Re: [linux-sunxi] [PATCH 1/4] ARM: dts: sun8i-a83t-tbs-a711: OOB WiFi interrupt doesn't work

[Arend Van Spriel]

On February 23, 2020 11:55:25 AM OndÅej Jirman <megous@xxxxxxxxxx> wrote:

> Hello,
>
> On Sun, Feb 23, 2020 at 12:03:46PM +0800, Chen-Yu Tsai wrote:
> > On Sun, Feb 23, 2020 at 11:26 AM Chen-Yu Tsai <wens@xxxxxxxx> wrote:
> > > Hi,
> > >
> > >
> > > On Sun, Feb 23, 2020 at 6:32 AM Ondrej Jirman <megous@xxxxxxxxxx> wrote:
> > > > It just causes a constant rate of 5000 interrupts per second for both
> > > > GPIO and MMC, even if nothing is happening. Rely on in-band interrupts
> > > > instead.
> > > >
> > > > Fixes: 0e23372080def7bb ("arm: dts: sun8i: Add the TBS A711 tablet devicetree")
> > > > Signed-off-by: Ondrej Jirman <megous@xxxxxxxxxx>
> > >
> > > What WiFi chip/module does this use? It might be worth asking Broadcom
> > > people to help with this and fix the driver.
> >
> > Based on the comments in the device tree file, it uses an AP6210, which
> > is a BCM43362 inside for SDIO-based WiFi. There is a recent fix in 5.6-rc1
> > for this,
> >
> > 8c8e60fb86a9 brcmfmac: sdio: Fix OOB interrupt initialization on brcm43362
> >
> > which seems to fix things for me. Could you try it on your end?
>
> I can confirm that it works as you say (on linus/master). 5.5 still doesn't 
> have
> the patch, so it's broken there, which confused me I guess.

Hi Ondrej,

I have seen emails from GregKH including this patch in 5.5 stable so it 
will also land there eventually.

Regards,
Arend

> Please ignore this patch.
>
> thank you,
> Ondrej
>
> > ChenYu
> >
> >
> > > ChenYu
> > >
> > > > ---
> > > > arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts | 3 ---
> > > > 1 file changed, 3 deletions(-)
> > > >
> > > > diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts 
> > > > b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
> > > > index 2fd31a0a0b344..ee5ce3556b2ad 100644
> > > > --- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
> > > > +++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
> > > > @@ -214,9 +214,6 @@ &mmc1 {
> > > >    brcmf: wifi@1 {
> > > >            reg = <1>;
> > > >            compatible = "brcm,bcm4329-fmac";
> > > > -               interrupt-parent = <&r_pio>;
> > > > -               interrupts = <0 3 IRQ_TYPE_LEVEL_LOW>; /* PL3 WL_WAKE_UP */
> > > > -               interrupt-names = "host-wake";
> > > >    };
> > > > };
> > > >
> > > > --
> > > > 2.25.1
> > > >
> > > > --
> > > > You received this message because you are subscribed to the Google Groups 
> > > > "linux-sunxi" group.
> > > > To unsubscribe from this group and stop receiving emails from it, send an 
> > > > email to linux-sunxi+unsubscribe@xxxxxxxxxxxxxxxxx
> > > > To view this discussion on the web, visit 
> > > > https://groups.google.com/d/msgid/linux-sunxi/20200222223154.221632-2-megous%40megous.com.