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SubjectRe: [PATCH 0/4] add xhci hooks for USB offload
On Tue, Jan 19, 2021 at 06:10:40PM +0800, Howard Yen wrote:
> To let the xhci driver support USB offload, add hooks for vendor to have
> customized behavior for the initialization, memory allocation, irq work, and
> device context synchronization. Detail is in each patch commit message.
>
> Howard Yen (4):
> usb: host: add xhci hooks for USB offload
> usb: host: export symbols for xhci hooks usage
> usb: xhci-plat: add xhci_plat_priv_overwrite
> dt-bindings: usb: usb-xhci: add USB offload support
>
> .../devicetree/bindings/usb/usb-xhci.txt | 1 +
> drivers/usb/host/xhci-hub.c | 5 +
> drivers/usb/host/xhci-mem.c | 99 ++++++++++++++++---
> drivers/usb/host/xhci-plat.c | 45 ++++++++-
> drivers/usb/host/xhci-plat.h | 9 ++
> drivers/usb/host/xhci-ring.c | 19 +++-
> drivers/usb/host/xhci.c | 89 +++++++++++++++++
> drivers/usb/host/xhci.h | 38 +++++++
> 8 files changed, 289 insertions(+), 16 deletions(-)

Thanks so much for posting this.

A bit of background for the lists. I helped review previous versions of
this patchset from Howard as he worked to convert the hacks from a
previous vendor into something that would be semi-sane. It would be
great if we can take the previously-submitted Samsung usb-audio hooks
(as published in their kernel sources for their last-year phones) and
get it into something mergable with this scheme as well, as this is the
"correct" way to do what they were wanting to do.

Although I know that is outside of the work you probably have time for,
maybe I will work on that over the next few weeks...

thanks,

greg k-h

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