From be30fc4b650acb85549fd0a9c42fe042366de009 Mon Sep 17 00:00:00 2001 From: "Aguilar Pena, Leed" Date: Fri, 20 Nov 2009 11:32:53 -0600 Subject: [PATCH] USB: twl4030: Enable USB regulators before enabling USB charging For TWL family of power management ICs, USB charging works only when USB regulators are in enabled state: 3v1, 1v5, 1v8 On a USB cable attach, twl4030_phy_resume(twl) function enables the regulators. Enable USB charging, only after all regulators are enabled. Its observed that enabling USB charging before regulators are enabled, causes USB charging to fail. Tested on: Zoom2: omap3430: ES3.1 + TWL5030 Needs T2-MADC and T2-BCI drivers which are still not upstreamed. Signed-off-by: Moiz Sonasath Signed-off-by: Leed Aguilar Acked-by: Vikram Pandita Acked-by: Anand Gadiyar Acked-by: Nishanth Menon Acked-by: Felipe Balbi Signed-off-by: Greg Kroah-Hartman --- drivers/usb/otg/twl4030-usb.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c index 9e3e7a5c258b..bd9883f41e63 100644 --- a/drivers/usb/otg/twl4030-usb.c +++ b/drivers/usb/otg/twl4030-usb.c @@ -598,12 +598,12 @@ static irqreturn_t twl4030_usb_irq(int irq, void *_twl) * USB_LINK_VBUS state. musb_hdrc won't care until it * starts to handle softconnect right. */ - twl4030charger_usb_en(status == USB_LINK_VBUS); - if (status == USB_LINK_NONE) twl4030_phy_suspend(twl, 0); else twl4030_phy_resume(twl); + + twl4030charger_usb_en(status == USB_LINK_VBUS); } sysfs_notify(&twl->dev->kobj, NULL, "vbus"); -- 2.39.5