From nobody Sun Apr 5 16:29:45 2026 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 8445A2E8B6B; Tue, 24 Mar 2026 20:03:26 +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=1774382606; cv=none; b=NAcHgDL6DWdqEJ/oDEXaNO7+EHbpsMRsGu0qIwQV1ePx5C7UNWpTt27GklZKiPc7FCqCRWOh8vlf7f+9BytVlcRe9id62xujM2d36cUoLlo6QZ8ilJwiiIvt0nG3WP2iKedw5uk/+LqaZYrr9qUgltdmCrU4DnOQ3B+NQBMi74g= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774382606; c=relaxed/simple; bh=x5t1xPnj3o3XCZMpvJ0Zk6gLOtGTVSs/d6xDj9x+gAg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=uuS3f5hUfoU0jEY5H/XAmq5tTy02+TDMHqLTjpF5sXDnAAtLeayHlt1tsv8UN5WspMAkwUaZGbgMf6HR2fH+7g99tIGiiBxRxtcJ+UnDsq5VbL3B9uMDxpbTSeUHOkoO1I5Qh0sM+dCkXV06rcrFtNSfMVnoVLC0JLdDX8SBbOs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LlqitMXa; 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="LlqitMXa" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C0C10C2BCB2; Tue, 24 Mar 2026 20:03:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774382606; bh=x5t1xPnj3o3XCZMpvJ0Zk6gLOtGTVSs/d6xDj9x+gAg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LlqitMXaottQWh/mmUaLjXXoeTYddI+/DIGWdWX3eAlPdxaEUmucBn2G89yrfPuW2 +PGQJwXhkANbUhq2E1XN2kvLmPT5VijZ2+J4Gt1JEXvwlQ0KRdMU8ucujIIf4gKLsd nEwEzxoKLlW5ExXyeMxkFyiVCs5Vd13If3Grv6zN1LfkUgQFc6TJFYSL4LweNtvphJ g1+iMvPE0XWAB7Q8XpgofVU2zd0xZ9rvpj4GsIOKnxsmQvro+LUNINtcS2Hb6XPmsM sknaKbSSMusuiB8A5cviLOZLydwdGzLLGP4Ye0eBZITL2ALid1dnn40ZJZOby3iayr JBm9ue+iXnB/Q== From: "Rafael J. Wysocki" To: Ilpo =?ISO-8859-1?Q?J=E4rvinen?= Cc: LKML , Linux ACPI , Hans de Goede , platform-driver-x86@vger.kernel.org, Azael Avalos Subject: [PATCH v1 5/7] platform/x86: toshiba_bluetooth: Convert ACPI driver to a platform one Date: Tue, 24 Mar 2026 21:01:28 +0100 Message-ID: <3420881.44csPzL39Z@rafael.j.wysocki> Organization: Linux Kernel Development In-Reply-To: <6262981.lOV4Wx5bFT@rafael.j.wysocki> References: <6262981.lOV4Wx5bFT@rafael.j.wysocki> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: "Rafael J. Wysocki" In all cases in which a struct acpi_driver is used for binding a driver to an ACPI device object, a corresponding platform device is created by the ACPI core and that device is regarded as a proper representation of underlying hardware. Accordingly, a struct platform_driver should be used by driver code to bind to that device. There are multiple reasons why drivers should not bind directly to ACPI device objects [1]. Overall, it is better to bind drivers to platform devices than to their ACPI companions, so convert the Toshiba Bluetooth Enable driver from an ACPI driver to a platform one. While this is not expected to alter functionality, it changes sysfs layout and so it will be visible to user space. Link: https://lore.kernel.org/all/2396510.ElGaqSPkdT@rafael.j.wysocki/ [1] Signed-off-by: Rafael J. Wysocki --- drivers/platform/x86/toshiba_bluetooth.c | 42 ++++++++++++------------ 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x8= 6/toshiba_bluetooth.c index 3824c2beaf11..e50d4fc1e603 100644 --- a/drivers/platform/x86/toshiba_bluetooth.c +++ b/drivers/platform/x86/toshiba_bluetooth.c @@ -17,6 +17,7 @@ #include #include #include +#include =20 #define BT_KILLSWITCH_MASK 0x01 #define BT_PLUGGED_MASK 0x40 @@ -35,8 +36,8 @@ struct toshiba_bluetooth_dev { bool powered; }; =20 -static int toshiba_bt_rfkill_add(struct acpi_device *device); -static void toshiba_bt_rfkill_remove(struct acpi_device *device); +static int toshiba_bt_rfkill_probe(struct platform_device *pdev); +static void toshiba_bt_rfkill_remove(struct platform_device *pdev); static void toshiba_bt_rfkill_notify(acpi_handle handle, u32 event, void *= data); =20 static const struct acpi_device_id bt_device_ids[] =3D { @@ -50,15 +51,14 @@ static int toshiba_bt_resume(struct device *dev); #endif static SIMPLE_DEV_PM_OPS(toshiba_bt_pm, NULL, toshiba_bt_resume); =20 -static struct acpi_driver toshiba_bt_rfkill_driver =3D { - .name =3D "Toshiba BT", - .class =3D "Toshiba", - .ids =3D bt_device_ids, - .ops =3D { - .add =3D toshiba_bt_rfkill_add, - .remove =3D toshiba_bt_rfkill_remove, - }, - .drv.pm =3D &toshiba_bt_pm, +static struct platform_driver toshiba_bt_rfkill_driver =3D { + .probe =3D toshiba_bt_rfkill_probe, + .remove =3D toshiba_bt_rfkill_remove, + .driver =3D { + .name =3D "Toshiba BT", + .acpi_match_table =3D bt_device_ids, + .pm =3D &toshiba_bt_pm, + }, }; =20 static int toshiba_bluetooth_present(acpi_handle handle) @@ -215,11 +215,9 @@ static void toshiba_bt_rfkill_notify(acpi_handle handl= e, u32 event, void *data) #ifdef CONFIG_PM_SLEEP static int toshiba_bt_resume(struct device *dev) { - struct toshiba_bluetooth_dev *bt_dev; + struct toshiba_bluetooth_dev *bt_dev =3D dev_get_drvdata(dev); int ret; =20 - bt_dev =3D acpi_driver_data(to_acpi_device(dev)); - ret =3D toshiba_bluetooth_sync_status(bt_dev); if (ret) return ret; @@ -230,8 +228,9 @@ static int toshiba_bt_resume(struct device *dev) } #endif =20 -static int toshiba_bt_rfkill_add(struct acpi_device *device) +static int toshiba_bt_rfkill_probe(struct platform_device *pdev) { + struct acpi_device *device =3D ACPI_COMPANION(&pdev->dev); struct toshiba_bluetooth_dev *bt_dev; int result; =20 @@ -245,8 +244,8 @@ static int toshiba_bt_rfkill_add(struct acpi_device *de= vice) if (!bt_dev) return -ENOMEM; bt_dev->acpi_dev =3D device; - device->driver_data =3D bt_dev; - dev_set_drvdata(&device->dev, bt_dev); + + platform_set_drvdata(pdev, bt_dev); =20 result =3D toshiba_bluetooth_sync_status(bt_dev); if (result) { @@ -255,7 +254,7 @@ static int toshiba_bt_rfkill_add(struct acpi_device *de= vice) } =20 bt_dev->rfk =3D rfkill_alloc("Toshiba Bluetooth", - &device->dev, + &pdev->dev, RFKILL_TYPE_BLUETOOTH, &rfk_ops, bt_dev); @@ -291,9 +290,10 @@ static int toshiba_bt_rfkill_add(struct acpi_device *d= evice) return result; } =20 -static void toshiba_bt_rfkill_remove(struct acpi_device *device) +static void toshiba_bt_rfkill_remove(struct platform_device *pdev) { - struct toshiba_bluetooth_dev *bt_dev =3D acpi_driver_data(device); + struct toshiba_bluetooth_dev *bt_dev =3D platform_get_drvdata(pdev); + struct acpi_device *device =3D ACPI_COMPANION(&pdev->dev); =20 /* clean up */ acpi_dev_remove_notify_handler(device, ACPI_DEVICE_NOTIFY, @@ -309,4 +309,4 @@ static void toshiba_bt_rfkill_remove(struct acpi_device= *device) toshiba_bluetooth_disable(device->handle); } =20 -module_acpi_driver(toshiba_bt_rfkill_driver); +module_platform_driver(toshiba_bt_rfkill_driver); --=20 2.51.0