From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qv1-f44.google.com (mail-qv1-f44.google.com [209.85.219.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A21F423EAA0 for ; Tue, 30 Jun 2026 13:30:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.44 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782826219; cv=none; b=jpqP5y6m1X1BGlYuY371NdZ0iX27WfzLtJ3K1sWCFCzWQY6TKvlwlTOEfywSEO1t6d+bx6vGHapXlOFg1azcWtYxCEuPGgs1trcO0hXh7RtThFliHOIp+oQJCiN87yVVuroSfzGvkpjk6TbeZOOiMAm2eBDYVa1+8xeNTqPh+cc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1782826219; c=relaxed/simple; bh=se8oO18KwTGJI+h1AL7a07PDyLW5Lj3zt4kqe00qAWA=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=d9KqyakZzEZdTFTIcDaqqis/bgC20hr0OmBYrlHB1SCWdttwVn7dC9+Uxe1/Rxt03GFWm0hoKZ8kg41tb19X0FqlSHSeet5ts8Fkxk9CDaunUiwYzfhsngZZQjcyQaCx9Ciz1cpxlR0oedUF0S66A4uNqA/+lvWg98YgYvBOUL8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=PZZ4wZI4; arc=none smtp.client-ip=209.85.219.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="PZZ4wZI4" Received: by mail-qv1-f44.google.com with SMTP id 6a1803df08f44-8e9c9d63815so28246236d6.2 for ; Tue, 30 Jun 2026 06:30:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1782826217; x=1783431017; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=UDoAFc8XKizPW/kSqNJO42Z0ejdb4d/GRE8OyCY0WHU=; b=PZZ4wZI4qKGtR5TIMw5s/uRJMwYpT3Vw5qz4HLCUmrxEMONwqUw6T6KbZvmyR/z36K NA7FjvzIhob7Db2nq1D5LI6WaZ3L1Fqtk/d9bA2lDsobYj4xC2RiD+4va3zTGrQR+eve 0BlBmvvibuT3lUsoXxsPPVKlbWCSqzuJPGm7+VBl28UjYjK6+71RRIeZbAAc2brpgN7H Dd0Zx8QmONFHMzD9KhLVKnJz2DiaiC9lPf652LrGNnzMJHoicY/J1vz9MnGnMmWm5ktF blU59yDM/kSjkLsg2KEQld7fa5Hb4vJd4kZj+nYN0JhH2qUrI0QAG0YeCrWkXo7uMO7y YfsQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1782826217; x=1783431017; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=UDoAFc8XKizPW/kSqNJO42Z0ejdb4d/GRE8OyCY0WHU=; b=LASrRA11/LEQYjYo4J9rZTHCoe8KWaaa/fAbVEZy1NvjQ7EhKNBKBbtkzlChcTkyAZ xuOzYwrfhpUlL5Fb+UxZdzn94SsiW1REAWC7J+DdjeZS42gOZ16+nxv/hG5sjYFsY8YX QUPhVQFiOCSZWw1+IL6mem/Feah1W6nP17f6SlUfICa16BGLM9a8VKpoEUHMqwpX9FCy oiBarc7j06SUrprGmYSmRajG5qttzfqJ5ktoNM1qTO5PYL0Rfzurftnwt8RwWU1/2Q4x uGBu7dPKE0gjUw0DbZNIfAh/qD+AEwPbw1aj6TksTDzr1BQyrxabqeqvqnr0H2KCYu5A 7Uqw== X-Forwarded-Encrypted: i=1; AHgh+Ro86E6Fz80CSy5anP4KNnedHo8MghFAHl0NmHFy8iTqgfElmUKiq920SWNtkz5gMUZ36kPmqePSPbfo@vger.kernel.org X-Gm-Message-State: AOJu0Yx+qImU92wTbVZj3K6JuX14C7+5p2nuwPlhENF74jNiKsixZQzF y9DgkEyY25TgvXKMCubBh4N3OntMSTWGUFWNh79IXIChLP0LcacgP4GK X-Gm-Gg: AfdE7cluhgVqT2D4L7FvFvBV0TyCjiZtM31BY7BzBy/0sIx8bRtl6kb96KEvE5SR6Eu AF5XFiRWAv5oOGcRv5hDxfU5KaJdlRxkr2FGT11foeweppWrzyU6q8iI0qDaMlGzznEGzTUE0EG Puv3syveHaiCKPZ6JNFOtE9Z4LPY2/6kBaTcYW7mYR9E5bj0857n7aa5MBWzfw8q1ECNYktMAZQ wzMLurut+6tyR+YZWaQqheF4B7jFKYfY2edxTYAdOSJVPBSvcBM4TJ/Do9+mFx83RnBej9ojwrb Lzl8VOhQ2C8SDGcIAhgKJoL/JeBGlPAs7siL3rl3setC2E8xTyzSDyyFd5wSrCi8oJIcCfgaEl2 xEMtAi+s3OYovw4PKuAN8r1+ge3i333jlCw5y3/wzfYQlFWMocFXCT+KtTy3YyLKTcdpRiSRtce ZiaqPyEMO+vka9tIxj3G9sh7d8fUCA2el3Zdr343SOosyYlA== X-Received: by 2002:a05:6214:8082:b0:8f0:ead1:a00c with SMTP id 6a1803df08f44-8f2d25b4bc8mr7948476d6.55.1782826216155; Tue, 30 Jun 2026 06:30:16 -0700 (PDT) Received: from dev.lan (c-75-67-38-46.hsd1.ma.comcast.net. [75.67.38.46]) by smtp.googlemail.com with ESMTPSA id 6a1803df08f44-8f1a7b26b2csm23003536d6.45.2026.06.30.06.30.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jun 2026 06:30:15 -0700 (PDT) From: Andrew LaMarche To: Johannes Berg , Jeff Johnson , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: linux-wireless@vger.kernel.org, devicetree@vger.kernel.org, ath12k@lists.infradead.org, linux-kernel@vger.kernel.org, Andrew LaMarche , Ernest Van Hoecke Subject: [PATCH v2 1/2] wifi: ath12k: support calibration-variant from device tree Date: Tue, 30 Jun 2026 13:30:00 +0000 Message-ID: <20260630133001.1426824-1-andrewjlamarche@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit ath10k and ath11k support reading calibration variants from the device tree to locate the correct Board Description File (BDF). The ath12k-wsi binding already describes using qcom,calibration-variant but it is not implemented in the driver. Many ath12k designs expose all the radios under a single phy, each of which typically require a separate BDF. Without this, the radios may not come up or will not be calibrated correctly. Fix this by parsing the device tree for the generation-agnostic qcom,calibration-variant. This allows the driver to properly select, read and apply the correct BDF. Signed-off-by: Andrew LaMarche --- Changes in v2: - Drop ath12k-specific binding qcom,ath12k-calibration-variant in favor of generation agnostic qcom,calibration-variant. - Link to v1: https://lore.kernel.org/all/20260131003222.2011259-1-andrewjlamarche@gmail.com --- drivers/net/wireless/ath/ath12k/core.c | 22 ++++++++++++++++++++++ drivers/net/wireless/ath/ath12k/qmi.c | 4 ++++ 2 files changed, 26 insertions(+) diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c index 742d4fd1b598..52c28864c63c 100644 --- a/drivers/net/wireless/ath/ath12k/core.c +++ b/drivers/net/wireless/ath/ath12k/core.c @@ -812,6 +812,28 @@ int ath12k_core_check_smbios(struct ath12k_base *ab) return 0; } +int ath12k_core_check_dt(struct ath12k_base *ab) +{ + size_t max_len = sizeof(ab->qmi.target.bdf_ext); + const char *variant = NULL; + struct device_node *node; + + node = ab->dev->of_node; + if (!node) + return -ENOENT; + + of_property_read_string(node, "qcom,calibration-variant", + &variant); + if (!variant) + return -ENODATA; + + if (strscpy(ab->qmi.target.bdf_ext, variant, max_len) < 0) + ath12k_dbg(ab, ATH12K_DBG_BOOT, + "bdf variant string is longer than the buffer can accommodate (variant: %s)\n", variant); + + return 0; +} + static int ath12k_core_soc_create(struct ath12k_base *ab) { int ret; diff --git a/drivers/net/wireless/ath/ath12k/qmi.c b/drivers/net/wireless/ath/ath12k/qmi.c index fd762b5d7bb5..3cf39ae06fd3 100644 --- a/drivers/net/wireless/ath/ath12k/qmi.c +++ b/drivers/net/wireless/ath/ath12k/qmi.c @@ -2945,6 +2945,10 @@ int ath12k_qmi_request_target_cap(struct ath12k_base *ab) if (r) ath12k_dbg(ab, ATH12K_DBG_QMI, "SMBIOS bdf variant name not set.\n"); + r = ath12k_core_check_dt(ab); + if (r) + ath12k_dbg(ab, ATH12K_DBG_QMI, "DT bdf variant name not set.\n"); + r = ath12k_acpi_start(ab); if (r) /* ACPI is optional so continue in case of an error */ -- 2.43.0