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 --- drivers/gpu/drm/omapdrm/dss/dispc.c | 8 ++++++++ include/video/omapdss.h | 2 ++ 2 files changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/omapdrm/dss/dispc.c b/drivers/gpu/drm/omapdrm/dss/dispc.c index 6b50476ec669..1e7f26985bda 100644 --- a/drivers/gpu/drm/omapdrm/dss/dispc.c +++ b/drivers/gpu/drm/omapdrm/dss/dispc.c @@ -104,6 +104,8 @@ struct dispc_features { bool supports_sync_align:1;
bool has_writeback:1; + + bool supports_double_pixel:1; };
#define DISPC_MAX_NR_FIFOS 5 @@ -3287,6 +3289,10 @@ void dispc_mgr_set_timings(enum omap_channel channel, } 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 @@ static const struct dispc_features omap44xx_dispc_feats = { .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 @@ static const struct dispc_features omap54xx_dispc_feats = { .set_max_preload = true, .supports_sync_align = true, .has_writeback = true, + .supports_double_pixel = true, };
static int dispc_init_features(struct platform_device *pdev) diff --git a/include/video/omapdss.h b/include/video/omapdss.h index 86f28a92281a..6c1a3e1b4d55 100644 --- a/include/video/omapdss.h +++ b/include/video/omapdss.h @@ -367,6 +367,8 @@ struct omap_video_timings { enum omap_dss_signal_level de_level; /* Pixel clock edges to drive HSYNC and VSYNC signals */ enum omap_dss_signal_edge sync_pclk_edge; + + bool double_pixel; };
/* Hardcoded timings for tv modes. Venc only uses these to