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OMAPDSS: APPLY: add dss_set_go_bits() 

Currently dss_write_regs() implicitely sets the GO bits for all managers
with shadow dirty flags set. This is a bit misleading, as one does not
presume "write registers" function to also set the GO bit.

Thus this patch splits the setting of GO bits into a separate function,
dss_set_go_bits, which is used after writing the registers.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2011-11-25 17:32:20 +02:00
parent 5b2141719a
commit 3ab15b2aa7
1 changed files with 33 additions and 10 deletions
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43
drivers/video/omap2/dss/apply.c
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@ -715,18 +715,37 @@ static void dss_write_regs(void)
}
dss_mgr_write_regs(mgr);
if (need_go(mgr)) {
mp->busy = true;
if (!dss_data.irq_enabled && need_isr())
dss_register_vsync_isr();
dispc_mgr_go(mgr->id);
}
}
}
static void dss_set_go_bits(void)
{
const int num_mgrs = omap_dss_get_num_overlay_managers();
int i;
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 || mgr_manual_update(mgr) || mp->busy)
continue;
if (!need_go(mgr))
continue;
mp->busy = true;
if (!dss_data.irq_enabled && need_isr())
dss_register_vsync_isr();
dispc_mgr_go(mgr->id);
}
}
void dss_mgr_start_update(struct omap_overlay_manager *mgr)
{
struct mgr_priv_data *mp = get_mgr_priv(mgr);
@ -848,6 +867,7 @@ static void dss_apply_irq_handler(void *data, u32 mask)
}
dss_write_regs();
dss_set_go_bits();
extra_updating = extra_info_update_ongoing();
if (!extra_updating)
@ -912,6 +932,7 @@ int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
omap_dss_mgr_apply_mgr(mgr);
dss_write_regs();
dss_set_go_bits();
spin_unlock_irqrestore(&data_lock, flags);
@ -1016,6 +1037,7 @@ int dss_mgr_enable(struct omap_overlay_manager *mgr)
dss_mgr_setup_fifos(mgr);
dss_write_regs();
dss_set_go_bits();
if (!mgr_manual_update(mgr))
mp->updating = true;
@ -1392,6 +1414,7 @@ int dss_ovl_enable(struct omap_overlay *ovl)
dss_ovl_setup_fifo(ovl);
dss_write_regs();
dss_set_go_bits();
spin_unlock_irqrestore(&data_lock, flags);
@ -1426,8 +1449,8 @@ int dss_ovl_disable(struct omap_overlay *ovl)
spin_lock_irqsave(&data_lock, flags);
dss_apply_ovl_enable(ovl, false);
dss_write_regs();
dss_set_go_bits();
spin_unlock_irqrestore(&data_lock, flags);