diff options
| author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2016-02-01 12:02:07 -0800 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2016-02-01 12:03:36 -0800 |
| commit | 60e5ffe329b090155ec860e2f31dc8d505ec7acd (patch) | |
| tree | 8e3cab3af970fb15b6d716e50985fdf4dbe08d88 /drivers/gpu/drm/i915/i915_debugfs.c | |
| parent | dc9b5a0c631115118267255837ac9df682fb79d1 (diff) | |
| download | lwn-60e5ffe329b090155ec860e2f31dc8d505ec7acd.tar.gz lwn-60e5ffe329b090155ec860e2f31dc8d505ec7acd.zip | |
drm/i915: Add PSR main link standby support back
Link standby support has been deprecated with 'commit 89251b177
("drm/i915: PSR: deprecate link_standby support for core platforms.")'
The reason for that is that main link in full off offers more power
savings and on HSW and BDW implementations on source side had known
bugs with link standby.
However that same HSD report only mentions BDW and HSW and tells that
a fix was going to new platforms. Since on Skylake link standby
didn't cause the bad blank flickering screens seen on HSW and BDW
let's respect VBT again for this and future platforms.
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_debugfs.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_debugfs.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 863012a2602e..ec0c2a05eed6 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -2583,6 +2583,10 @@ static int i915_edp_psr_status(struct seq_file *m, void *data) enabled = true; } } + + seq_printf(m, "Main link in standby mode: %s\n", + yesno(dev_priv->psr.link_standby)); + seq_printf(m, "HW Enabled & Active bit: %s", yesno(enabled)); if (!HAS_DDI(dev)) |