From: Zhang Rui <[email protected]> When a new cooling device is registered, we need to update the thermal zone to set the new registered cooling device to a proper state.
This fixes a problem that the system is cool, while the fan devices are left running on full speed after boot, if fan device is registered after thermal zone device. CC: <[email protected]> #3.18+ Reference:https://bugzilla.kernel.org/show_bug.cgi?id=92431 Tested-by: Manuel Krause <[email protected]> Tested-by: szegad <[email protected]> Tested-by: prash <[email protected]> Tested-by: amish <[email protected]> Signed-off-by: Zhang Rui <[email protected]> Signed-off-by: Chen Yu <[email protected]> --- drivers/thermal/thermal_core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index c3bdb48..09c78a4 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -1450,6 +1450,7 @@ __thermal_cooling_device_register(struct device_node *np, const struct thermal_cooling_device_ops *ops) { struct thermal_cooling_device *cdev; + struct thermal_instance *pos, *next; int result; if (type && strlen(type) >= THERMAL_NAME_LENGTH) @@ -1494,6 +1495,15 @@ __thermal_cooling_device_register(struct device_node *np, /* Update binding information for 'this' new cdev */ bind_cdev(cdev); + list_for_each_entry_safe(pos, next, &cdev->thermal_instances, cdev_node) { + if (next->cdev_node.next == &cdev->thermal_instances) { + thermal_zone_device_update(next->tz); + break; + } + if (pos->tz != next->tz) + thermal_zone_device_update(pos->tz); + } + return cdev; } -- 1.8.4.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
