[PATCH v6 0/7] treewide: ufs: Add support for Renesas R-Car UFS controller

From: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
To: alim.akhtar@samsung.com, avri.altman@wdc.com, robh+dt@kernel.org,
	krzk+dt@kernel.org
Cc: jejb@linux.ibm.com, martin.petersen@oracle.com,
	linux-scsi@vger.kernel.org, devicetree@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Subject: [PATCH v6 0/7] treewide: ufs: Add support for Renesas R-Car UFS controller
Date: Fri,  3 Jun 2022 20:05:17 +0900	[thread overview]
Message-ID: <20220603110524.1997825-1-yoshihiro.shimoda.uh@renesas.com> (raw)

This patch series adds support Renesas R-Car S4-8 UFS controller.
This controller has some restrictions so adds some quirks for it.
Before using this driver, we have to initialize a clock generator
on the environment board (named "Spider") by using the commands of
U-Boot like below:
 => i2c dev 0
 => i2c mw 0x6c 0x26 0x05
 => i2c olen 0x6c 2
 => i2c mw 0x6c 0x13a 0x86
 => i2c mw 0x6c 0x268 0x06
 => i2c mw 0x6c 0x269 0x00
 => i2c mw 0x6c 0x26a 0x3c
 => i2c mw 0x6c 0x26b 0x00
 => i2c mw 0x6c 0x26c 0x06
 => i2c mw 0x6c 0x26d 0x00
 => i2c mw 0x6c 0x26e 0x3f
 => i2c mw 0x6c 0x26f 0x00

Changes from v5:
 - Rebase on the following repositories:
   - Based on renesas-drivers-2022-05-24-v5.18
   - Merged jejb/for-next
 - Add Reviewed-by and Acked-by tags in patch [1/7].
   Note that the document has an error about number of interrupts.
   So, the Renesas UFS has one interrupt and it's the same with ufs-common.yaml.
 - Clear hda->capabilities of MASK_64_ADDRESSING_SUPPORT instead in patch [2/7].
 - Fix some issues in patch [4/7].
 - Add Reviewed-by in patch [6/7] and [7/7].
https://lore.kernel.org/all/20220427123706.555166-2-yoshihiro.shimoda.uh@renesas.com/

Changes from v4:
 - Fix ufs_renesas_of_match was not terminated in patch [4/7].
   (from kernel test robot, thanks!)
https://lore.kernel.org/all/20220420025450.289578-1-yoshihiro.shimoda.uh@renesas.com/

Changes from v3:
 - Fix build warning by clang in patch [4/7].
https://lore.kernel.org/all/20220419120316.209151-1-yoshihiro.shimoda.uh@renesas.com/

Changes from v2:
 - Add Reviewed-by in patch [1/7]. (Krzysztof, thanks!)
 - Use WARN_ON() instead of BUG_ON in patch [4/7].
https://lore.kernel.org/all/20220414023115.4190736-1-yoshihiro.shimoda.uh@renesas.com/

Changes from v1:
 - Fix dt-binding doc in patch [1/7].
 - Add __maybe_unused for compile test on other platforms in patch [4/7].
 - Fix node names in patch [5/7].
https://lore.kernel.org/all/20220412073647.3808493-1-yoshihiro.shimoda.uh@renesas.com/

Yoshihiro Shimoda (7):
  dt-bindings: ufs: Document Renesas R-Car UFS host controller
  ufs: add UFSHCD_QUIRK_BROKEN_64BIT_ADDRESS
  ufs: add UFSHCD_QUIRK_HIBERN_FASTAUTO
  scsi: ufs-renesas: Add support for Renesas R-Car UFS controller
  scsi: MAINTAINERS: Add maintainer for Renesas UFS driver
  arm64: dts: renesas: r8a779f0: Add UFS node
  arm64: dts: renesas: r8a779f0: spider-cpu: Enable UFS device

 .../devicetree/bindings/ufs/renesas,ufs.yaml  |  61 +++
 MAINTAINERS                                   |   7 +
 .../boot/dts/renesas/r8a779f0-spider-cpu.dtsi |   8 +
 arch/arm64/boot/dts/renesas/r8a779f0.dtsi     |  19 +
 drivers/ufs/core/ufshcd.c                     |  11 +-
 drivers/ufs/host/Kconfig                      |  12 +
 drivers/ufs/host/Makefile                     |   1 +
 drivers/ufs/host/ufs-renesas.c                | 412 ++++++++++++++++++
 include/ufs/ufshcd.h                          |  12 +
 9 files changed, 541 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/ufs/renesas,ufs.yaml
 create mode 100644 drivers/ufs/host/ufs-renesas.c

-- 
2.25.1