From: Ajay Kumar Gupta <ajay.gupta@xxxxxx>
Fixes enumeration failures when a USB device attached to a LS hub is connected to OMAP EVM via HS hub. This is fixed by correctly programming hub address register in enqueue path.
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@xxxxxx>
---
drivers/usb/musb/musb_host.c | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 52ac02a..90d3733 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -1869,7 +1869,11 @@ static int musb_urb_enqueue(
/* set up tt info if needed */
if (urb->dev->tt) {
qh->h_port_reg = (u8) urb->dev->ttport;
- qh->h_addr_reg |= 0x80;
+ if (urb->dev->tt->hub)
+ qh->h_addr_reg =
+ (u8) urb->dev->tt->hub->devnum;
+ if (urb->dev->tt->multi)
+ qh->h_addr_reg |= 0x80;
}
}
}
--
1.5.6
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