From patchwork Mon Nov 23 10:28:49 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Pundir X-Patchwork-Id: 332004 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 10A16C63777 for ; Mon, 23 Nov 2020 10:29:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A06152074B for ; Mon, 23 Nov 2020 10:29:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="Ddt6tz3j" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728585AbgKWK24 (ORCPT ); Mon, 23 Nov 2020 05:28:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728203AbgKWK24 (ORCPT ); Mon, 23 Nov 2020 05:28:56 -0500 Received: from mail-pl1-x631.google.com (mail-pl1-x631.google.com [IPv6:2607:f8b0:4864:20::631]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 38D7DC061A4D for ; Mon, 23 Nov 2020 02:28:56 -0800 (PST) Received: by mail-pl1-x631.google.com with SMTP id t18so8652858plo.0 for ; Mon, 23 Nov 2020 02:28:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id; bh=O0ThdxcJNO6zV2BphVWbiZgpVdrlhVR1MlXKPXk6EbI=; b=Ddt6tz3jFBvHqbvtkEjGa7L62ThxISp2m8mvGVC+V1ccsa8/1Ot5o77bK78xEnPc0J MH+t7qj5sfeU+eSLEx/bduYC1u6HCIpk1dzUPdVsFVLBc9GHQbjj6XWxYZNYEBYb8rPB Pn8qhkZviZe2uOs3RGXTL0Qn15Uj/YBzZyn6etVgszZjSwAelMmM5Y9cPXeWQLynyXgo mPeAQ/PyvMXJoMBd88T/Pd5Luhyg75lWegpDVhZuorfXkssRLWqEoYvkE0riB1N9K31U VNJuwlKXFyjWMKcvzzc5dscMTaq2nbpZeZEZAwjz+pQT+C8Gl/p1s528maryBgipn02N p4eA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=O0ThdxcJNO6zV2BphVWbiZgpVdrlhVR1MlXKPXk6EbI=; b=CdV73Co2PCijEeVAqCeEho0wMWI1pH7fv9j4RXbnctwekCW1Nck9JARkTzl9heyQV+ EA3kuCdPq2lWrSF2IMNZhoraZDhqZt8lVhKfpzm3seIpRJNT5QLWgl5BxRKPsKCVgrxy 9pFSSm29jB4qDYuMYhADIRj1Rcqn16mnC4Rat6kOTauVg/hZXzgLbCUkKdl/0Yfy0UYi 5e4jgJgOaodx6jI3DMVz4BDyB+Xb6N/oL/zhhCi4ecqzE5C+G6dDoOSeqgtcCvZgC7ho oBnk1OTU6Sml4N1/LnxF00JWtoaGuzIvd54KHphQdyVf4/AFKpPeJZkLdqZh4O7ggJqH x7dw== X-Gm-Message-State: AOAM532RJYBn9lYHuiZUQs/h62hEFK5Ci0sAY0EIGu+J/EJbBdJmgPaT GRYGwKEp3+1wQLf0HtevFPH2dA== X-Google-Smtp-Source: ABdhPJx5Okx2LQszu8quy1RjI/nmR2bxDLBqR3NRA4lVEd2Xmc3JlWdZObGlJnsZ/N141rt3QbbTLw== X-Received: by 2002:a17:902:8ec4:b029:d7:eb0d:84c0 with SMTP id x4-20020a1709028ec4b02900d7eb0d84c0mr22751917plo.23.1606127335664; Mon, 23 Nov 2020 02:28:55 -0800 (PST) Received: from localhost.localdomain ([49.207.198.226]) by smtp.gmail.com with ESMTPSA id s18sm11907655pfc.5.2020.11.23.02.28.51 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Mon, 23 Nov 2020 02:28:55 -0800 (PST) From: Amit Pundir To: Kalle Valo , David S Miller , Jakub Kicinski , Bjorn Andersson , Jeffrey Hugo Cc: John Stultz , Sumit Semwal , Konrad Dybcio , Joel S , ath10k@lists.infradead.org, linux-wireless@vger.kernel.org, netdev@vger.kernel.org, phone-devel@vger.kernel.org, lkml Subject: [PATCH v2] ath10k: qmi: Skip host capability request for Xiaomi Poco F1 Date: Mon, 23 Nov 2020 15:58:49 +0530 Message-Id: <1606127329-6942-1-git-send-email-amit.pundir@linaro.org> X-Mailer: git-send-email 2.7.4 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Workaround to get WiFi working on Xiaomi Poco F1 (sdm845) phone. We get a non-fatal QMI_ERR_MALFORMED_MSG_V01 error message in ath10k_qmi_host_cap_send_sync(), but we can still bring up WiFi services successfully on AOSP if we ignore it. We suspect either the host cap is not implemented or there may be firmware specific issues. Firmware version is QC_IMAGE_VERSION_STRING=WLAN.HL.2.0.c3-00257-QCAHLSWMTPLZ-1 qcom,snoc-host-cap-8bit-quirk didn't help. If I use this quirk, then the host capability request does get accepted, but we run into fatal "msa info req rejected" error and WiFi interface doesn't come up. Attempts are being made to debug the failure reasons but no luck so far. Hence this device specific workaround instead of checking for QMI_ERR_MALFORMED_MSG_V01 error message. Tried ath10k/WCN3990/hw1.0/wlanmdsp.mbn from the upstream linux-firmware project but it didn't help and neither did building board-2.bin file from stock bdwlan* files. This workaround will be removed once we have a viable fix. Thanks to postmarketOS guys for catching this. Signed-off-by: Amit Pundir --- We dropped this workaround last time in the favor of a generic dts quirk to skip host cap check. But that is under under discussion for a while now, https://lkml.org/lkml/2020/9/25/1119, so resending this short term workaround for the time being. v2: ath10k-check complained about a too long line last time, so moved the comment to a new line. drivers/net/wireless/ath/ath10k/qmi.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath10k/qmi.c b/drivers/net/wireless/ath/ath10k/qmi.c index ae6b1f402adf..1c58b0ff1d29 100644 --- a/drivers/net/wireless/ath/ath10k/qmi.c +++ b/drivers/net/wireless/ath/ath10k/qmi.c @@ -653,7 +653,9 @@ static int ath10k_qmi_host_cap_send_sync(struct ath10k_qmi *qmi) /* older FW didn't support this request, which is not fatal */ if (resp.resp.result != QMI_RESULT_SUCCESS_V01 && - resp.resp.error != QMI_ERR_NOT_SUPPORTED_V01) { + resp.resp.error != QMI_ERR_NOT_SUPPORTED_V01 && + /* Xiaomi Poco F1 workaround */ + !of_machine_is_compatible("xiaomi,beryllium")) { ath10k_err(ar, "host capability request rejected: %d\n", resp.resp.error); ret = -EINVAL; goto out;