[linux-sunxi] [PATCH 7/7] ARM: dts: sun7i: Enable cap-sdio-irq for bananapro sdio wifi

Maxime Ripard maxime.ripard at free-electrons.com
Sun Mar 8 10:26:38 PDT 2015

On Sun, Mar 08, 2015 at 12:27:53PM +0100, Hans de Goede wrote:
> Hi,
> On 08-03-15 03:42, Chen-Yu Tsai wrote:
> >On Sun, Mar 8, 2015 at 3:01 AM, Hans de Goede <hdegoede at redhat.com> wrote:
> >>The sdio wifi on the Banana Pro does not appear to have an oob irq hooked
> >>up, so enable sdio-irq support to avoid unnecessary polling.
> >
> >I wonder if this is stable enough to put back into the mmc driver, i.e.
> >declare the capability in the driver itself? IIRC at one point it did.
> That is a good question, I believe strongly that the sdio wifi issues we've
> been seeing which were the reason to disable cap-sdio-irq in the driver are
> actually unrelated to the irq delivery mechanism. So IMHO yes we can just enable
> this for all devices in the driver, and yes that would be a better solution.
> Maxime, if I send a patch to enable cal-sdio-irq at the driver level ( as it
> really is a hardware feature not a board feature), will you ack it ?

You know a lot more than I do on this, so I fully trust you. If you
feel like it's the best solution, go ahead.


Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
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