[Intel-gfx] [PATCH v3] i915/drrs/debugfs: psr status info addition

[Ramalingam C]

From: "C, Ramalingam" <ramalingam.c at intel.com>

Existing debugfs entry i915_drrs_status is updated with whether PSR
is the cause for DRRS disabled state.

[v2]: Dropped the module parameter details as ctl moved from module
      parameter to debugfs. [Rodrigo]

[v3]: Crtc ID information is dropped as there is no immediate usecase.
      [Rodrigo].

Signed-off-by: C, Ramalingam <ramalingam.c at intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 0c1501fe4c9f..ea36d4e4d881 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -3567,7 +3567,10 @@ static void drrs_status_per_crtc(struct seq_file *m,
 
 		/* disable_drrs() will make drrs->dp NULL */
 		if (!drrs->dp) {
-			seq_puts(m, "Idleness DRRS: Disabled");
+			seq_puts(m, "Idleness DRRS: Disabled\n");
+			if (dev_priv->psr.enabled)
+				seq_puts(m,
+				"\tAs PSR is enabled, DRRS is not enabled\n");
 			mutex_unlock(&drrs->mutex);
 			return;
 		}
-- 
2.7.4