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authorLeonard Crestez <leonard.crestez@nxp.com>2019-11-26 17:17:13 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2019-11-29 12:04:50 +0100
commit36a8015f89e40f7c9c91cc7e6d028fa288dad27b (patch)
treec6b72f79e678029514d2bf3f385a62d1df9a1f4e /kernel/power
parent342035f66c866f4ad750477b21b210e98d1f6818 (diff)
downloadlinux-36a8015f89e40f7c9c91cc7e6d028fa288dad27b.tar.bz2
PM / QoS: Restore DEV_PM_QOS_MIN/MAX_FREQUENCY
Support for adding per-device frequency limits was removed in commit 2aac8bdf7a0f ("PM: QoS: Drop frequency QoS types from device PM QoS") after cpufreq switched to use a new "freq_constraints" construct. Restore support for per-device freq limits but base this upon freq_constraints. This is primarily meant to be used by the devfreq subsystem. This removes the "static" marking on freq_qos_apply but does not export it for modules. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Tested-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/power')
-rw-r--r--kernel/power/qos.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index a45cba7df0ae..83edf8698118 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -714,8 +714,10 @@ s32 freq_qos_read_value(struct freq_constraints *qos,
* @req: Constraint request to apply.
* @action: Action to perform (add/update/remove).
* @value: Value to assign to the QoS request.
+ *
+ * This is only meant to be called from inside pm_qos, not drivers.
*/
-static int freq_qos_apply(struct freq_qos_request *req,
+int freq_qos_apply(struct freq_qos_request *req,
enum pm_qos_req_action action, s32 value)
{
int ret;