drm/i915: Remove PSR Perf Counter for SKL+

[karo-tx-linux.git] / drivers / gpu / drm / i915 / i915_debugfs.c

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index b28da6fd7540ea54655e87315267e5f87bfe0fc7..a728ff11e3892045dfcd0afaad8f196b04343a4c 100644 (file)
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2582,8 +2582,11 @@ static int i915_edp_psr_status(struct seq_file *m, void *data)
                }
        seq_puts(m, "\n");
 
-       /* CHV PSR has no kind of performance counter */
-       if (HAS_DDI(dev)) {
+       /*
+        * VLV/CHV PSR has no kind of performance counter
+        * SKL+ Perf counter is reset to 0 everytime DC state is entered
+        */
+       if (IS_HASWELL(dev) || IS_BROADWELL(dev)) {
                psrperf = I915_READ(EDP_PSR_PERF_CNT) &
                        EDP_PSR_PERF_CNT_MASK;