get_trip_points(struct thermal_zone_device *); #else static inline int of_parse_thermal_zones(void) { return 0; } static inline void of_thermal_destroy_zones(void) { } @@ -103,6 +105,11 @@ static inline bool of_thermal_is_trip_valid(struct thermal_zone_device *tz, { return 0; } +static inline const struct thermal_trip * const +of_thermal_get_trip_points(struct thermal_zone_device *tz) +{ + return NULL; +} #endif #endif /* __THERMAL_CORE_H__ */ -- 2.0.0.rc2