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thermal/core: Make cooling device OF node conditional on CONFIG_THERMAL_OF

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The device node pointer stored in struct thermal_cooling_device is
only used by the OF-specific thermal code to associate cooling devices
with thermal zones defined in device tree.

Now that OF and non-OF registration paths are separated and non-OF
users no longer rely on devm_thermal_of_cooling_device_register() with
a NULL device node, the np field is no longer required for non-OF
configurations.

Make this field conditional on CONFIG_THERMAL_OF to reduce memory
footprint and better reflect its usage.

Signed-off-by: Daniel Lezcano <daniel.lezcano@oss.qualcomm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
Acked-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/20260526140802.1059293-16-daniel.lezcano@oss.qualcomm.com
This commit is contained in:
Daniel Lezcano 2026-05-26 16:08:05 +02:00 committed by Daniel Lezcano
parent 27559121b2
commit 5fa8b4225b
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GPG Key ID: A832238A2A4FE84F
1 changed files with 3 additions and 1 deletions
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4
include/linux/thermal.h
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@ -125,7 +125,6 @@ struct thermal_cooling_device {
const char *type;
unsigned long max_state;
struct device device;
struct device_node *np;
void *devdata;
void *stats;
const struct thermal_cooling_device_ops *ops;
@ -133,6 +132,9 @@ struct thermal_cooling_device {
struct mutex lock; /* protect thermal_instances list */
struct list_head thermal_instances;
struct list_head node;
#ifdef CONFIG_THERMAL_OF
struct device_node *np;
#endif
#ifdef CONFIG_THERMAL_DEBUGFS
struct thermal_debugfs *debugfs;
#endif