drm/msm/sde: partial update of display output
Analyze the connector and crtc regions of interest and modify
the layer mixer output to match the user's desired output roi.
This patch adds SDE support for ROIs that are centered and
symmetric around the layer mixer split point.
Change-Id: I681a8e191a542b74b84fdb0d6d3542de3f332355
Signed-off-by: Lloyd Atkinson <latkinso@codeaurora.org>
diff --git a/drivers/gpu/drm/msm/sde/sde_plane.c b/drivers/gpu/drm/msm/sde/sde_plane.c
index bd6b302..8662207 100644
--- a/drivers/gpu/drm/msm/sde/sde_plane.c
+++ b/drivers/gpu/drm/msm/sde/sde_plane.c
@@ -2204,6 +2204,7 @@
struct drm_crtc *crtc;
struct drm_framebuffer *fb;
struct sde_rect src, dst;
+ const struct sde_rect *crtc_roi;
bool q16_data = true;
int idx;
@@ -2283,6 +2284,11 @@
}
}
+ /* re-program the output rects always in the case of partial update */
+ sde_crtc_get_crtc_roi(crtc->state, &crtc_roi);
+ if (!sde_kms_rect_is_null(crtc_roi))
+ pstate->dirty |= SDE_PLANE_DIRTY_RECTS;
+
if (pstate->dirty & SDE_PLANE_DIRTY_RECTS)
memset(&(psde->pipe_cfg), 0, sizeof(struct sde_hw_pipe_cfg));
@@ -2320,6 +2326,13 @@
src.y &= ~0x1;
}
+ /*
+ * adjust layer mixer position of the sspp in the presence
+ * of a partial update to the active lm origin
+ */
+ dst.x -= crtc_roi->x;
+ dst.y -= crtc_roi->y;
+
psde->pipe_cfg.src_rect = src;
psde->pipe_cfg.dst_rect = dst;