diff options
| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2015-11-04 18:10:54 +0300 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2015-12-29 12:06:28 +0300 |
| commit | 98cd5796b37074fb6542b1c4042c2fd3862a6f77 (patch) | |
| tree | 033590171231bae53520ef5ae093c11ad39f805e /drivers/video/fbdev/omap2/dss/dispc.c | |
| parent | 4c055ce03b670664a8ac39878b219d94c8ef092f (diff) | |
| download | linux-98cd5796b37074fb6542b1c4042c2fd3862a6f77.tar.xz | |
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: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video/fbdev/omap2/dss/dispc.c')
| -rw-r--r-- | drivers/video/fbdev/omap2/dss/dispc.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/video/fbdev/omap2/dss/dispc.c b/drivers/video/fbdev/omap2/dss/dispc.c index 6018518c1b25..c3ba555737b8 100644 --- a/drivers/video/fbdev/omap2/dss/dispc.c +++ b/drivers/video/fbdev/omap2/dss/dispc.c @@ -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 */ if (mem_to_mem) 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); + 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; } |