[OpenWrt-Devel] [PATCH] ath79: ar7100: remove IRQ code from PCI driver

[Dmitry Tunin]

чт, 23 авг. 2018 г. в 6:36, Chuanhong Guo <gch981213 at gmail.com>:
>
> Dmitry Tunin <hanipouspilot at gmail.com> 于2018年8月23日周四 上午1:24写道：
> >
> > I looked into the specs and now I see that the
> > AR71XX_RESET_REG_MISC_INT_STATUS is read-only on ar7100, so we need to
> > change the compatible
> > to "qca,ar7100-misc-intc" and also change it for the "real" misc
> > controller. Writing to RO register makes no sense at all.
> Please be aware that the access mode is *RO/RWC*, meaning *Read/Write to Clear*.

I noticed that, and it is implemented, and only some bits are RWC.
It makes no sense to have a separate ack done this way. It slow things down.

And we already tested it both ways. It works either way, but one way
is faster than another.

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