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usb: phy: Check initial state for twl6030

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We need to check the state for the PHY with delayed_work
as otherwise MUSB will get confused and idles immediately.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tony Lindgren 2016-05-31 10:05:23 -05:00 committed by Greg Kroah-Hartman
parent aec373c1e5
commit b6a619a883
1 changed files with 15 additions and 2 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

17
drivers/usb/phy/phy-twl6030-usb.c
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@ -97,6 +97,9 @@ struct twl6030_usb {
struct regulator *usb3v3; struct regulator *usb3v3;
/* used to check initial cable status after probe */
struct delayed_work get_status_work;
/* used to set vbus, in atomic path */ /* used to set vbus, in atomic path */
struct work_struct set_vbus_work; struct work_struct set_vbus_work;
@ -280,6 +283,15 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
return IRQ_HANDLED; return IRQ_HANDLED;
} }
static void twl6030_status_work(struct work_struct *work)
{
struct twl6030_usb *twl = container_of(work, struct twl6030_usb,
get_status_work.work);
twl6030_usb_irq(twl->irq2, twl);
twl6030_usbotg_irq(twl->irq1, twl);
}
static int twl6030_enable_irq(struct twl6030_usb *twl) static int twl6030_enable_irq(struct twl6030_usb *twl)
{ {
twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_SET); twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_SET);
@ -290,8 +302,6 @@ static int twl6030_enable_irq(struct twl6030_usb *twl)
REG_INT_MSK_LINE_C); REG_INT_MSK_LINE_C);
twl6030_interrupt_unmask(TWL6030_CHARGER_CTRL_INT_MASK, twl6030_interrupt_unmask(TWL6030_CHARGER_CTRL_INT_MASK,
REG_INT_MSK_STS_C); REG_INT_MSK_STS_C);
twl6030_usb_irq(twl->irq2, twl);
twl6030_usbotg_irq(twl->irq1, twl);
return 0; return 0;
} }
@ -377,6 +387,7 @@ static int twl6030_usb_probe(struct platform_device *pdev)
dev_warn(&pdev->dev, "could not create sysfs file\n"); dev_warn(&pdev->dev, "could not create sysfs file\n");
INIT_WORK(&twl->set_vbus_work, otg_set_vbus_work); INIT_WORK(&twl->set_vbus_work, otg_set_vbus_work);
INIT_DELAYED_WORK(&twl->get_status_work, twl6030_status_work);
status = request_threaded_irq(twl->irq1, NULL, twl6030_usbotg_irq, status = request_threaded_irq(twl->irq1, NULL, twl6030_usbotg_irq,
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | IRQF_ONESHOT, IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | IRQF_ONESHOT,
@ -401,6 +412,7 @@ static int twl6030_usb_probe(struct platform_device *pdev)
twl->asleep = 0; twl->asleep = 0;
twl6030_enable_irq(twl); twl6030_enable_irq(twl);
schedule_delayed_work(&twl->get_status_work, HZ);
dev_info(&pdev->dev, "Initialized TWL6030 USB module\n"); dev_info(&pdev->dev, "Initialized TWL6030 USB module\n");
return 0; return 0;
@ -410,6 +422,7 @@ static int twl6030_usb_remove(struct platform_device *pdev)
{ {
struct twl6030_usb *twl = platform_get_drvdata(pdev); struct twl6030_usb *twl = platform_get_drvdata(pdev);
cancel_delayed_work(&twl->get_status_work);
twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK, twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,
REG_INT_MSK_LINE_C); REG_INT_MSK_LINE_C);
twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK, twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,