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[PATCH] phy: phy-twl4030-usb: emit VBUS status events to userspace

Started byMatt Ranostay <mranostay@gmail.com>
First post2016-09-21 05:00 +0200
Last post2016-09-21 23:30 +0200
Articles 2 — 2 participants

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  [PATCH] phy: phy-twl4030-usb: emit VBUS status events to userspace Matt Ranostay <mranostay@gmail.com> - 2016-09-21 05:00 +0200
    Re: [PATCH] phy: phy-twl4030-usb: emit VBUS status events to  userspace Tony Lindgren <tony@atomide.com> - 2016-09-21 23:30 +0200

#1487775 — [PATCH] phy: phy-twl4030-usb: emit VBUS status events to userspace

FromMatt Ranostay <mranostay@gmail.com>
Date2016-09-21 05:00 +0200
Subject[PATCH] phy: phy-twl4030-usb: emit VBUS status events to userspace
Message-ID<sjFVn-3eu-5@gated-at.bofh.it>
Emit KOBJ_ONLINE/KOBJ_OFFLINE action uevent on VBUS status changes.

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
---
 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 d9b10a39a2cf..4830392c2fe1 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -316,6 +316,9 @@ static enum musb_vbus_id_status
 			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);
 
-- 
2.7.4

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#1488427 — Re: [PATCH] phy: phy-twl4030-usb: emit VBUS status events to userspace

FromTony Lindgren <tony@atomide.com>
Date2016-09-21 23:30 +0200
SubjectRe: [PATCH] phy: phy-twl4030-usb: emit VBUS status events to userspace
Message-ID<sjXfz-5O8-9@gated-at.bofh.it>
In reply to#1487775
* Matt Ranostay <mranostay@gmail.com> [160920 19:58]:
> Emit KOBJ_ONLINE/KOBJ_OFFLINE action uevent on VBUS status changes.

Makes sense for configuring USB gadgets on demand when connected:

Acked-by: Tony Lindgren <tony@atomide.com>

> 
> Cc: Tony Lindgren <tony@atomide.com>
> Signed-off-by: Matt Ranostay <matt@ranostay.consulting>
> ---
>  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 d9b10a39a2cf..4830392c2fe1 100644
> --- a/drivers/phy/phy-twl4030-usb.c
> +++ b/drivers/phy/phy-twl4030-usb.c
> @@ -316,6 +316,9 @@ static enum musb_vbus_id_status
>  			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);
>  
> -- 
> 2.7.4
> 

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