diff options
| author | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2010-01-18 15:27:52 +0100 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@nokia.com> | 2010-02-15 14:14:40 +0100 |
| commit | 4f76502374ff91bc80a48a32cabb1009087a3b9d (patch) | |
| tree | bd1541c3501a644c79c6016641547d7d58fbbeb1 /drivers/video/omap2/dss/dsi.c | |
| parent | OMAP: DSS2: improve DSS clk src selection (diff) | |
| download | linux-4f76502374ff91bc80a48a32cabb1009087a3b9d.tar.xz linux-4f76502374ff91bc80a48a32cabb1009087a3b9d.zip | |
OMAP: DSS2: DSI: add dsi_bus_is_locked()
Helper function to clean up the checking of the bus lock.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
Diffstat (limited to 'drivers/video/omap2/dss/dsi.c')
| -rw-r--r-- | drivers/video/omap2/dss/dsi.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 4fdb628427e0..b38974523d48 100644 --- a/drivers/video/omap2/dss/dsi.c +++ b/drivers/video/omap2/dss/dsi.c @@ -309,6 +309,11 @@ void dsi_bus_unlock(void) } EXPORT_SYMBOL(dsi_bus_unlock); +static bool dsi_bus_is_locked(void) +{ + return mutex_is_locked(&dsi.bus_lock); +} + static inline int wait_for_bit_change(const struct dsi_reg idx, int bitnum, int value) { @@ -1959,7 +1964,7 @@ static int dsi_vc_send_bta(int channel) (dsi.debug_write || dsi.debug_read)) DSSDBG("dsi_vc_send_bta %d\n", channel); - WARN_ON(!mutex_is_locked(&dsi.bus_lock)); + WARN_ON(!dsi_bus_is_locked()); if (REG_GET(DSI_VC_CTRL(channel), 20, 20)) { /* RX_FIFO_NOT_EMPTY */ DSSERR("rx fifo not empty when sending BTA, dumping data:\n"); @@ -2010,7 +2015,7 @@ static inline void dsi_vc_write_long_header(int channel, u8 data_type, u32 val; u8 data_id; - WARN_ON(!mutex_is_locked(&dsi.bus_lock)); + WARN_ON(!dsi_bus_is_locked()); /*data_id = data_type | channel << 6; */ data_id = data_type | dsi.vc[channel].dest_per << 6; @@ -2105,7 +2110,7 @@ static int dsi_vc_send_short(int channel, u8 data_type, u16 data, u8 ecc) u32 r; u8 data_id; - WARN_ON(!mutex_is_locked(&dsi.bus_lock)); + WARN_ON(!dsi_bus_is_locked()); if (dsi.debug_write) DSSDBG("dsi_vc_send_short(ch%d, dt %#x, b1 %#x, b2 %#x)\n", @@ -2895,7 +2900,7 @@ static int dsi_set_update_mode(struct omap_dss_device *dssdev, int r = 0; int i; - WARN_ON(!mutex_is_locked(&dsi.bus_lock)); + WARN_ON(!dsi_bus_is_locked()); if (dsi.update_mode != mode) { dsi.update_mode = mode; |