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authorAguilar Pena, Leed <leed.aguilar@ti.com>2009-11-20 11:32:53 -0600
committerGreg Kroah-Hartman <gregkh@suse.de>2009-12-11 11:55:25 -0800
commitbe30fc4b650acb85549fd0a9c42fe042366de009 (patch)
treee6730cb87c9044950404b5092b999776639ad2bc
parentec412b92dbe3ea839716853eea058d1bcc5e6ca4 (diff)
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 <m-sonasath@ti.com> Signed-off-by: Leed Aguilar <leed.aguilar@ti.com> Acked-by: Vikram Pandita <vikram.pandita@ti.com> Acked-by: Anand Gadiyar <gadiyar@ti.com> Acked-by: Nishanth Menon <nm@ti.com> Acked-by: Felipe Balbi <felipe.balbi@nokia.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
-rw-r--r--drivers/usb/otg/twl4030-usb.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index 9e3e7a5c258..bd9883f41e6 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");