linux-kernel - [PATCH v4 0/5] drivers: new helper for ioremapping memory resources

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Date:   Tue, 24 Mar 2020 00:06:07 +0800
From:   Dejin Zheng <zhengdejin5@...il.com>
To:     gregkh@...uxfoundation.org, rafael@...nel.org, hminas@...opsys.com,
        mathias.nyman@...el.com, bgolaszewski@...libre.com, arnd@...db.de,
        geert+renesas@...der.be, tomas.winkler@...el.com,
        tglx@...utronix.de, hdegoede@...hat.com, treding@...dia.com,
        suzuki.poulose@....com
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Dejin Zheng <zhengdejin5@...il.com>
Subject: [PATCH v4 0/5] drivers: new helper for ioremapping memory resources

Since commit "drivers: provide devm_platform_ioremap_resource()",
It was wrap platform_get_resource() and devm_ioremap_resource() as
single helper devm_platform_ioremap_resource(). but now, many drivers
still used platform_get_resource() and devm_ioremap_resource()
together in the kernel tree. The reason can not be replaced is they
still need use the resource variables obtained by platform_get_resource().
so provide this helper.

The first patch in this series adds a wrapper for these two calls and
the other uses it in a driver.

v3 -> v4:
	- modified the description of a parameter res in patch 1.
	- modified patch 5's commit comment.
v2 -> v3:
	- rename the function to
	  devm_platform_get_and_ioremap_resource() by Sergei's suggestion.
	- make the last parameter res as optional by Geert's suggestion.
	- Reimplement devm_platform_ioremap_resource by calling
	  devm_platform_get_and_ioremap_resource() by Geert's suggestion.

v1 -> v2:
	- add some real users of this function (Thanks for greg k-h's reminder)

Dejin Zheng (5):
  drivers: provide devm_platform_get_and_ioremap_resource()
  usb: host: xhci-plat: convert to
    devm_platform_get_and_ioremap_resource
  usb: host: hisilicon: convert to
    devm_platform_get_and_ioremap_resource
  usb: dwc2: convert to devm_platform_get_and_ioremap_resource
  driver core: platform: Reimplement devm_platform_ioremap_resource

 drivers/base/platform.c         | 27 +++++++++++++++++++++++----
 drivers/usb/dwc2/platform.c     |  3 +--
 drivers/usb/host/xhci-histb.c   |  3 +--
 drivers/usb/host/xhci-plat.c    |  3 +--
 include/linux/platform_device.h |  3 +++
 5 files changed, 29 insertions(+), 10 deletions(-)

-- 
2.25.0