From c62bfd02c3e8a2c82f2c32aa0d07738c9d0b5a90 Mon Sep 17 00:00:00 2001 From: Jason Chen Date: Fri, 15 Apr 2011 16:23:13 +0800 Subject: [PATCH] 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 --- drivers/video/mxc/tve.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/video/mxc/tve.c b/drivers/video/mxc/tve.c index 3470bd445ca8..b29c1d5fd5ef 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); -- 2.39.5