drm/msm/dpu: Remove dpu_crtc_get_mixer_height

dpu_crtc_get_mixer_height() is only used once and the value it
returns can be easily derived from the calling function.

v3: No changes
Reviewed-by: NSean Paul <sean@poorly.run>
Signed-off-by: NJordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: NSean Paul <seanpaul@chromium.org>
Signed-off-by: NRob Clark <robdclark@gmail.com>

drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c

@@ -495,7 +495,6 @@ static void _dpu_crtc_setup_mixers(struct drm_crtc *crtc)
 static void _dpu_crtc_setup_lm_bounds(struct drm_crtc *crtc,
 		struct drm_crtc_state *state)
 {
-	struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc);
 	struct dpu_crtc_state *cstate = to_dpu_crtc_state(state);
 	struct drm_display_mode *adj_mode = &state->adjusted_mode;
 	u32 crtc_split_width = _dpu_crtc_get_mixer_width(cstate, adj_mode);
@@ -506,7 +505,7 @@ static void _dpu_crtc_setup_lm_bounds(struct drm_crtc *crtc,
 		r->x1 = crtc_split_width * i;
 		r->y1 = 0;
 		r->x2 = r->x1 + crtc_split_width;
-		r->y2 = dpu_crtc_get_mixer_height(dpu_crtc, cstate, adj_mode);
+		r->y2 = adj_mode->vdisplay;
 
 		trace_dpu_crtc_setup_lm_bounds(DRMID(crtc), i, r);
 	}

drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.h

@@ -236,19 +236,6 @@ static inline bool dpu_crtc_state_is_stereo(struct dpu_crtc_state *cstate)
 	return cstate->num_mixers == CRTC_DUAL_MIXERS;
 }
 
-/**
- * dpu_crtc_get_mixer_height - get the mixer height
- * Mixer height will be same as panel height
- */
-static inline int dpu_crtc_get_mixer_height(struct dpu_crtc *dpu_crtc,
-		struct dpu_crtc_state *cstate, struct drm_display_mode *mode)
-{
-	if (!dpu_crtc || !cstate || !mode)
-		return 0;
-
-	return mode->vdisplay;
-}
-
 /**
  * dpu_crtc_frame_pending - retun the number of pending frames
  * @crtc: Pointer to drm crtc object