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[79.139.233.37]) by smtp.googlemail.com with ESMTPSA id m16sm54962ljb.47.2020.01.07.08.23.32 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 07 Jan 2020 08:23:33 -0800 (PST) Subject: Re: [PATCH] brcmfmac: sdio: Fix OOB interrupt initialization on brcm43362 To: Jean-Philippe Brucker Cc: Arend Van Spriel , linux-wireless@vger.kernel.org, brcm80211-dev-list.pdl@broadcom.com, brcm80211-dev-list@cypress.com, netdev@vger.kernel.org, hdegoede@redhat.com, franky.lin@broadcom.com, hante.meuleman@broadcom.com, chi-hsien.lin@cypress.com, wright.feng@cypress.com, kvalo@codeaurora.org, davem@davemloft.net References: <20191226092033.12600-1-jean-philippe@linaro.org> <16f419a7070.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> <141f055a-cd1d-66cb-7052-007cda629d3a@gmail.com> <20200106191919.GA826263@myrica> <20200107072354.GA832497@myrica> From: Dmitry Osipenko Message-ID: <34dbd037-0a40-bf5f-4988-6b821811ffcd@gmail.com> Date: Tue, 7 Jan 2020 19:23:32 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.3.0 MIME-Version: 1.0 In-Reply-To: <20200107072354.GA832497@myrica> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org 07.01.2020 10:23, Jean-Philippe Brucker пишет: > On Tue, Jan 07, 2020 at 02:15:18AM +0300, Dmitry Osipenko wrote: >> 06.01.2020 22:19, Jean-Philippe Brucker пишет: >>> Hi Dmitry, >>> >>> On Thu, Dec 26, 2019 at 05:37:58PM +0300, Dmitry Osipenko wrote: >>>> I haven't seen any driver probe failures due to OOB on NVIDIA Tegra, >>>> only suspend-resume was problematic due to the unbalanced OOB >>>> interrupt-wake enabling. >>>> >>>> But maybe checking whether OOB interrupt-wake works by invoking >>>> enable_irq_wake() during brcmf_sdiod_intr_register() causes trouble for >>>> the cubietruck board. >>>> >>>> @Jean-Philippe, could you please try this change (on top of recent >>>> linux-next): >>> >>> Sorry for the delay, linux-next doesn't boot for me at the moment and I >>> have little time to investigate why, so I might retry closer to the merge >>> window. >>> >>> However, isn't the interrupt-wake issue independent from the problem >>> (introduced in v4.17) that my patch fixes? I applied "brcmfmac: Keep OOB >>> wake-interrupt disabled when it shouldn't be enabled" on v5.5-rc5 and it >>> doesn't seem to cause a regression, but the wifi only works if I apply my >>> patch as well. >>> >>> Thanks, >>> Jean >>> >>>> >>>> diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c >>>> b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c >>>> index b684a5b6d904..80d7106b10a9 100644 >>>> --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c >>>> +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/bcmsdh.c >>>> @@ -115,13 +115,6 @@ int brcmf_sdiod_intr_register(struct brcmf_sdio_dev >>>> *sdiodev) >>>> } >>>> sdiodev->oob_irq_requested = true; >>>> >>>> - ret = enable_irq_wake(pdata->oob_irq_nr); >>>> - if (ret != 0) { >>>> - brcmf_err("enable_irq_wake failed %d\n", ret); >>>> - return ret; >>>> - } >>>> - disable_irq_wake(pdata->oob_irq_nr); >>>> - >>>> sdio_claim_host(sdiodev->func1); >>>> >>>> if (sdiodev->bus_if->chip == BRCM_CC_43362_CHIP_ID) { >> >> Hello Jean, >> >> Could you please clarify whether you applied [1] and then the above >> snippet on top of it or you only applied [1] without the snippet? > > I applied [1] without the snippet > > Thanks, > Jean > >> >> [1] brcmfmac: Keep OOB wake-interrupt disabled when it shouldn't be enabled Will you be able to test *with* the snippet? I guess chances that it will make any difference are not high, nevertheless will be good to know for sure.