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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 23:08:32 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-25 23:08:32 -0700 |
| commit | f549953c15deab4c54708b39af86d4edecc6cddc (patch) | |
| tree | f0412f989b77cdceab34c18aa85a8a25d5942a1f /drivers/usb/otg | |
| parent | f0deb97ab13ad1f89cd0993f7339655d59788405 (diff) | |
| parent | e04f5f7e423018bcec84c11af2058cdce87816f3 (diff) | |
| download | linux-f549953c15deab4c54708b39af86d4edecc6cddc.tar.gz linux-f549953c15deab4c54708b39af86d4edecc6cddc.tar.xz linux-f549953c15deab4c54708b39af86d4edecc6cddc.zip | |
Merge branch 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* 'usb-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (115 commits)
EHCI: fix direction handling for interrupt data toggles
USB: serial: add IDs for WinChipHead USB->RS232 adapter
USB: OHCI: fix another regression for NVIDIA controllers
usb: gadget: m66592-udc: add pullup function
usb: gadget: m66592-udc: add function for external controller
usb: gadget: r8a66597-udc: add pullup function
usb: renesas_usbhs: support multi driver
usb: renesas_usbhs: inaccessible pipe is not an error
usb: renesas_usbhs: care buff alignment when dma handler
USB: PL2303: correctly handle baudrates above 115200
usb: r8a66597-hcd: fixup USB_PORT_STAT_C_SUSPEND shift
usb: renesas_usbhs: compile/config are rescued
usb: renesas_usbhs: fixup comment-out
usb: update email address in ohci-sh and r8a66597-hcd
usb: r8a66597-hcd: add function for external controller
EHCI: only power off port if over-current is active
USB: mon: Allow to use usbmon without debugfs
USB: EHCI: go back to using the system clock for QH unlinks
ehci: add pci quirk for Ordissimo and RM Slate 100 too
ehci: refactor pci quirk to use standard dmi_check_system method
...
Fix up trivial conflicts in Documentation/feature-removal-schedule.txt
Diffstat (limited to 'drivers/usb/otg')
| -rw-r--r-- | drivers/usb/otg/twl6030-usb.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c index cfb5aa72b196..b4d2c0972b3d 100644 --- a/drivers/usb/otg/twl6030-usb.c +++ b/drivers/usb/otg/twl6030-usb.c @@ -95,11 +95,15 @@ struct twl6030_usb { struct regulator *usb3v3; + /* used to set vbus, in atomic path */ + struct work_struct set_vbus_work; + int irq1; int irq2; u8 linkstat; u8 asleep; bool irq_enabled; + bool vbus_enable; unsigned long features; }; @@ -370,20 +374,31 @@ static int twl6030_enable_irq(struct otg_transceiver *x) return 0; } -static int twl6030_set_vbus(struct otg_transceiver *x, bool enabled) +static void otg_set_vbus_work(struct work_struct *data) { - struct twl6030_usb *twl = xceiv_to_twl(x); + struct twl6030_usb *twl = container_of(data, struct twl6030_usb, + set_vbus_work); /* * Start driving VBUS. Set OPA_MODE bit in CHARGERUSB_CTRL1 * register. This enables boost mode. */ - if (enabled) + + if (twl->vbus_enable) twl6030_writeb(twl, TWL_MODULE_MAIN_CHARGE , 0x40, - CHARGERUSB_CTRL1); - else + CHARGERUSB_CTRL1); + else twl6030_writeb(twl, TWL_MODULE_MAIN_CHARGE , 0x00, - CHARGERUSB_CTRL1); + CHARGERUSB_CTRL1); +} + +static int twl6030_set_vbus(struct otg_transceiver *x, bool enabled) +{ + struct twl6030_usb *twl = xceiv_to_twl(x); + + twl->vbus_enable = enabled; + schedule_work(&twl->set_vbus_work); + return 0; } @@ -444,6 +459,8 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev) ATOMIC_INIT_NOTIFIER_HEAD(&twl->otg.notifier); + INIT_WORK(&twl->set_vbus_work, otg_set_vbus_work); + twl->irq_enabled = true; status = request_threaded_irq(twl->irq1, NULL, twl6030_usbotg_irq, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, @@ -494,6 +511,7 @@ static int __exit twl6030_usb_remove(struct platform_device *pdev) regulator_put(twl->usb3v3); pdata->phy_exit(twl->dev); device_remove_file(twl->dev, &dev_attr_vbus); + cancel_work_sync(&twl->set_vbus_work); kfree(twl); return 0; |