[Intel-gfx] [PATCH] drm/i915/psr: report psr2 hw enabled from psr2_ctl

[vathsala nagaraju]

For PSR2 , as per spec, PSR2_CTL bit 31 to be set.
for psr1, bit 31 in SRD_CTL to be set. Reporting
"HW Enabled & Active bit" status for psr2 from SRD_CTL
gives  wrong status.

Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Jim Bride <jim.bride at linux.intel.com>
Signed-off-by: vathsala nagaraju <vathsala.nagaraju at intel.com>
---
 drivers/gpu/drm/i915/i915_debugfs.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index a746130..54e196d 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2567,9 +2567,12 @@ static int i915_edp_psr_status(struct seq_file *m, void *data)
 	seq_printf(m, "Re-enable work scheduled: %s\n",
 		   yesno(work_busy(&dev_priv->psr.work.work)));
 
-	if (HAS_DDI(dev_priv))
-		enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
-	else {
+	if (HAS_DDI(dev_priv)) {
+		if (dev_priv->psr.psr2_support)
+			enabled = I915_READ(EDP_PSR2_CTL) & EDP_PSR2_ENABLE;
+		else
+			enabled = I915_READ(EDP_PSR_CTL) & EDP_PSR_ENABLE;
+	} else {
 		for_each_pipe(dev_priv, pipe) {
 			enum transcoder cpu_transcoder =
 				intel_pipe_to_cpu_transcoder(dev_priv, pipe);
-- 
1.9.1