[PATCH v2 5/5] drm/i915/display: Load the lut values and enable sharpness

[Nemesa Garg <nemesa.garg@xxxxxxxxx>]

Load the lut values during pipe enable.

v2: Add the display version check 

Signed-off-by: Nemesa Garg <nemesa.garg@xxxxxxxxx>
---
 drivers/gpu/drm/i915/display/intel_crtc.c    |  3 +++
 drivers/gpu/drm/i915/display/intel_display.c | 14 +++++++++++++-
 drivers/gpu/drm/i915/display/skl_scaler.c    | 13 ++++++++++++-
 3 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_crtc.c b/drivers/gpu/drm/i915/display/intel_crtc.c
index 25593f6aae7d..74c498733283 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc.c
@@ -383,6 +383,9 @@ int intel_crtc_init(struct drm_i915_private *dev_priv, enum pipe pipe)
 
 	drm_WARN_ON(&dev_priv->drm, drm_crtc_index(&crtc->base) != crtc->pipe);
 
+	if (DISPLAY_VER(dev_priv) >= 20)
+		drm_crtc_create_sharpening_strength_property(&crtc->base);
+
 	return 0;
 
 fail:
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 3d05bd203ca8..b1384a8d9e5d 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -1722,6 +1722,9 @@ static void hsw_crtc_enable(struct intel_atomic_state *state,
 		intel_crtc_wait_for_next_vblank(wa_crtc);
 		intel_crtc_wait_for_next_vblank(wa_crtc);
 	}
+
+	if (new_crtc_state->hw.casf_params.strength_changed)
+		intel_filter_lut_load(crtc, new_crtc_state);
 }
 
 void ilk_pfit_disable(const struct intel_crtc_state *old_crtc_state)
@@ -2444,8 +2447,12 @@ static int intel_crtc_compute_config(struct intel_atomic_state *state,
 	if (crtc_state->has_pch_encoder)
 		return ilk_fdi_compute_config(crtc, crtc_state);
 
-	if (crtc_state->hw.casf_params.strength_changed)
+	intel_sharpen_strength_changed(state);
+
+	if (crtc_state->hw.casf_params.strength_changed) {
 		intel_sharpness_scaler_compute_config(crtc_state);
+		intel_filter_compute_config(crtc_state);
+	}
 
 	return 0;
 }
@@ -6340,6 +6347,8 @@ int intel_atomic_check(struct drm_device *dev,
 
 	intel_vrr_check_modeset(state);
 
+	intel_sharpen_strength_changed(state);
+
 	ret = drm_atomic_helper_check_modeset(dev, &state->base);
 	if (ret)
 		goto fail;
@@ -6695,6 +6704,9 @@ static void intel_pre_update_crtc(struct intel_atomic_state *state,
 			intel_vrr_set_transcoder_timings(new_crtc_state);
 	}
 
+	if (new_crtc_state->hw.casf_params.strength_changed)
+		intel_sharpen_filter_enable(new_crtc_state);
+
 	intel_fbc_update(state, crtc);
 
 	drm_WARN_ON(&i915->drm, !intel_display_power_is_enabled(i915, POWER_DOMAIN_DC_OFF));
diff --git a/drivers/gpu/drm/i915/display/skl_scaler.c b/drivers/gpu/drm/i915/display/skl_scaler.c
index 5784947175a8..ee5d52244cd4 100644
--- a/drivers/gpu/drm/i915/display/skl_scaler.c
+++ b/drivers/gpu/drm/i915/display/skl_scaler.c
@@ -932,7 +932,7 @@ void skl_scaler_get_config(struct intel_crtc_state *crtc_state)
 
 	/* find scaler attached to this pipe */
 	for (i = 0; i < crtc->num_scalers; i++) {
-		u32 ctl, pos, size;
+		u32 ctl, pos, size, sharp;
 
 		ctl = intel_de_read(dev_priv, SKL_PS_CTRL(crtc->pipe, i));
 		if ((ctl & (PS_SCALER_EN | PS_BINDING_MASK)) != (PS_SCALER_EN | PS_BINDING_PIPE))
@@ -940,6 +940,17 @@ void skl_scaler_get_config(struct intel_crtc_state *crtc_state)
 
 		id = i;
 
+		if (DISPLAY_VER(dev_priv) >= 20) {
+			sharp = intel_de_read(dev_priv, SHARPNESS_CTL(crtc->pipe));
+			if (sharp & FILTER_EN) {
+				crtc_state->hw.casf_params.strength =
+					REG_FIELD_GET(FILTER_STRENGTH_MASK, sharp) - 16;
+				crtc_state->hw.casf_params.need_scaler = true;
+				crtc_state->hw.casf_params.win_size =
+					REG_FIELD_GET(FILTER_SIZE_MASK, sharp);
+			}
+		}
+
 		if (!crtc_state->hw.casf_params.need_scaler)
 			crtc_state->pch_pfit.enabled = true;
 
-- 
2.25.1