linux-kernel - [PATCH v5 0/3] Add modules for realtek USB card reader

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Date:	Tue, 25 Mar 2014 18:44:50 +0800
From:	<rogerable@...ltek.com>
To:	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Chris Ball <chris@...ntf.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Maxim Levitsky <maximlevitsky@...il.com>,
	Alex Dubov <oakad@...oo.com>,
	Dan Carpenter <dan.carpenter@...cle.com>,
	Ulf Hansson <ulf.hansson@...aro.org>,
	Andrew Morton <akpm@...ux-foundation.org>
CC:	<rogerable@...ltek.com>, <linux-kernel@...r.kernel.org>,
	<linux-mmc@...r.kernel.org>,
	<driverdev-devel@...uxdriverproject.org>,
	<wei_wang@...lsil.com.cn>, <micky_ching@...lsil.com.cn>
Subject: [PATCH v5 0/3] Add modules for realtek USB card reader

From: Roger Tseng <rogerable@...ltek.com>

This patchset adds modules to support Realtek USB vendor specific class flash
card reader: one base module in MFD subsystem and two host modules in both mmc
and memstick subsystems. The architecture is similar to rtsx_pci.

This work is done primarily to replace the staging driver: staging/rts5139,
which doesn't utilize mmc nor memstick subsystems. Once the patchset or its
revision is applied, we may need Greg's help to remove the staging one.

v2:
1. Fix potential buffer overflow in rtsx_usb_seq_write_register()
2. Remove unnecessary casting and messages
3. Revise coding style and white spaces

v3:
1. Fix MMC detection fail when under xhci
2. Minor change of pm_runtime behavior in rtsx_usb_ms to prevent some rare
   freeze due to erroneous Memstick card(not MS-Pro)
3. Further revise coding style as suggested in the thread of v2
4. Using managed resources: devm_*
5. Change license from "GPL v2 and later" to "GPL v2"

v4:
1. Remove invocations to deprecated/removed mmc_suspend|resume_host APIs and
   unnecessary platform device pm routines
2. Support CRC-ignored R1 response for CMD13 in response to commit:
   a27fbf2f067b0cd6f172c8b696b9a44c58bfaa7a: mmc: add ignorance case for 
   CMD13 CRC error
3. Remove unnecessary #ifdef CONFIG_PM_RUNTIME

v5:
1. rtsx_usb_ms.c: adding header inclusion, removing unnecessary NULL checking,
   and add cancel_work_sync in removal handler to wait possible pending
   works.
(Changes only rtsx_usb_ms. Other files remain the same to v4)

Roger Tseng (3):
  mfd: Add realtek USB card reader driver
  mmc: Add realtek USB sdmmc host driver
  memstick: Add realtek USB memstick host driver

 drivers/memstick/host/Kconfig       |   10 +
 drivers/memstick/host/Makefile      |    1 +
 drivers/memstick/host/rtsx_usb_ms.c |  839 ++++++++++++++++++++
 drivers/mfd/Kconfig                 |   10 +
 drivers/mfd/Makefile                |    1 +
 drivers/mfd/rtsx_usb.c              |  760 ++++++++++++++++++
 drivers/mmc/host/Kconfig            |    7 +
 drivers/mmc/host/Makefile           |    1 +
 drivers/mmc/host/rtsx_usb_sdmmc.c   | 1462 +++++++++++++++++++++++++++++++++++
 include/linux/mfd/rtsx_usb.h        |  628 +++++++++++++++
 10 files changed, 3719 insertions(+)
 create mode 100644 drivers/memstick/host/rtsx_usb_ms.c
 create mode 100644 drivers/mfd/rtsx_usb.c
 create mode 100644 drivers/mmc/host/rtsx_usb_sdmmc.c
 create mode 100644 include/linux/mfd/rtsx_usb.h

-- 
1.8.2

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