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

From: Arend Van Spriel
Date: Sun Feb 23 2020 - 06:30:46 EST

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


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:


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

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.


Please ignore this patch.

thank you,



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";


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