drm/i915: Store the requested frequency whilst RPS is disabled
If intel_set_rps() is called whilst the hw is disabled, just store the
requested frequency (from the user) for application when we wake the hw
up.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170220094713.22874-2-chris@chris-wilson.co.uk
Reviewed-by: Radoslaw Szwichtenberg <radoslaw.szwichtenberg@intel.com>
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e1878cb..af11c40 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5105,6 +5105,11 @@
GEM_BUG_ON(val > dev_priv->rps.max_freq);
GEM_BUG_ON(val < dev_priv->rps.min_freq);
+ if (!dev_priv->rps.enabled) {
+ dev_priv->rps.cur_freq = val;
+ return 0;
+ }
+
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
err = valleyview_set_rps(dev_priv, val);
else