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usb: phy: Check initial state for twl6030
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>
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aec373c1e5
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1 changed files with 15 additions and 2 deletions
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@ -97,6 +97,9 @@ struct twl6030_usb {
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struct regulator *usb3v3;
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/* used to check initial cable status after probe */
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struct delayed_work get_status_work;
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/* used to set vbus, in atomic path */
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struct work_struct set_vbus_work;
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@ -280,6 +283,15 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl)
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return IRQ_HANDLED;
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}
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static void twl6030_status_work(struct work_struct *work)
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{
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struct twl6030_usb *twl = container_of(work, struct twl6030_usb,
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get_status_work.work);
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twl6030_usb_irq(twl->irq2, twl);
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twl6030_usbotg_irq(twl->irq1, twl);
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}
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static int twl6030_enable_irq(struct twl6030_usb *twl)
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{
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twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_SET);
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@ -290,8 +302,6 @@ static int twl6030_enable_irq(struct twl6030_usb *twl)
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REG_INT_MSK_LINE_C);
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twl6030_interrupt_unmask(TWL6030_CHARGER_CTRL_INT_MASK,
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REG_INT_MSK_STS_C);
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twl6030_usb_irq(twl->irq2, twl);
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twl6030_usbotg_irq(twl->irq1, twl);
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return 0;
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}
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@ -377,6 +387,7 @@ static int twl6030_usb_probe(struct platform_device *pdev)
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dev_warn(&pdev->dev, "could not create sysfs file\n");
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INIT_WORK(&twl->set_vbus_work, otg_set_vbus_work);
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INIT_DELAYED_WORK(&twl->get_status_work, twl6030_status_work);
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status = request_threaded_irq(twl->irq1, NULL, twl6030_usbotg_irq,
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IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING | IRQF_ONESHOT,
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@ -401,6 +412,7 @@ static int twl6030_usb_probe(struct platform_device *pdev)
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twl->asleep = 0;
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twl6030_enable_irq(twl);
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schedule_delayed_work(&twl->get_status_work, HZ);
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dev_info(&pdev->dev, "Initialized TWL6030 USB module\n");
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return 0;
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@ -410,6 +422,7 @@ static int twl6030_usb_remove(struct platform_device *pdev)
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{
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struct twl6030_usb *twl = platform_get_drvdata(pdev);
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cancel_delayed_work(&twl->get_status_work);
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twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,
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REG_INT_MSK_LINE_C);
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twl6030_interrupt_mask(TWL6030_USBOTG_INT_MASK,
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