[PATCHv2,22/31] drm/omap: DISPC: Fix field order for HDMI

Submitted by Tomi Valkeinen on Feb. 26, 2016, 9:36 a.m.

Details

Message ID 1456479379-6086-23-git-send-email-tomi.valkeinen@ti.com
State New
Headers show
Series "drm/omap: patches for v4.6 part 1" ( rev: 1 ) in DRI devel

Not browsing as part of any series.

Commit Message

Tomi Valkeinen Feb. 26, 2016, 9:36 a.m.
Interlace field order is different between VENC and HDMI. The driver
currently sets the field order for VENC.

This patch adds the code to set the field order for HDMI.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/gpu/drm/omapdrm/dss/dispc.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

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diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 1e7f26985bda..a4274dca384a 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -106,6 +106,13 @@  struct dispc_features {
 	bool has_writeback:1;
 
 	bool supports_double_pixel:1;
+
+	/*
+	 * Field order for VENC is different than HDMI. We should handle this in
+	 * some intelligent manner, but as the SoCs have either HDMI or VENC,
+	 * never both, we can just use this flag for now.
+	 */
+	bool reverse_ilace_field_order:1;
 };
 
 #define DISPC_MAX_NR_FIFOS 5
@@ -2749,6 +2756,9 @@  static int dispc_ovl_setup_common(enum omap_plane plane,
 
 	dispc_ovl_configure_burst_type(plane, rotation_type);
 
+	if (dispc.feat->reverse_ilace_field_order)
+		swap(offset0, offset1);
+
 	dispc_ovl_set_ba0(plane, paddr + offset0);
 	dispc_ovl_set_ba1(plane, paddr + offset1);
 
@@ -3958,6 +3968,7 @@  static const struct dispc_features omap44xx_dispc_feats = {
 	.supports_sync_align	=	true,
 	.has_writeback		=	true,
 	.supports_double_pixel	=	true,
+	.reverse_ilace_field_order =	true,
 };
 
 static const struct dispc_features omap54xx_dispc_feats = {
@@ -3982,6 +3993,7 @@  static const struct dispc_features omap54xx_dispc_feats = {
 	.supports_sync_align	=	true,
 	.has_writeback		=	true,
 	.supports_double_pixel	=	true,
+	.reverse_ilace_field_order =	true,
 };
 
 static int dispc_init_features(struct platform_device *pdev)