linux-kernel - [PATCH v3 0/8] drivers: add new variants of devm_platform_ioremap

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Date:   Sun,  6 Oct 2019 07:39:08 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Jonathan Corbet <corbet@....net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     linux-doc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org,
        Bartosz Golaszewski <bgolaszewski@...libre.com>
Subject: [PATCH v3 0/8] drivers: add new variants of devm_platform_ioremap_resource()

From: Bartosz Golaszewski <bgolaszewski@...libre.com>

The new devm_platform_ioremap_resource() helper has now been widely
adopted and used in many drivers. Users of the write-combined ioremap()
variants could benefit from the same code shrinkage. This series provides
a write-combined version of devm_platform_ioremap_resource() and uses it in a
relevant driver with the assumption that - just like was the case
previously - a coccinelle script will be developed to ease the transition
for others.

There are also users of platform_get_resource_byname() who call
devm_ioremap_resource() next, so provide another variant that they can use
together with two examples.

v1 -> v2:
- dropped everything related to nocache ioremap as this is going away

v2 -> v3:
- don't call platform_get_resource() as an argument of devm_ioremap_resource(),
  it actually decreases readability
- add devm_platform_ioremap_resource_byname() as another variant

Bartosz Golaszewski (8):
  Documentation: devres: add missing entry for
    devm_platform_ioremap_resource()
  lib: devres: prepare devm_ioremap_resource() for more variants
  lib: devres: provide devm_ioremap_resource_wc()
  drivers: platform: provide devm_platform_ioremap_resource_wc()
  misc: sram: use devm_platform_ioremap_resource_wc()
  drivers: provide devm_platform_ioremap_resource_byname()
  gpio: mvebu: use devm_platform_ioremap_resource_byname()
  gpio: tegra186: use devm_platform_ioremap_resource_byname()

 .../driver-api/driver-model/devres.rst        |  4 ++
 drivers/base/platform.c                       | 39 +++++++++++-
 drivers/gpio/gpio-mvebu.c                     | 19 +++---
 drivers/gpio/gpio-tegra186.c                  |  4 +-
 drivers/misc/sram.c                           | 28 +++------
 include/linux/device.h                        |  2 +
 include/linux/platform_device.h               |  6 ++
 lib/devres.c                                  | 62 +++++++++++++------
 8 files changed, 108 insertions(+), 56 deletions(-)

-- 
2.23.0