diff options
| -rw-r--r-- | drivers/usb/otg/twl6030-usb.c | 27 |
1 files changed, 12 insertions, 15 deletions
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c index 28f77010364..eca459126db 100644 --- a/drivers/usb/otg/twl6030-usb.c +++ b/drivers/usb/otg/twl6030-usb.c @@ -158,8 +158,6 @@ static int twl6030_phy_init(struct otg_transceiver *x) dev = twl->dev; pdata = dev->platform_data; - regulator_enable(twl->usb3v3); - hw_state = twl6030_readb(twl, TWL6030_MODULE_ID0, STS_HW_CONDITIONS); if (hw_state & STS_USB_ID) @@ -180,7 +178,6 @@ static void twl6030_phy_shutdown(struct otg_transceiver *x) dev = twl->dev; pdata = dev->platform_data; pdata->phy_power(twl->dev, 0, 0); - regulator_disable(twl->usb3v3); } static int twl6030_usb_ldo_init(struct twl6030_usb *twl) @@ -199,16 +196,6 @@ static int twl6030_usb_ldo_init(struct twl6030_usb *twl) if (IS_ERR(twl->usb3v3)) return -ENODEV; - regulator_enable(twl->usb3v3); - - /* Program the VUSB_CFG_TRANS for ACTIVE state. */ - twl6030_writeb(twl, TWL_MODULE_PM_RECEIVER, 0x3F, - VUSB_CFG_TRANS); - - /* Program the VUSB_CFG_STATE register to ON on all groups. */ - twl6030_writeb(twl, TWL_MODULE_PM_RECEIVER, 0xE1, - VUSB_CFG_STATE); - /* Program the USB_VBUS_CTRL_SET and set VBUS_ACT_COMP bit */ twl6030_writeb(twl, TWL_MODULE_USB, 0x4, USB_VBUS_CTRL_SET); @@ -261,16 +248,23 @@ static irqreturn_t twl6030_usb_irq(int irq, void *_twl) CONTROLLER_STAT1); if (!(hw_state & STS_USB_ID)) { if (vbus_state & VBUS_DET) { + regulator_enable(twl->usb3v3); + twl->asleep = 1; status = USB_EVENT_VBUS; twl->otg.default_a = false; twl->otg.state = OTG_STATE_B_IDLE; + twl->linkstat = status; + blocking_notifier_call_chain(&twl->otg.notifier, + status, twl->otg.gadget); } else { status = USB_EVENT_NONE; - } - if (status >= 0) { twl->linkstat = status; blocking_notifier_call_chain(&twl->otg.notifier, status, twl->otg.gadget); + if (twl->asleep) { + regulator_disable(twl->usb3v3); + twl->asleep = 0; + } } } sysfs_notify(&twl->dev->kobj, NULL, "vbus"); @@ -288,6 +282,8 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl) if (hw_state & STS_USB_ID) { + regulator_enable(twl->usb3v3); + twl->asleep = 1; twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_CLR, 0x1); twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_SET, 0x10); @@ -437,6 +433,7 @@ static int __devinit twl6030_usb_probe(struct platform_device *pdev) return status; } + twl->asleep = 0; pdata->phy_init(dev); twl6030_enable_irq(&twl->otg); dev_info(&pdev->dev, "Initialized TWL6030 USB module\n"); |