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drm/i915: PSR link standby at debugfs 

It is useful to know at debug time if we are keeping main link on.

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Rodrigo Vivi 2015-01-12 10:14:33 -08:00 committed by Daniel Vetter
parent 0243f7baca
commit fb49581415
1 changed files with 3 additions and 0 deletions
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3
drivers/gpu/drm/i915/i915_debugfs.c
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@ -2248,6 +2248,9 @@ static int i915_edp_psr_status(struct seq_file *m, void *data)
} }
seq_puts(m, "\n"); seq_puts(m, "\n");
seq_printf(m, "Link standby: %s\n",
yesno((bool)dev_priv->psr.link_standby));
/* CHV PSR has no kind of performance counter */ /* CHV PSR has no kind of performance counter */
if (HAS_PSR(dev) && HAS_DDI(dev)) { if (HAS_PSR(dev) && HAS_DDI(dev)) {
psrperf = I915_READ(EDP_PSR_PERF_CNT(dev)) & psrperf = I915_READ(EDP_PSR_PERF_CNT(dev)) &