Re: [PATCH v7 4/5] xhci: mediatek: support MTK xHCI host controller

From: Mathias Nyman
Date: Tue Sep 08 2015 - 06:41:15 EST


Hi

On 08.09.2015 09:18, Chunfeng Yun wrote:
There some vendor quirks for MTK xhci host controller:
1. It defines some extra SW scheduling parameters for HW
to minimize the scheduling effort for synchronous and
interrupt endpoints. The parameters are put into reseved
DWs of slot context and endpoint context.
2. Its IMODI unit for Interrupter Moderation register is
8 times as much as that defined in xHCI spec.
3. Its TDS in Normal TRB defines a number of packets that
remains to be transferred for a TD after processing all
Max packets in all previous TRBs.


I just rewrote and unified the the xhci TD remainder functions,
now we got only one xhci_td_remainder() function which should
be more suitable for quirks.

You can add the quirk directly to it, no need to duplicate the
whole function.

-Mathias

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