[PATCH 11/14] drm/i915: Only use update_wm_{pre, post} for pre-ilk platforms

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From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>

Now that vlv/chv have more proper wm programming support, let's reduce
the the update_wm_{pre,post} flags to only cover the pre-ilk platforms.
When we finally convert those as well we can drop these flags entirely.

Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/intel_display.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 14feac6855e8..9d788504cbda 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12529,21 +12529,25 @@ int intel_plane_atomic_calc_changes(struct drm_crtc_state *crtc_state,
 			 turn_off, turn_on, mode_changed);
 
 	if (turn_on) {
-		pipe_config->update_wm_pre = true;
+		if (INTEL_GEN(dev_priv) < 5)
+			pipe_config->update_wm_pre = true;
 
 		/* must disable cxsr around plane enable/disable */
 		if (plane->id != PLANE_CURSOR)
 			pipe_config->disable_cxsr = true;
 	} else if (turn_off) {
-		pipe_config->update_wm_post = true;
+		if (INTEL_GEN(dev_priv) < 5)
+			pipe_config->update_wm_post = true;
 
 		/* must disable cxsr around plane enable/disable */
 		if (plane->id != PLANE_CURSOR)
 			pipe_config->disable_cxsr = true;
 	} else if (intel_wm_need_update(&plane->base, plane_state)) {
-		/* FIXME bollocks */
-		pipe_config->update_wm_pre = true;
-		pipe_config->update_wm_post = true;
+		if (INTEL_GEN(dev_priv) < 5) {
+			/* FIXME bollocks */
+			pipe_config->update_wm_pre = true;
+			pipe_config->update_wm_post = true;
+		}
 	}
 
 	if (visible || was_visible)
-- 
2.7.4

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