From patchwork Mon May 25 18:26:00 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= X-Patchwork-Id: 11569309 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 820A71392 for ; Mon, 25 May 2020 18:26:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 74D03207FB for ; Mon, 25 May 2020 18:26:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389264AbgEYS0N (ORCPT ); Mon, 25 May 2020 14:26:13 -0400 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 Received: by mail-ej1-f66.google.com with SMTP id l21so21340052eji.4; Mon, 25 May 2020 11:26:11 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=1qikXNcYuPEp2SbYrhq3PIeLmdf37Vp6toU2hryNiAU=; b=UmCbsIdwmg0jEmX4PliEuAzxbhnr++enG6DM+5PuammxCnBstbdR/KQuR+PQ0y42pB fELpWJdXAh9RRdvCdWiH9zJBGAFpDDjj9hVcqgZRFsmp+QEJ3TaWFO9YfkzBGYJJHvAw o4Q+ZpiNqa5bc5+55Ii/p9IZQV6zI7wmnkKzetFoTXnND07uZfTbO0xCl/Lq513bMTAH 5Wh8pwjGqrxPUiH1SErSegLkfEqMhFcnq8ekW5Ri//s16Av17xL3ey9iqTng4x6xVtNd 6L3rIuXUbnfs+yEY4cuwJJkqbYguGR9w4bl6PHVt3r2SZMgjF5r8gFw3XllbqpAHOW39 eTGQ== X-Gm-Message-State: AOAM530wgjA9f4C4bbwoAhVYMprvnaEiCXOn5aEnfXakvXVCvKmo8Wih B7R6u9qx8iVPnxwLifqJiBg= X-Google-Smtp-Source: ABdhPJxkEBfJS/XXtSSCnmQUkO84UroYhCAKuA4jbTqreWDo9ErA8dsQuCsf23LSLacMkksSHFqFeg== X-Received: by 2002:a17:906:4bc1:: with SMTP id x1mr19051208ejv.13.1590431170704; Mon, 25 May 2020 11:26:10 -0700 (PDT) Received: from workstation.lan ([95.155.85.46]) by smtp.gmail.com with ESMTPSA id n15sm15555707ejs.10.2020.05.25.11.26.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 May 2020 11:26:09 -0700 (PDT) From: =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= 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 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> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@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(-)