linux-kernel - [PATCH v1 2/4] thermal: core: Add function for registering tripless thermal zones

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Date:   Wed, 30 Aug 2023 18:13:35 +0200
From:   "Rafael J. Wysocki" <rjw@...ysocki.net>
To:     Linux PM <linux-pm@...r.kernel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
        Zhang Rui <rui.zhang@...el.com>,
        Amit Kucheria <amitk@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Sebastian Reichel <sre@...nel.org>
Subject: [PATCH v1 2/4] thermal: core: Add function for registering tripless thermal zones

From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>

Multiple callers of thermal_zone_device_register() don't pass any trips
to it and they might use a shortened argument list for that, so add
a special function with fewer arguments for this purpose.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
---
 drivers/thermal/thermal_core.c |   11 +++++++++++
 include/linux/thermal.h        |   13 +++++++++++++
 2 files changed, 24 insertions(+)

Index: linux-pm/drivers/thermal/thermal_core.c
===================================================================
--- linux-pm.orig/drivers/thermal/thermal_core.c
+++ linux-pm/drivers/thermal/thermal_core.c
@@ -1400,6 +1400,17 @@ struct thermal_zone_device *thermal_zone
 }
 EXPORT_SYMBOL_GPL(thermal_zone_device_register);
 
+struct thermal_zone_device *thermal_tripless_zone_device_register(
+					const char *type,
+					void *devdata,
+					struct thermal_zone_device_ops *ops,
+					const struct thermal_zone_params *tzp)
+{
+	return thermal_zone_device_register_with_trips(type, NULL, 0, 0, devdata,
+						       ops, tzp, 0, 0);
+}
+EXPORT_SYMBOL_GPL(thermal_tripless_zone_device_register);
+
 void *thermal_zone_device_priv(struct thermal_zone_device *tzd)
 {
 	return tzd->devdata;
Index: linux-pm/include/linux/thermal.h
===================================================================
--- linux-pm.orig/include/linux/thermal.h
+++ linux-pm/include/linux/thermal.h
@@ -317,6 +317,12 @@ struct thermal_zone_device *thermal_zone
 					const struct thermal_zone_params *tzp,
 					int passive_delay, int polling_delay);
 
+struct thermal_zone_device *thermal_tripless_zone_device_register(
+					const char *type,
+					void *devdata,
+					struct thermal_zone_device_ops *ops,
+					const struct thermal_zone_params *tzp);
+
 void thermal_zone_device_unregister(struct thermal_zone_device *tz);
 
 void *thermal_zone_device_priv(struct thermal_zone_device *tzd);
@@ -377,6 +383,13 @@ static inline struct thermal_zone_device
 					int passive_delay, int polling_delay);
 { return ERR_PTR(-ENODEV); }
 
+static inline struct thermal_zone_device *thermal_tripless_zone_device_register(
+					const char *type,
+					void *devdata,
+					struct thermal_zone_device_ops *ops,
+					const struct thermal_zone_params *tzp)
+{ return ERR_PTR(-ENODEV); }
+
 static inline void thermal_zone_device_unregister(struct thermal_zone_device *tz)
 { }