From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kalle Valo Subject: Re: [PATCH 1/3] brcmfmac: re-enable command decode in sdio_aos for BRCM 4354 Date: Tue, 28 May 2019 12:18:33 +0000 (UTC) Message-ID: <20190528121833.B45F06087F@smtp.codeaurora.org> References: <20190517225420.176893-2-dianders@chromium.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20190517225420.176893-2-dianders@chromium.org> Sender: linux-kernel-owner@vger.kernel.org Cc: Ulf Hansson , Adrian Hunter , Arend van Spriel , linux-rockchip@lists.infradead.org, Double Lo , briannorris@chromium.org, Madhan Mohan R , mka@chromium.org, Wright Feng , Chi-Hsien Lin , Douglas Anderson , brcm80211-dev-list.pdl@broadcom.com, Franky Lin , netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Madhan Mohan R , Hante Meuleman , Naveen Gupta , brcm80211-dev-list@cypress.com, YueHaibing List-Id: linux-rockchip.vger.kernel.org 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. ...so > 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 -- https://patchwork.kernel.org/patch/10948785/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches