linux-kernel - [PATCH 18/20] phy: phy-twl4030-usb: emit VBUS status events to userspace

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Date:   Fri, 18 Nov 2016 18:58:41 +0530
From:   Kishon Vijay Abraham I <kishon@...com>
To:     <gregkh@...uxfoundation.org>
CC:     <kishon@...com>, <linux-kernel@...r.kernel.org>
Subject: [PATCH 18/20] phy: phy-twl4030-usb: emit VBUS status events to userspace

From: Matt Ranostay <mranostay@...il.com>

Emit KOBJ_ONLINE/KOBJ_OFFLINE action uevent on VBUS status changes.

Cc: Tony Lindgren <tony@...mide.com>
Signed-off-by: Matt Ranostay <matt@...ostay.consulting>
Acked-by: Tony Lindgren <tony@...mide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
---
 drivers/phy/phy-twl4030-usb.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index 87e6334..daf2aa1 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -317,6 +317,9 @@ static bool twl4030_is_driving_vbus(struct twl4030_usb *twl)
 			linkstat = MUSB_VBUS_OFF;
 	}
 
+	kobject_uevent(&twl->dev->kobj, linkstat == MUSB_VBUS_VALID
+					? KOBJ_ONLINE : KOBJ_OFFLINE);
+
 	dev_dbg(twl->dev, "HW_CONDITIONS 0x%02x/%d; link %d\n",
 			status, status, linkstat);
 
-- 
1.7.9.5