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author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-11-16 15:00:22 +0200 |
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committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2012-01-25 13:46:18 +0200 |
commit | fb0119742291b6f30cd97026ee137b2d3d1f4de8 (patch) | |
tree | 2facad7cd414ac20101696e094939a39532a457c | |
parent | e6b0f884520e604408ebda3b60605cabe0a8d162 (diff) | |
download | op-kernel-dev-fb0119742291b6f30cd97026ee137b2d3d1f4de8.zip op-kernel-dev-fb0119742291b6f30cd97026ee137b2d3d1f4de8.tar.gz |
OMAPDSS: APPLY: add fifo merge support funcs
Add mechanism to set/unset the DISPC fifo-merge:
Add new fields to dss_data, fifo_merge and fifo_merge_dirty. These are
similar to the other info/dirty flags in ovl_priv_data and ovl_mgr_data,
but fifo merge is a common attribute to all managers and thus outside
the ovl_mgr_data.
The fifo-merge field is used in the dss_write_regs_common, which handles
writing the register.
dss_apply_fifo_merge() can be used to set/unset the fifo merge field in
the dss_data.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
-rw-r--r-- | drivers/video/omap2/dss/apply.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c index 052dc87..604737f 100644 --- a/drivers/video/omap2/dss/apply.c +++ b/drivers/video/omap2/dss/apply.c @@ -105,6 +105,9 @@ static struct { struct ovl_priv_data ovl_priv_data_array[MAX_DSS_OVERLAYS]; struct mgr_priv_data mgr_priv_data_array[MAX_DSS_MANAGERS]; + bool fifo_merge_dirty; + bool fifo_merge; + bool irq_enabled; } dss_data; @@ -585,11 +588,40 @@ static void dss_mgr_write_regs(struct omap_overlay_manager *mgr) } } +static void dss_write_regs_common(void) +{ + const int num_mgrs = omap_dss_get_num_overlay_managers(); + int i; + + if (!dss_data.fifo_merge_dirty) + return; + + for (i = 0; i < num_mgrs; ++i) { + struct omap_overlay_manager *mgr; + struct mgr_priv_data *mp; + + mgr = omap_dss_get_overlay_manager(i); + mp = get_mgr_priv(mgr); + + if (mp->enabled) { + if (dss_data.fifo_merge_dirty) { + dispc_enable_fifomerge(dss_data.fifo_merge); + dss_data.fifo_merge_dirty = false; + } + + if (mp->updating) + mp->shadow_info_dirty = true; + } + } +} + static void dss_write_regs(void) { const int num_mgrs = omap_dss_get_num_overlay_managers(); int i; + dss_write_regs_common(); + for (i = 0; i < num_mgrs; ++i) { struct omap_overlay_manager *mgr; struct mgr_priv_data *mp; @@ -659,6 +691,8 @@ void dss_mgr_start_update(struct omap_overlay_manager *mgr) dss_mgr_write_regs(mgr); + dss_write_regs_common(); + mp->updating = true; if (!dss_data.irq_enabled && need_isr()) @@ -859,6 +893,15 @@ static void dss_apply_ovl_fifo_thresholds(struct omap_overlay *ovl, op->extra_info_dirty = true; } +static void dss_apply_fifo_merge(bool use_fifo_merge) +{ + if (dss_data.fifo_merge == use_fifo_merge) + return; + + dss_data.fifo_merge = use_fifo_merge; + dss_data.fifo_merge_dirty = true; +} + static void dss_ovl_setup_fifo(struct omap_overlay *ovl) { struct ovl_priv_data *op = get_ovl_priv(ovl); |