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Date:   Tue, 28 May 2019 12:18:33 +0000 (UTC)
From:   Kalle Valo <>
To:     Douglas Anderson <>
Cc:     Ulf Hansson <>,
        Adrian Hunter <>,
        Arend van Spriel <>,,
        Double Lo <>,,
        Madhan Mohan R <>,,
        Wright Feng <>,
        Chi-Hsien Lin <>,
        Douglas Anderson <>,,
        Franky Lin <>,,,,
        Madhan Mohan R <>,
        Hante Meuleman <>,
        Naveen Gupta <>,, YueHaibing <>,
        "David S. Miller" <>
Subject: Re: [PATCH 1/3] brcmfmac: re-enable command decode in sdio_aos for
 BRCM 4354

Douglas Anderson <> wrote:

> In commit 29f6589140a1 ("brcmfmac: disable command decode in
> sdio_aos") we disabled something called "command decode in sdio_aos"
> for a whole bunch of Broadcom SDIO WiFi parts.
> After that patch landed I find that my kernel log on
> rk3288-veyron-minnie and rk3288-veyron-speedy is filled with:
>   brcmfmac: brcmf_sdio_bus_sleep: error while changing bus sleep state -110
> This seems to happen every time the Broadcom WiFi transitions out of
> sleep mode.  Reverting the part of the commit that affects the WiFi on
> my boards fixes the problem for me, so that's what this patch does.
> Note that, in general, the justification in the original commit seemed
> a little weak.  It looked like someone was testing on a SD card
> controller that would sometimes die if there were CRC errors on the
> bus.  This used to happen back in early days of dw_mmc (the controller
> on my boards), but we fixed it.  Disabling a feature on all boards
> just because one SD card controller is broken seems bad.
> instead of just this patch possibly the right thing to do is to fully
> revert the original commit.
> Fixes: 29f6589140a1 ("brcmfmac: disable command decode in sdio_aos")
> Signed-off-by: Douglas Anderson <>

I don't see patch 2 in patchwork and I assume discussion continues.
Please resend if/when I need to apply something.

2 patches set to Changes Requested.

10948785 [1/3] brcmfmac: re-enable command decode in sdio_aos for BRCM 4354
10948777 [3/3] brcmfmac: sdio: Disable auto-tuning around commands expected to fail


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