[PATCH v6 12/15] drm/msm/dpu: move layout setup population out of dpu_plane_prepare_fb()

[Dmitry Baryshkov]

Move the call to dpu_format_populate_plane_sizes() to the atomic_check
step, so that any issues with the FB layout can be reported as early as
possible.

At the same time move the call to dpu_format_populate_addrs() to
dpu_plane_sspp_atomic_update(). This way the all layout management is
performed only for the visible planes: the .prepare_fb callback is
called for not visible planes too, so keeping dpu_format_populate_addrs
in dpu_plane_prepare_fb() will require dpu_format_populate_plane_sizes()
to be called for !visible planes too.

Reviewed-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 26 +++++++++++---------------
 1 file changed, 11 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index df95377b98fc..3045bda8a7b7 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -675,19 +675,6 @@ static int dpu_plane_prepare_fb(struct drm_plane *plane,
 		}
 	}
 
-	ret = dpu_format_populate_plane_sizes(new_state->fb, &pstate->layout);
-	if (ret) {
-		DPU_ERROR_PLANE(pdpu, "failed to get format plane sizes, %d\n", ret);
-		if (pstate->aspace)
-			msm_framebuffer_cleanup(new_state->fb, pstate->aspace,
-						pstate->needs_dirtyfb);
-		return ret;
-	}
-
-	dpu_format_populate_addrs(pstate->aspace,
-				  new_state->fb,
-				  &pstate->layout);
-
 	return 0;
 }
 
@@ -863,6 +850,12 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
 		return -E2BIG;
 	}
 
+	ret = dpu_format_populate_plane_sizes(new_plane_state->fb, &pstate->layout);
+	if (ret) {
+		DPU_ERROR_PLANE(pdpu, "failed to get format plane sizes, %d\n", ret);
+		return ret;
+	}
+
 	fmt = msm_framebuffer_format(new_plane_state->fb);
 
 	max_linewidth = pdpu->catalog->caps->max_linewidth;
@@ -1102,7 +1095,8 @@ static void dpu_plane_sspp_update_pipe(struct drm_plane *plane,
 		_dpu_plane_set_qos_remap(plane, pipe);
 }
 
-static void dpu_plane_sspp_atomic_update(struct drm_plane *plane)
+static void dpu_plane_sspp_atomic_update(struct drm_plane *plane,
+					 struct drm_plane_state *new_state)
 {
 	struct dpu_plane *pdpu = to_dpu_plane(plane);
 	struct drm_plane_state *state = plane->state;
@@ -1123,6 +1117,8 @@ static void dpu_plane_sspp_atomic_update(struct drm_plane *plane)
 	pstate->needs_qos_remap |= (is_rt_pipe != pdpu->is_rt_pipe);
 	pdpu->is_rt_pipe = is_rt_pipe;
 
+	dpu_format_populate_addrs(pstate->aspace, new_state->fb, &pstate->layout);
+
 	DPU_DEBUG_PLANE(pdpu, "FB[%u] " DRM_RECT_FP_FMT "->crtc%u " DRM_RECT_FMT
 			", %p4cc ubwc %d\n", fb->base.id, DRM_RECT_FP_ARG(&state->src),
 			crtc->base.id, DRM_RECT_ARG(&state->dst),
@@ -1187,7 +1183,7 @@ static void dpu_plane_atomic_update(struct drm_plane *plane,
 	if (!new_state->visible) {
 		_dpu_plane_atomic_disable(plane);
 	} else {
-		dpu_plane_sspp_atomic_update(plane);
+		dpu_plane_sspp_atomic_update(plane, new_state);
 	}
 }
 

-- 
2.39.2