[PATCH v3 046/105] drm/vc4: hvs: Remove mode_set_nofb

[Maxime Ripard]

Now that the only thing that remains in the mode_set_nofb callback for the
HVS is the TXP muxing, and since that part is already covered by the FIFO
channel allocation / muxing, the whole function is basically redundant and
we can just remove it.

Signed-off-by: Maxime Ripard <maxime at cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_crtc.c |  2 --
 drivers/gpu/drm/vc4/vc4_drv.h  |  1 -
 drivers/gpu/drm/vc4/vc4_hvs.c  | 32 --------------------------------
 3 files changed, 35 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_crtc.c b/drivers/gpu/drm/vc4/vc4_crtc.c
index 0a67b27cec9b..a69e0d456b79 100644
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
@@ -380,8 +380,6 @@ static void vc4_crtc_mode_set_nofb(struct drm_crtc *crtc)
 
 	if (!vc4_state->feed_txp)
 		vc4_crtc_config_pv(crtc);
-
-	vc4_hvs_mode_set_nofb(crtc);
 }
 
 static void require_hvs_enabled(struct drm_device *dev)
diff --git a/drivers/gpu/drm/vc4/vc4_drv.h b/drivers/gpu/drm/vc4/vc4_drv.h
index 5520a22f8126..d86228e1e338 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.h
+++ b/drivers/gpu/drm/vc4/vc4_drv.h
@@ -876,7 +876,6 @@ int vc4_hvs_atomic_check(struct drm_crtc *crtc, struct drm_crtc_state *state);
 void vc4_hvs_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
 void vc4_hvs_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state);
 void vc4_hvs_atomic_flush(struct drm_crtc *crtc, struct drm_crtc_state *state);
-void vc4_hvs_mode_set_nofb(struct drm_crtc *crtc);
 void vc4_hvs_dump_state(struct drm_device *dev);
 void vc4_hvs_unmask_underrun(struct drm_device *dev, int channel);
 void vc4_hvs_mask_underrun(struct drm_device *dev, int channel);
diff --git a/drivers/gpu/drm/vc4/vc4_hvs.c b/drivers/gpu/drm/vc4/vc4_hvs.c
index 754aff3966bd..ec58870acb7b 100644
--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -441,38 +441,6 @@ void vc4_hvs_atomic_flush(struct drm_crtc *crtc,
 	}
 }
 
-void vc4_hvs_mode_set_nofb(struct drm_crtc *crtc)
-{
-	struct drm_device *dev = crtc->dev;
-	struct vc4_dev *vc4 = to_vc4_dev(dev);
-	struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
-	struct vc4_crtc_state *vc4_state = to_vc4_crtc_state(crtc->state);
-
-	if (vc4_crtc->data->hvs_output == 2) {
-		u32 dispctrl;
-		u32 dsp3_mux;
-
-		/*
-		 * SCALER_DISPCTRL_DSP3 = X, where X < 2 means 'connect DSP3 to
-		 * FIFO X'.
-		 * SCALER_DISPCTRL_DSP3 = 3 means 'disable DSP 3'.
-		 *
-		 * DSP3 is connected to FIFO2 unless the transposer is
-		 * enabled. In this case, FIFO 2 is directly accessed by the
-		 * TXP IP, and we need to disable the FIFO2 -> pixelvalve1
-		 * route.
-		 */
-		if (vc4_state->feed_txp)
-			dsp3_mux = VC4_SET_FIELD(3, SCALER_DISPCTRL_DSP3_MUX);
-		else
-			dsp3_mux = VC4_SET_FIELD(2, SCALER_DISPCTRL_DSP3_MUX);
-
-		dispctrl = HVS_READ(SCALER_DISPCTRL) &
-			   ~SCALER_DISPCTRL_DSP3_MUX_MASK;
-		HVS_WRITE(SCALER_DISPCTRL, dispctrl | dsp3_mux);
-	}
-}
-
 void vc4_hvs_mask_underrun(struct drm_device *dev, int channel)
 {
 	struct vc4_dev *vc4 = to_vc4_dev(dev);
-- 
git-series 0.9.1