AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

OMAP: DSS2: RFBI: add rfbi_bus_lock

Browse Source 
Add similar bus lock to RFBI as is in DSI. The panel driver can use the
bus lock to mark that the RFBI bus is currently in use.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
This commit is contained in:
Tomi Valkeinen 2011-04-21 19:50:31 +03:00
parent c96c92d893
commit 773139f175
2 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/video/omap2/dss/rfbi.c
View File

@ -32,6 +32,7 @@
#include <linux/ktime.h>
#include <linux/hrtimer.h>
#include <linux/seq_file.h>
#include <linux/semaphore.h>
#include <video/omapdss.h>
#include "dss.h"
@ -119,6 +120,8 @@ static struct {
struct completion cmd_done;
atomic_t cmd_fifo_full;
atomic_t cmd_pending;
struct semaphore bus_lock;
} rfbi;
struct update_region {
@ -146,6 +149,18 @@ static void rfbi_enable_clocks(bool enable)
dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK);
}
void rfbi_bus_lock(void)
{
down(&rfbi.bus_lock);
}
EXPORT_SYMBOL(rfbi_bus_lock);
void rfbi_bus_unlock(void)
{
up(&rfbi.bus_lock);
}
EXPORT_SYMBOL(rfbi_bus_unlock);
void omap_rfbi_write_command(const void *buf, u32 len)
{
rfbi_enable_clocks(1);
@ -1022,6 +1037,7 @@ static int omap_rfbihw_probe(struct platform_device *pdev)
rfbi.pdev = pdev;
spin_lock_init(&rfbi.cmd_lock);
sema_init(&rfbi.bus_lock, 1);
init_completion(&rfbi.cmd_done);
atomic_set(&rfbi.cmd_fifo_full, 0);

2
include/video/omapdss.h
View File

@ -214,6 +214,8 @@ int omap_rfbi_enable_te(bool enable, unsigned line);
int omap_rfbi_setup_te(enum omap_rfbi_te_mode mode,
unsigned hs_pulse_time, unsigned vs_pulse_time,
int hs_pol_inv, int vs_pol_inv, int extif_div);
void rfbi_bus_lock(void);
void rfbi_bus_unlock(void);
/* DSI */
void dsi_bus_lock(struct omap_dss_device *dssdev);