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usb: musb: da8xx: Fix host mode suspend 

On da8xx, VBUS is not maintained during suspend when musb is in host mode.
On resume, all the connected devices will be disconnected and then will
be enumerated again.
This happens because MUSB_DEVCTL is cleared during suspend.

Use the quirk MUSB_PRESERVE_SESSION to preseve MUSB_DEVCTL during suspend.

Signed-off-by: Alexandre Bailon <abailon@baylibre.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alexandre Bailon 2017-02-01 21:30:20 -06:00 committed by Greg Kroah-Hartman
parent a926ed11e7
commit 486fc20ac8
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/musb/da8xx.c
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@ -457,7 +457,7 @@ static inline u8 get_vbus_power(struct device *dev)
}
static const struct musb_platform_ops da8xx_ops = {
.quirks = MUSB_INDEXED_EP,
.quirks = MUSB_INDEXED_EP | MUSB_PRESERVE_SESSION,
.init = da8xx_musb_init,
.exit = da8xx_musb_exit,