From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 D7FAA3749F7; Wed, 23 Sep 2026 14:42:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790174535; cv=none; b=sDBkjNQJHC3YEDGUpdmr9UmBnITG0tiD9B6M6G4KGAi7fPUL80qx7WC+QRKrBx8kmNZAlg9HHxoYUtZxI4X77zMyT24E7CY5iIvQCSjlhB7X+eqM8B1QHainsosvG3CJbRppNtPLAlHIkahXsWcuR6wIxTH/p9cGZ/u2sBJjy3s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790174535; c=relaxed/simple; bh=JulqoqHiOOMkMLlzJg0M0yIenrrP5c42yYUcwDn+kxM=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=cNmCKPjdB7XNNT7v/GLgCLBYZ6fcGiaQvN2hNIQLesyhp7gWid9VZli+rT3+4XGo1zyLhSAeNFiOAfy0LmN8FsbGzjO7O6DMezsXwg9kbMglQhzTDwCjB/el4pZNLLZODFtdmJTwjr352v1sMuiOGA2xgysyS0QgUXrAY+ezcGg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=N8ReNArA; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="N8ReNArA" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E88CB1F00893; Wed, 23 Sep 2026 14:42:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1790174533; bh=t4VnUwB4P236VB/AqveDvn5jXGpkSMREFQwUyeg0tHA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=N8ReNArAnEajx3hM7dNzGwiDdlEqumaxC7W6DTblp9MDu/PucdpDgdMXAGKq/5NgW LJL3rRrI+Zx+DCfWkTvgDa28dWmTfZ0L1hiFzomy7ZhST5/VlIZCxrmodnPgUwn5DQ PclgBE+GFJy1u/NDEefidx5QbLETlBrvZq59dJIA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Bartosz Golaszewski , Dmitry Baryshkov , Luiz Augusto von Dentz , Sasha Levin Subject: [PATCH 6.18 146/398] Bluetooth: qca: enable pwrseq support for WCN39xx devices Date: Wed, 23 Sep 2026 16:03:40 +0200 Message-ID: <20260923140647.215856743@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260923140643.441954610@linuxfoundation.org> References: <20260923140643.441954610@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dmitry Baryshkov [ Upstream commit 9f168e4de5fd43766f6d49b393f445be805c1e05 ] The WCN39xx family of WiFi/BT chips incorporates a simple PMU, spreading voltages over internal rails. Implement support for using powersequencer for this family of QCA devices in addition to using regulators. Reviewed-by: Bartosz Golaszewski Signed-off-by: Dmitry Baryshkov Signed-off-by: Luiz Augusto von Dentz Stable-dep-of: 4e93c65f8782 ("Bluetooth: hci_qca: Do not write to the serial port after it is closed") Signed-off-by: Sasha Levin --- drivers/bluetooth/hci_qca.c | 26 ++++++++++++++++++-------- 1 file changed, 18 insertions(+), 8 deletions(-) diff --git a/drivers/bluetooth/hci_qca.c b/drivers/bluetooth/hci_qca.c index 1897d7bf7629a..8de195c2fc8d6 100644 --- a/drivers/bluetooth/hci_qca.c +++ b/drivers/bluetooth/hci_qca.c @@ -2239,6 +2239,18 @@ static void qca_power_shutdown(struct hci_uart *hu) qcadev = serdev_device_get_drvdata(hu->serdev); power = qcadev->bt_power; + switch (soc_type) { + case QCA_WCN3988: + case QCA_WCN3990: + case QCA_WCN3991: + case QCA_WCN3998: + host_set_baudrate(hu, 2400); + qca_send_power_pulse(hu, false); + break; + default: + break; + } + if (power && power->pwrseq) { pwrseq_power_off(power->pwrseq); set_bit(QCA_BT_OFF, &qca->flags); @@ -2250,8 +2262,6 @@ static void qca_power_shutdown(struct hci_uart *hu) case QCA_WCN3990: case QCA_WCN3991: case QCA_WCN3998: - host_set_baudrate(hu, 2400); - qca_send_power_pulse(hu, false); qca_regulator_disable(qcadev); break; @@ -2423,6 +2433,11 @@ static int qca_serdev_probe(struct serdev_device *serdev) } switch (qcadev->btsoc_type) { + case QCA_WCN3950: + case QCA_WCN3988: + case QCA_WCN3990: + case QCA_WCN3991: + case QCA_WCN3998: case QCA_WCN6750: case QCA_WCN6855: case QCA_WCN7850: @@ -2447,12 +2462,7 @@ static int qca_serdev_probe(struct serdev_device *serdev) else break; } - fallthrough; - case QCA_WCN3950: - case QCA_WCN3988: - case QCA_WCN3990: - case QCA_WCN3991: - case QCA_WCN3998: + qcadev->bt_power->dev = &serdev->dev; err = qca_init_regulators(qcadev->bt_power, data->vregs, data->num_vregs); -- 2.53.0