[PATCH 1/2] drm/i915: Update only cur_freq without setting RPNSWREQ when device is suspended

[Sagar Arun Kamble]

If min/max frequency is updated from debugfs/sysfs and device is
suspended, just update the driver tracking state cur_freq and it will
come into effect when HW becomes busy next.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 5d39ad2..57ded11 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -5064,6 +5064,13 @@ void gen6_rps_boost(struct drm_i915_private *dev_priv,
 
 void intel_set_rps(struct drm_i915_private *dev_priv, u8 val)
 {
+	lockdep_assert_held(&dev_priv->rps.hw_lock);
+
+	if (!dev_priv->gt.awake) {
+		dev_priv->rps.cur_freq = val;
+		return;
+	}
+
 	if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
 		valleyview_set_rps(dev_priv, val);
 	else
-- 
1.9.1