Revert "drm/msm/mdp5: provide dynamic bandwidth management"

This reverts commit c1d12c19efd91b9cda5472bc4ec48854e67c24a8.

Breaks armv7 build

  ERROR: modpost: "__aeabi_ldivmod" [drivers/gpu/drm/msm/msm.ko] undefined!

Signed-off-by: Rob Clark <robdclark@chromium.org>

1 files changed, 0 insertions, 42 deletions

diff --git a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
index 85275665558b..c6b69afcbac8 100644
--- a/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
+++ b/drivers/gpu/drm/msm/disp/mdp5/mdp5_plane.c
@@ -154,46 +154,6 @@ static void mdp5_plane_cleanup_fb(struct drm_plane *plane,
 	msm_framebuffer_cleanup(fb, kms->aspace);
 }
 
-/* based on _dpu_plane_calc_bw */
-static void mdp5_plane_calc_bw(struct drm_plane_state *state, struct drm_crtc_state *crtc_state)
-{
-	struct drm_framebuffer *fb = state->fb;
-	struct mdp5_plane_state *pstate = to_mdp5_plane_state(state);
-	struct drm_display_mode *mode = &crtc_state->mode;
-	int bpp;
-	int src_width, src_height, dst_height, fps;
-	u64 plane_bw;
-	u32 hw_latency_lines;
-	u32 prefill_div;
-	u64 scale_factor;
-	int vbp, vpw, vfp;
-
-	src_width = drm_rect_width(&state->src) >> 16;
-	src_height = drm_rect_height(&state->src) >> 16;
-	dst_height = drm_rect_height(&state->dst);
-	fps = drm_mode_vrefresh(mode);
-	vbp = mode->vtotal - mode->vsync_end;
-	vpw = mode->vsync_end - mode->vsync_start;
-	vfp = mode->vsync_start - mode->vdisplay;
-	scale_factor = src_height > dst_height ?
-		mult_frac(src_height, 1, dst_height) : 1;
-
-	bpp = to_mdp_format(msm_framebuffer_format(fb))->cpp;
-
-	plane_bw = src_width * mode->vtotal * fps * bpp * scale_factor;
-
-	hw_latency_lines = 21; /* or 24? */
-	prefill_div = hw_latency_lines;
-	if (vbp + vpw > hw_latency_lines)
-		prefill_div = vbp + vpw;
-#if 0
-	else if (vbp + vpw + vfp < hw_latency_lines)
-		prefill_div = vbp + vpw + vfp;
-#endif
-
-	pstate->plane_bw = max(plane_bw, mult_frac(plane_bw, hw_latency_lines, prefill_div));
-}
-
 static int mdp5_plane_atomic_check_with_state(struct drm_crtc_state *crtc_state,
 					      struct drm_plane_state *state)
 {
@@ -337,8 +297,6 @@ static int mdp5_plane_atomic_check_with_state(struct drm_crtc_state *crtc_state,
 			mdp5_pipe_release(state->state, old_hwpipe);
 			mdp5_pipe_release(state->state, old_right_hwpipe);
 		}
-
-		mdp5_plane_calc_bw(state, crtc_state);
 	} else {
 		mdp5_pipe_release(state->state, mdp5_state->hwpipe);
 		mdp5_pipe_release(state->state, mdp5_state->r_hwpipe);