From: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
backport/backport-include/linux/thermal.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/backport/backport-include/linux/thermal.h b/backport/backport-include/linux/thermal.h
index d9b8153e..f1663eff 100644
--- a/backport/backport-include/linux/thermal.h
+++ b/backport/backport-include/linux/thermal.h
@@ -3,6 +3,18 @@
#include_next <linux/thermal.h>
#include <linux/version.h>
+#ifdef CONFIG_THERMAL
+#if LINUX_VERSION_IS_LESS(5,9,0)
+static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
+{ return 0; }
+#endif /* < 5.9.0 */
+#else /* CONFIG_THERMAL */
+#if LINUX_VERSION_IS_LESS(5,9,0)
+static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
+{ return -ENODEV; }
+#endif /* < 5.9.0 */
+#endif /* CONFIG_THERMAL */
+
#if LINUX_VERSION_IS_LESS(5,9,0)
#define thermal_zone_device_enable LINUX_BACKPORT(thermal_zone_device_enable)
static inline int thermal_zone_device_enable(struct thermal_zone_device *tz)
--
2.45.2
