[PATCH 2/7] drm/i915: Store the requested frequency whilst RPS is disabled

Chris Wilson chris at chris-wilson.co.uk
Sat Feb 18 18:32:46 UTC 2017


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 at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/intel_pm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e1878cb5d569..af11c4090c07 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5105,6 +5105,11 @@ int intel_set_rps(struct drm_i915_private *dev_priv, u8 val)
 	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
-- 
2.11.0



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