diff options
| author | NeilBrown <neilb@suse.de> | 2012-12-15 10:35:37 +1100 |
|---|---|---|
| committer | Denis 'GNUtoo' Carikli <GNUtoo@no-log.org> | 2013-03-09 14:43:46 +0100 |
| commit | f8d44af473e8ad9043f6bbd6165691d8a209ec2e (patch) | |
| tree | f408928e0b65ca9120fb587a7e7bd516ace46e23 | |
| parent | c76c99f9e7923bc717bfdcd090c39e81a9c773bf (diff) | |
| download | kernel_goldelico_gta04-f8d44af473e8ad9043f6bbd6165691d8a209ec2e.zip kernel_goldelico_gta04-f8d44af473e8ad9043f6bbd6165691d8a209ec2e.tar.gz kernel_goldelico_gta04-f8d44af473e8ad9043f6bbd6165691d8a209ec2e.tar.bz2 | |
twl4030-usb - re-instate event notifications
commit c9721438c009adf8e81d376839ed037c53b9b8d9
usb: musb: twl: use mailbox API to send VBUS or ID events
went a bit too far in removing all event notification
from twl4030-usb. The notifications are still needed for
twl4030_charger.c to know when to enable the charger.
Signed-off-by: NeilBrown <neilb@suse.de>
| -rw-r--r-- | drivers/usb/otg/twl4030-usb.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c index 3d5eb12..e0d98b2 100644 --- a/drivers/usb/otg/twl4030-usb.c +++ b/drivers/usb/otg/twl4030-usb.c @@ -38,6 +38,7 @@ #include <linux/i2c/twl.h> #include <linux/regulator/consumer.h> #include <linux/err.h> +#include <linux/notifier.h> #include <linux/slab.h> /* Register defines */ @@ -393,6 +394,28 @@ static void twl4030_phy_power(struct twl4030_usb *twl, int on) } } +static void do_notify(struct twl4030_usb *twl, + enum omap_musb_vbus_id_status status) +{ + enum usb_phy_events event; + + switch (status) { + case OMAP_MUSB_UNKNOWN: + event = USB_EVENT_NONE; break; + case OMAP_MUSB_ID_GROUND: + event = USB_EVENT_ID; break; + case OMAP_MUSB_ID_FLOAT: + event = USB_EVENT_NONE; break; + case OMAP_MUSB_VBUS_VALID: + event = USB_EVENT_VBUS; break; + case OMAP_MUSB_VBUS_OFF: + event = USB_EVENT_NONE; break; + } + + atomic_notifier_call_chain(&twl->phy.notifier, event, + twl->phy.otg->gadget); +} + static void twl4030_phy_suspend(struct twl4030_usb *twl, int controller_off) { if (twl->asleep) @@ -556,6 +579,7 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) twl4030_phy_suspend(twl, 0); else twl4030_phy_resume(twl); + do_notify(twl, status); omap_musb_mailbox(twl->linkstat); } @@ -579,6 +603,7 @@ static void twl4030_usb_phy_init(struct twl4030_usb *twl) twl->asleep = 0; } + do_notify(twl, status); omap_musb_mailbox(twl->linkstat); } sysfs_notify(&twl->dev->kobj, NULL, "vbus"); @@ -678,6 +703,8 @@ static int __devinit twl4030_usb_probe(struct platform_device *pdev) if (device_create_file(&pdev->dev, &dev_attr_id)) dev_warn(&pdev->dev, "could not create sysfs file\n"); + ATOMIC_INIT_NOTIFIER_HEAD(&twl->phy.notifier); + /* Our job is to use irqs and status from the power module * to keep the transceiver disabled when nothing's connected. * |