From mboxrd@z Thu Jan 1 00:00:00 1970 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 79DEE54BFC; Thu, 30 Nov 2023 16:25:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="r2Kq72a8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A1C32C433C8; Thu, 30 Nov 2023 16:25:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1701361548; bh=ma7oukoRMv5WQ6kQvSQaRSEHbFJJOfmWguem/XMHnb4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=r2Kq72a8xNNJVQF0JTnd0enRgog+xfAHHZ1mAhrkb2HRhZ39OWrATnk6MbjOAYY7s SrsnXe/ErZJNI6fpLCjmlWu8vDkpibFS1jrSdfzzAs5OuqJqTEC0iACIOcIEHDlwSe cox4CTsao4gWRkh+i5J2xKlCiCd0l2f7RIomfvds= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Hans de Goede , "Rafael J. Wysocki" Subject: [PATCH 6.6 066/112] ACPI: PM: Add acpi_device_fix_up_power_children() function Date: Thu, 30 Nov 2023 16:21:53 +0000 Message-ID: <20231130162142.416068942@linuxfoundation.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20231130162140.298098091@linuxfoundation.org> References: <20231130162140.298098091@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.6-stable review patch. If anyone has any objections, please let me know. ------------------ From: Hans de Goede commit 37ba91a82e3b9de35f64348c62b5ec7d74e3a41c upstream. In some cases it is necessary to fix-up the power-state of an ACPI device's children without touching the ACPI device itself add a new acpi_device_fix_up_power_children() function for this. Signed-off-by: Hans de Goede Cc: 6.6+ # 6.6+ Signed-off-by: Rafael J. Wysocki Signed-off-by: Greg Kroah-Hartman --- drivers/acpi/device_pm.c | 13 +++++++++++++ include/acpi/acpi_bus.h | 1 + 2 files changed, 14 insertions(+) --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -397,6 +397,19 @@ void acpi_device_fix_up_power_extended(s } EXPORT_SYMBOL_GPL(acpi_device_fix_up_power_extended); +/** + * acpi_device_fix_up_power_children - Force a device's children into D0. + * @adev: Parent device object whose children's power state is to be fixed up. + * + * Call acpi_device_fix_up_power() for @adev's children so long as they + * are reported as present and enabled. + */ +void acpi_device_fix_up_power_children(struct acpi_device *adev) +{ + acpi_dev_for_each_child(adev, fix_up_power_if_applicable, NULL); +} +EXPORT_SYMBOL_GPL(acpi_device_fix_up_power_children); + int acpi_device_update_power(struct acpi_device *device, int *state_p) { int state; --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -539,6 +539,7 @@ int acpi_device_set_power(struct acpi_de int acpi_bus_init_power(struct acpi_device *device); int acpi_device_fix_up_power(struct acpi_device *device); void acpi_device_fix_up_power_extended(struct acpi_device *adev); +void acpi_device_fix_up_power_children(struct acpi_device *adev); int acpi_bus_update_power(acpi_handle handle, int *state_p); int acpi_device_update_power(struct acpi_device *device, int *state_p); bool acpi_bus_power_manageable(acpi_handle handle);