[4.19.y-cip,16/32] drm: rcar-du: Support interlaced video output through vsp1
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Message ID 1568649046-17420-17-git-send-email-fabrizio.castro@bp.renesas.com
State Rejected
Delegated to: Nobuhiro Iwamatsu
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Series
  • Add PCIe and HDMI support to HiHope RZ/G2M
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Commit Message

Fabrizio Castro Sept. 16, 2019, 3:50 p.m. UTC
From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

commit 4e86c208ddf2da6683a0ee6f8696a9f1b4444018 upstream.

Use the newly exposed VSP1 interface to enable interlaced frame support
through the VSP1 LIF pipelines.

The DSMR register is updated to set the ODEV flag on interlaced
pipelines, thus defining an interlaced stream as having the ODD field
located in the second half (BOTTOM) of the frame buffer.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
---
 drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 1 +
 drivers/gpu/drm/rcar-du/rcar_du_vsp.c  | 1 +
 2 files changed, 2 insertions(+)

Patch
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diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
index 9e5d00a..5441d5a 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c
@@ -288,6 +288,7 @@  static void rcar_du_crtc_set_display_timing(struct rcar_du_crtc *rcrtc)
 	/* Signal polarities */
 	value = ((mode->flags & DRM_MODE_FLAG_PVSYNC) ? DSMR_VSL : 0)
 	      | ((mode->flags & DRM_MODE_FLAG_PHSYNC) ? DSMR_HSL : 0)
+	      | ((mode->flags & DRM_MODE_FLAG_INTERLACE) ? DSMR_ODEV : 0)
 	      | DSMR_DIPM_DISP | DSMR_CSPM;
 	rcar_du_crtc_write(rcrtc, DSMR, value);
 
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
index 72eebed..a042f11 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c
@@ -52,6 +52,7 @@  void rcar_du_vsp_enable(struct rcar_du_crtc *crtc)
 	struct vsp1_du_lif_config cfg = {
 		.width = mode->hdisplay,
 		.height = mode->vdisplay,
+		.interlaced = mode->flags & DRM_MODE_FLAG_INTERLACE,
 		.callback = rcar_du_vsp_complete,
 		.callback_data = crtc,
 	};