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| author | Moiz Sonasath <m-sonasath@ti.com> | 2011-10-18 11:25:17 -0500 |
|---|---|---|
| committer | Ziyann <jaraidaniel@gmail.com> | 2014-10-01 12:56:07 +0200 |
| commit | 81bf5bd6d6182e2df3bf81e2288fc6b8da021475 (patch) | |
| tree | 8ef48799bdc33f4291aae172bbe84644e1d36b63 /drivers/usb/otg | |
| parent | 4ddb6f3cccffe6e431ce8aa72e7b77baf666f0a3 (diff) | |
| download | kernel_samsung_tuna-81bf5bd6d6182e2df3bf81e2288fc6b8da021475.zip kernel_samsung_tuna-81bf5bd6d6182e2df3bf81e2288fc6b8da021475.tar.gz kernel_samsung_tuna-81bf5bd6d6182e2df3bf81e2288fc6b8da021475.tar.bz2 | |
USB: TWL: Ignore ID-GND interrupts for Peripheral-only mode
During the USB Back Voltage testing in Peripheral-only mode,
on Blaze boards it was observed that when you connect the usb
cable to the test fixture, it was generating spurious ID GND
interrupts and hence as the USB OTG SW stack works on cable-
based switching, it was causing the OTG controller to switch
its role of HOST and supply VBUS, causing the tests to fail.
With this patch we ignore any ID GND interrupts if we are
operating in PERIPHERAL-only mode.
Change-Id: I848a29c0c691e48ba10bf4b81870ec1d511a30ef
Signed-off-by: Moiz Sonasath <m-sonasath@ti.com>
Diffstat (limited to 'drivers/usb/otg')
| -rw-r--r-- | drivers/usb/otg/twl6030-usb.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c index 622bad7..b0e4025 100644 --- a/drivers/usb/otg/twl6030-usb.c +++ b/drivers/usb/otg/twl6030-usb.c @@ -334,6 +334,8 @@ vbus_notify: static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl) { + +#ifndef CONFIG_USB_MUSB_PERIPHERAL struct twl6030_usb *twl = _twl; int status = USB_EVENT_NONE; u8 hw_state; @@ -364,6 +366,7 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl) 0x1); } twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_LATCH_CLR, status); +#endif return IRQ_HANDLED; } |