From nobody Fri Dec 19 06:59:50 2025 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B174B1DD2C9; Sun, 24 Mar 2024 22:52:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711320728; cv=none; b=MpJ2GuoD7iFCPMlsTZyqKgRxYshXiLr//vwSsACtAuCC1PjSCnsLt+ISxQMpbY+DPxv3gYnuaL2IiC6nHpp9bN4Pnke6jOUXqKxzvDONf02tmaHX1O7Ly6tgI330l5dtqRr70o3YwNSJNTPogOHwWRMjP751dxrsLFuiBQxCO0g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711320728; c=relaxed/simple; bh=CP1TSSKoiKiCEQKLsdxI576zDse1KHJj9eW0u99lzW4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Q3pOhi3czuXZz7WgKsSDQ8yyv0BpYUG6jljWREsx6V2RU5P0jh20CoYnDlNP8b/4onWyvgflV5Y0kb6NXx0eC0iCsA2xUwiSFxqBOeTHET5kBp3ZJZCDpclEigxxfY5zdHfYDYQsQazxXS26THGBYak/9nHyx3d/7wYyfb5zM3U= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=AxUnvCpx; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="AxUnvCpx" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7FCC2C433F1; Sun, 24 Mar 2024 22:52:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711320727; bh=CP1TSSKoiKiCEQKLsdxI576zDse1KHJj9eW0u99lzW4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=AxUnvCpxXv7OvKgEXVRCmHRSAf9dMjFYOj1/8QYArmP8QR/04EP7kfswH4II/IpxU +O/CofX3JUF5mQPTf21l2N9im9fmHP9Yh/xFBeVIYwaaza7IUgmRdvouBgz1/LqqQH 8UU2uqDTIuNzLV9Ke4x3356+ZUJ3YCLIRC2eVUbFD/+zBZ5gOG9+R6RHy5V9Tk1M5x so5xKJ+gGyY8qh2uLK5ajoVZziRnrHjxBV6r6eLvQxUS8V0y48qf1+wJJMBAnTI/3R 28f7T+YY0PoFTFJdiXgFBUhKwHSEwAOj1GRfdfTNXSRAyAMC1wJTPTOWliSokhe/eO +DBOi+L2W3bIA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Quan Zhou , Ming Yen Hsieh , Felix Fietkau , Sasha Levin Subject: [PATCH 6.7 290/713] wifi: mt76: mt7925: add flow to avoid chip bt function fail Date: Sun, 24 Mar 2024 18:40:16 -0400 Message-ID: <20240324224720.1345309-291-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324224720.1345309-1-sashal@kernel.org> References: <20240324224720.1345309-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Quan Zhou [ Upstream commit 9300ae0cd9e8f2407b20e0e67ee3ea03dc8b06af ] A sub-process of Wifi L0.5 reset will make chip common partition enter low power, and have chance lead to Bluetooth host-to-chip command timeout, modify the software flow according to the chip's design to solve the problem. Fixes: c948b5da6bbe ("wifi: mt76: mt7925: add Mediatek Wi-Fi7 driver for mt= 7925 chips") Signed-off-by: Quan Zhou Signed-off-by: Ming Yen Hsieh Signed-off-by: Felix Fietkau Signed-off-by: Sasha Levin --- drivers/net/wireless/mediatek/mt76/mt7925/pci.c | 2 ++ drivers/net/wireless/mediatek/mt76/mt792x_regs.h | 3 +++ 2 files changed, 5 insertions(+) diff --git a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c b/drivers/net/= wireless/mediatek/mt76/mt7925/pci.c index 08ef75e24e1cf..c16d683e4891e 100644 --- a/drivers/net/wireless/mediatek/mt76/mt7925/pci.c +++ b/drivers/net/wireless/mediatek/mt76/mt7925/pci.c @@ -386,6 +386,8 @@ static int mt7925_pci_probe(struct pci_dev *pdev, =20 dev_info(mdev->dev, "ASIC revision: %04x\n", mdev->rev); =20 + mt76_rmw_field(dev, MT_HW_EMI_CTL, MT_HW_EMI_CTL_SLPPROT_EN, 1); + ret =3D mt792x_wfsys_reset(dev); if (ret) goto err_free_dev; diff --git a/drivers/net/wireless/mediatek/mt76/mt792x_regs.h b/drivers/net= /wireless/mediatek/mt76/mt792x_regs.h index a99af23e4b564..d7f9b24cd665f 100644 --- a/drivers/net/wireless/mediatek/mt76/mt792x_regs.h +++ b/drivers/net/wireless/mediatek/mt76/mt792x_regs.h @@ -389,6 +389,9 @@ #define MT_HW_CHIPID 0x70010200 #define MT_HW_REV 0x70010204 =20 +#define MT_HW_EMI_CTL 0x18011100 +#define MT_HW_EMI_CTL_SLPPROT_EN BIT(1) + #define MT_PCIE_MAC_BASE 0x10000 #define MT_PCIE_MAC(ofs) (MT_PCIE_MAC_BASE + (ofs)) #define MT_PCIE_MAC_INT_ENABLE MT_PCIE_MAC(0x188) --=20 2.43.0