drm/i915/skl: Document the WM read latency W/A with its name

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 9b9433f1e1c7..613827596aad 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1701,6 +1701,8 @@ static void intel_read_wm_latency(struct drm_device *dev, uint16_t wm[8])
                                 GEN9_MEM_LATENCY_LEVEL_MASK;
 
                 /*
+                 * WaWmMemoryReadLatency:skl
+                 *
                  * punit doesn't take into account the read latency so we need
                  * to add 2us to the various latency levels we retrieve from
                  * the punit.