diff options
| author | Jason Chen <b02280@freescale.com> | 2011-04-15 16:23:13 +0800 |
|---|---|---|
| committer | Richard Zhao <richard.zhao@freescale.com> | 2011-04-19 15:03:47 +0800 |
| commit | 896fad75c6332f3e0a6a55d3da4183a97e0b7b23 (patch) | |
| tree | 512d12c393a8ad32824495811be118e85bd9e66f | |
| parent | fee71a5e1698480a25d08d5a1c8338b015b998b7 (diff) | |
ENGR00141312 tve: add uevent for tve cable detection
When cable mode changed, below uevent will be sent out:
EVENT=NONE
EVENT=CVBS0
EVENT=YPBPR
EVENT=SVIDEO
under /sys/devices/platform/tve.0
Signed-off-by: Jason Chen <b02280@freescale.com>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
| -rw-r--r-- | drivers/video/mxc/tve.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/video/mxc/tve.c b/drivers/video/mxc/tve.c index 3470bd445ca..b29c1d5fd5e 100644 --- a/drivers/video/mxc/tve.c +++ b/drivers/video/mxc/tve.c @@ -745,6 +745,8 @@ static int tve_update_detect_status(void) u32 cd_cont_reg; u32 timeout = 40; unsigned long lock_flags; + char event_string[16]; + char *envp[] = { event_string, NULL }; spin_lock_irqsave(&tve_lock, lock_flags); @@ -826,8 +828,18 @@ static int tve_update_detect_status(void) __raw_writel(int_ctl | CD_SM_INT | CD_LM_INT, tve.base + tve_regs->tve_int_cont_reg); - if (old_detect != tve.detect) + if (old_detect != tve.detect) { sysfs_notify(&tve.pdev->dev.kobj, NULL, "headphone"); + if (tve.detect == 1) + sprintf(event_string, "EVENT=CVBS0"); + else if (tve.detect == 3) + sprintf(event_string, "EVENT=YPBPR"); + else if (tve.detect == 4) + sprintf(event_string, "EVENT=SVIDEO"); + else + sprintf(event_string, "EVENT=NONE"); + kobject_uevent_env(&tve.pdev->dev.kobj, KOBJ_CHANGE, envp); + } dev_dbg(&tve.pdev->dev, "detect = %d mode = %d\n", tve.detect, tve.output_mode); |