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Commit 3a38ed53 authored by Tomi Valkeinen's avatar Tomi Valkeinen
Browse files

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: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
parent 61f3c40b

drivers/gpu/drm/omapdrm/dss/dispc.c

+8 −0
Original line number Diff line number Diff line
@@ -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)

include/video/omapdss.h

+2 −0
Original line number Diff line number Diff line
@@ -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