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| author | Aguilar Pena, Leed <leed.aguilar@ti.com> | 2009-11-20 11:32:53 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-12-11 11:55:25 -0800 |
| commit | be30fc4b650acb85549fd0a9c42fe042366de009 (patch) | |
| tree | e6730cb87c9044950404b5092b999776639ad2bc /drivers/usb | |
| parent | ec412b92dbe3ea839716853eea058d1bcc5e6ca4 (diff) | |
| download | linux-3.10-be30fc4b650acb85549fd0a9c42fe042366de009.tar.gz linux-3.10-be30fc4b650acb85549fd0a9c42fe042366de009.tar.bz2 linux-3.10-be30fc4b650acb85549fd0a9c42fe042366de009.zip | |
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>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/otg/twl4030-usb.c | 4 |
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"); |