drm/omap: DISPC: support double-pixel mode
We need double-pixel mode (pixel repetition) for interlace modes. This
patch adds the necessary support to DISPC to output double-pixel mode.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c
index 6b50476..1e7f269 100644
--- a/drivers/gpu/drm/omapdrm/dss/dispc.c
+++ b/drivers/gpu/drm/omapdrm/dss/dispc.c
@@ -104,6 +104,8 @@
bool supports_sync_align:1;
bool has_writeback:1;
+
+ bool supports_double_pixel:1;
};
#define DISPC_MAX_NR_FIFOS 5
@@ -3287,6 +3289,10 @@
} else {
if (t.interlace)
t.y_res /= 2;
+
+ if (dispc.feat->supports_double_pixel)
+ REG_FLD_MOD(DISPC_CONTROL, t.double_pixel ? 1 : 0,
+ 19, 17);
}
dispc_mgr_set_size(channel, t.x_res, t.y_res);
@@ -3951,6 +3957,7 @@
.set_max_preload = true,
.supports_sync_align = true,
.has_writeback = true,
+ .supports_double_pixel = true,
};
static const struct dispc_features omap54xx_dispc_feats = {
@@ -3974,6 +3981,7 @@
.set_max_preload = true,
.supports_sync_align = true,
.has_writeback = true,
+ .supports_double_pixel = true,
};
static int dispc_init_features(struct platform_device *pdev)