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usb: musb: core: honour initial transceiver state

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As the usb transceiver driver usually starts first, it should already
have default_a variable set according to ID pin state, so don't
override it. In case default_a was not changed by trasceiver, it will
default to 0 and this code will work as before.

Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Grazvydas Ignotas 2013-03-10 02:48:55 +02:00 committed by Felipe Balbi
parent 4261b8f353
commit e561511280
1 changed files with 7 additions and 3 deletions
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6
drivers/usb/musb/musb_core.c
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@ -1952,9 +1952,13 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
musb_write_ulpi_buscontrol(musb->mregs, busctl);
}
if (musb->xceiv->otg->default_a) {
MUSB_HST_MODE(musb);
musb->xceiv->state = OTG_STATE_A_IDLE;
} else {
MUSB_DEV_MODE(musb);
musb->xceiv->otg->default_a = 0;
musb->xceiv->state = OTG_STATE_B_IDLE;
}
status = musb_gadget_setup(musb);