From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-ej1-f66.google.com ([209.85.218.66]:37236 "EHLO mail-ej1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387644AbgEYS0N (ORCPT ); Mon, 25 May 2020 14:26:13 -0400 From: =?UTF-8?q?Krzysztof=20Wilczy=C5=84ski?= Subject: [PATCH 0/8] Add helper for accessing Power Management callbacs Date: Mon, 25 May 2020 18:26:00 +0000 Message-Id: <20200525182608.1823735-1-kw@linux.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Sender: linux-s390-owner@vger.kernel.org List-ID: To: Dan Carpenter Cc: "Rafael J. Wysocki" , Len Brown , Kevin Hilman , Ulf Hansson , Pavel Machek , Greg Kroah-Hartman , Johan Hovold , Alex Elder , Bjorn Helgaas , "James E.J. Bottomley" , "Martin K. Petersen" , Felipe Balbi , Julian Wiedmann , Karsten Graul , Ursula Braun , Jakub Kicinski , Bjorn Andersson , John Stultz , "David S. Miller" , greybus-dev@lists.linaro.org, netdev@vger.kernel.org, linux-acpi@vger.kernel.org, linux-pci@vger.kernel.org, linux-pm@vger.kernel.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org This series aims to add a new driver_to_pm() helper allowing for accessing the Power Management callbacs for a particular device. Access to the callbacs (struct dev_pm_ops) is normally done through using the pm pointer that is embedded within the device_driver struct. This new helper allows for the code required to reference the pm pointer and access Power Management callbas to be simplified. Changing the following: struct device_driver *drv = dev->driver; if (dev->driver && dev->driver->pm && dev->driver->pm->prepare) { int ret = dev->driver->pm->prepare(dev); To: const struct dev_pm_ops *pm = driver_to_pm(dev->driver); if (pm && pm->prepare) { int ret = pm->prepare(dev); Or, changing the following: const struct dev_pm_ops *pm = dev->driver ? dev->driver->pm : NULL; To: const struct dev_pm_ops *pm = driver_to_pm(dev->driver); This series builds on top of the previous commit 6da2f2ccfd2d ("PCI/PM: Make power management op coding style consistent") that had an aim to make accessing the Power Managemnet callbacs more consistent. No functional change intended. Links: https://lore.kernel.org/driverdev-devel/20191014230016.240912-6-helgaas@kernel.org/ https://lore.kernel.org/driverdev-devel/8592302.r4xC6RIy69@kreacher/ https://lore.kernel.org/driverdev-devel/20191016135002.GA24678@kadam/ Krzysztof Wilczyński (8): driver core: Add helper for accessing Power Management callbacs ACPI: PM: Use the new device_to_pm() helper to access struct dev_pm_ops greybus: Use the new device_to_pm() helper to access struct dev_pm_ops scsi: pm: Use the new device_to_pm() helper to access struct dev_pm_ops usb: phy: fsl: Use the new device_to_pm() helper to access struct dev_pm_ops PCI/PM: Use the new device_to_pm() helper to access struct dev_pm_ops PM: Use the new device_to_pm() helper to access struct dev_pm_ops net/iucv: Use the new device_to_pm() helper to access struct dev_pm_ops drivers/acpi/device_pm.c | 5 ++- drivers/base/power/domain.c | 12 ++++-- drivers/base/power/generic_ops.c | 65 ++++++++++++++------------------ drivers/base/power/main.c | 48 +++++++++++++++-------- drivers/base/power/runtime.c | 7 ++-- drivers/greybus/bundle.c | 4 +- drivers/pci/pci-driver.c | 32 ++++++++-------- drivers/scsi/scsi_pm.c | 8 ++-- drivers/usb/phy/phy-fsl-usb.c | 11 ++++-- include/linux/device/driver.h | 15 ++++++++ net/iucv/iucv.c | 30 +++++++++------ 11 files changed, 138 insertions(+), 99 deletions(-) -- 2.26.2