Re: [PATCH v2 RESEND] drivers/usb: Skip auto handoff for TI and RENESAS usb controllers

From: Mathias Nyman
Date: Mon Oct 24 2016 - 05:57:27 EST


On 22.10.2016 01:25, Babu Moger wrote:
Never seen XHCI auto handoff working on TI and RENESAS cards.
Eventually, we force handoff. This code forces the handoff
unconditionally. It saves 5 seconds boot time for each card.

Signed-off-by: Babu Moger <babu.moger@xxxxxxxxxx>

Do the Renesas and TI controllers still advertise the extended capability
for the handoff? (XHCI_EXT_CAPS_LEGACY)

Is this some known issue with these vendors controllers? Is there some documentation
about this, errata or anything?

Adding Yoshihiro Shimoda, he might know about the Renesas controller.

-Mathias