[PATCH v3 04/12] drm/i915: Set PKG_C_LATENCY.added_wake_time to 0

[Ville Syrjala]

From: Ville Syrjälä <ville.syrjala at linux.intel.com>

AFAIK PKG_C_LATENCY.added_wake_time only matters for flip queue.
As long as we're not using that there's no point in adding any
extra wake time.

Signed-off-by: Ville Syrjälä <ville.syrjala at linux.intel.com>
---
 drivers/gpu/drm/i915/display/skl_watermark.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/skl_watermark.c b/drivers/gpu/drm/i915/display/skl_watermark.c
index 8080f777910a..9580672827b0 100644
--- a/drivers/gpu/drm/i915/display/skl_watermark.c
+++ b/drivers/gpu/drm/i915/display/skl_watermark.c
@@ -29,12 +29,6 @@
 #include "skl_watermark.h"
 #include "skl_watermark_regs.h"
 
-/*It is expected that DSB can do posted writes to every register in
- * the pipe and planes within 100us. For flip queue use case, the
- * recommended DSB execution time is 100us + one SAGV block time.
- */
-#define DSB_EXE_TIME 100
-
 static void skl_sagv_disable(struct intel_display *display);
 
 /* Stores plane specific WM parameters */
@@ -2946,9 +2940,6 @@ intel_program_dpkgc_latency(struct intel_atomic_state *state)
 	}
 
 	if (fixed_refresh_rate) {
-		added_wake_time = DSB_EXE_TIME +
-			display->sagv.block_time_us;
-
 		latency = skl_watermark_max_latency(display, 1);
 
 		/* Wa_22020432604 */
-- 
2.49.0