[REGRESSION 4.10] dw_mmc: failures on Rockchip rk3288 veyron boards

Brian Norris briannorris at chromium.org
Wed Mar 29 19:53:46 PDT 2017


Hi Eddie,

On Thu, Mar 30, 2017 at 10:18:59AM +0800, Eddie Cai wrote:
> I test on rk3288 firefly reload with 4.11-rc4. It work fine.

OK, thanks for checking.

> > On Thu, Mar 30, 2017 at 09:32:22AM +0800, Shawn Lin wrote:
> >> Hi Brian,
> >>
> >> On 2017/3/30 9:17, Brian Norris wrote:
> >> >Hi all,
> >> >
> >> >I haven't managed to get as far as a bugfix for this, but I've bisected
> >> >some issues seen on v4.10+ with a Chromebook of the Veyron family (Jaq,
> >> >in particular). v4.9 works fine.

[...]

By the way, Kevin (CC'd) says he noticed similiar Wifi issues on an
Exynos 5800 Peach chromebook, but not on an Exynos 5250 Snow chromebook.
I haven't picked these apart yet to see what the differences and
similarities are, but presumably it's not actually a Rockchip-specific
bug. Maybe related to the way power sequencing is plumbed for these, for
example?

Brian



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