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Commit 98cd5796 authored by Tomi Valkeinen's avatar Tomi Valkeinen
Browse files

OMAPDSS: add setup for WB capture mode in dispc_wb_setup() 



dispc_wb_setup() handles configuration only for mem-to-mem case. This
patch adds the necessary configuration to handle also display capture
mode.

We need to set CAPTUREMODE to 0 (continuous capture), and WBDELAYCOUNT
according to the vertical timings of the display, so that the WB FIFO
has time to flush before the next frame starts.

Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 4c055ce0

drivers/video/fbdev/omap2/dss/dispc.c

+15 −0
Original line number Original line Diff line number Diff line
@@ -2859,8 +2859,23 @@ int dispc_wb_setup(const struct omap_dss_writeback_info *wi, 
	l = FLD_MOD(l, mem_to_mem, 19, 19);	/* WRITEBACKMODE */

	l = FLD_MOD(l, mem_to_mem, 19, 19);	/* WRITEBACKMODE */

	if (mem_to_mem)

	if (mem_to_mem)

		l = FLD_MOD(l, 1, 26, 24);	/* CAPTUREMODE */

		l = FLD_MOD(l, 1, 26, 24);	/* CAPTUREMODE */

	else

		l = FLD_MOD(l, 0, 26, 24);	/* CAPTUREMODE */

	dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), l);

	dispc_write_reg(DISPC_OVL_ATTRIBUTES(plane), l);





	if (mem_to_mem) {

		/* WBDELAYCOUNT */

		REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane), 0, 7, 0);

	} else {

		int wbdelay;



		wbdelay = min(mgr_timings->vfp + mgr_timings->vsw +

			mgr_timings->vbp, 255);



		/* WBDELAYCOUNT */

		REG_FLD_MOD(DISPC_OVL_ATTRIBUTES2(plane), wbdelay, 7, 0);

	}



	return r;

	return r;

}

}