[v16, 0/7] Fix eSDHC host version register bug

[Yangbo Lu <yangbo.lu@nxp.com>]

This patchset is used to fix a host version register bug in the T4240-R1.0-R2.0
eSDHC controller. To match the SoC version and revision, 15 previous version
patchsets had tried many methods but all of them were rejected by reviewers.
Such as
	- dts compatible method
	- syscon method
	- ifdef PPC method
	- GUTS driver getting SVR method
Anrd suggested a soc_device_match method in v10, and this is the only available
method left now. This v11 patchset introduces the soc_device_match interface in
soc driver.

The first four patches of Yangbo are to add the GUTS driver. This is used to
register a soc device which contain soc version and revision information.
The other three patches introduce the soc_device_match method in soc driver
and apply it on esdhc driver to fix this bug.

---
Changes for v15:
	- Dropped patch 'dt: bindings: update Freescale DCFG compatible'
	  since the work had been done by below patch on ShawnGuo's linux tree.
	  'dt-bindings: fsl: add LS1043A/LS1046A/LS2080A compatible for SCFG
	   and DCFG'
	- Fixed error code issue in guts driver
Changes for v16:
	- Dropped patch 'powerpc/fsl: move mpc85xx.h to include/linux/fsl'
	- Added a bug-fix patch from Geert
---

Arnd Bergmann (1):
  base: soc: introduce soc_device_match() interface

Geert Uytterhoeven (1):
  base: soc: Check for NULL SoC device attributes

Yangbo Lu (5):
  ARM64: dts: ls2080a: add device configuration node
  dt: bindings: move guts devicetree doc out of powerpc directory
  soc: fsl: add GUTS driver for QorIQ platforms
  MAINTAINERS: add entry for Freescale SoC drivers
  mmc: sdhci-of-esdhc: fix host version for T4240-R1.0-R2.0

 .../bindings/{powerpc => soc}/fsl/guts.txt         |   3 +
 MAINTAINERS                                        |  11 +-
 arch/arm64/boot/dts/freescale/fsl-ls2080a.dtsi     |   6 +
 drivers/base/Kconfig                               |   1 +
 drivers/base/soc.c                                 |  70 ++++++
 drivers/mmc/host/Kconfig                           |   1 +
 drivers/mmc/host/sdhci-of-esdhc.c                  |  20 ++
 drivers/soc/Kconfig                                |   3 +-
 drivers/soc/fsl/Kconfig                            |  18 ++
 drivers/soc/fsl/Makefile                           |   1 +
 drivers/soc/fsl/guts.c                             | 236 +++++++++++++++++++++
 include/linux/fsl/guts.h                           | 125 ++++++-----
 include/linux/sys_soc.h                            |   3 +
 13 files changed, 447 insertions(+), 51 deletions(-)
 rename Documentation/devicetree/bindings/{powerpc => soc}/fsl/guts.txt (91%)
 create mode 100644 drivers/soc/fsl/Kconfig
 create mode 100644 drivers/soc/fsl/guts.c

-- 
2.1.0.27.g96db324