[v2,00/15] Add initial USB support for the Renesas RZ/G3S SoC

Message

Claudiu Nov. 26, 2024, 9:20 a.m. UTC

From: Claudiu Beznea <[e-mail]>

Hi,

Series adds initial USB support for the Renesas RZ/G3S SoC.

Series is split as follows:
- patches 01-05/15	- add SYSC driver support; this is necessary for USB
			  PHY as the USB PHY driver need to touch a register in
			  the SYSC address space, in the initialization phase
- patch 06/15		- updates the USBHS documentation for RZ/G3S
- patches 07-10/15	- updates the USB PHY support to handle the SYSC
			  USB PWRRDY signal. Along with it a fix for the
			  DT bindings and one for the PHY driver were
			  added; fixes are RZ/G3S USB related
- patch 11/15		- document the USB PHY Ctrl support
- patches 12-15/15	- add device tree support

Merge strategy, if any:
- patches 01-05/15,12-14/15 can go through Renesas tree
- patch 06/14 can go though USB tree
- patches 07-10/14 can go through PHY tree
- patch 11/15 can go though reset controller tree

Thank you,
Claudiu Beznea

Changes in v2:
- dropped v1 patches already applied
- added fixes patches (07/14 and 09/14)
- dropped the approach of handling the USB PWRRDY though a reset controller
  driver and introduced the signal concept for the SYSC driver; because
  of this, most of the work done in v1 was dropped
- per patch changes are listed in individual patches, if any

Christophe JAILLET (1):
  phy: renesas: rcar-gen3-usb2: Fix an error handling path in
    rcar_gen3_phy_usb2_probe()

Claudiu Beznea (14):
  dt-bindings: soc: renesas: renesas,rzg2l-sysc: Add
    #renesas,sysc-signal-cells
  soc: renesas: Add SYSC driver for Renesas RZ family
  soc: renesas: rz-sysc: Enable SYSC driver for RZ/G3S
  soc: renesas: rz-sysc: Add SoC detection support
  soc: renesas: rz-sysc: Move RZ/G3S SoC detection to the SYSC driver
  dt-bindings: usb: renesas,usbhs: Document RZ/G3S SoC
  dt-bindings: phy: renesas,usb2-phy: Mark resets as required for RZ/G3S
  dt-bindings: phy: renesas,usb2-phy: Add renesas,sysc-signal
  phy: renesas: rcar-gen3-usb2: Add support for PWRRDY
  dt-bindings: reset: renesas,rzg2l-usbphy-ctrl: Document RZ/G3S support
  arm64: dts: renesas: Add #renesas,sysc-signal-cells to system
    controller node
  arm64: dts: renesas: r9a08g045: Enable the system controller
  arm64: dts: renesas: r9a08g045: Add USB support
  arm64: dts: renesas: rzg3s-smarc: Enable USB support

 .../bindings/phy/renesas,usb2-phy.yaml        |  26 +-
 .../reset/renesas,rzg2l-usbphy-ctrl.yaml      |   1 +
 .../soc/renesas/renesas,rzg2l-sysc.yaml       |  23 +-
 .../bindings/usb/renesas,usbhs.yaml           |   2 +
 arch/arm64/boot/dts/renesas/r9a07g043.dtsi    |   3 +-
 arch/arm64/boot/dts/renesas/r9a07g044.dtsi    |   3 +-
 arch/arm64/boot/dts/renesas/r9a07g054.dtsi    |   3 +-
 arch/arm64/boot/dts/renesas/r9a08g045.dtsi    | 123 +++++-
 arch/arm64/boot/dts/renesas/rzg3s-smarc.dtsi  |  57 +++
 drivers/phy/renesas/phy-rcar-gen3-usb2.c      |  77 +++-
 drivers/soc/renesas/Kconfig                   |   8 +
 drivers/soc/renesas/Makefile                  |   2 +
 drivers/soc/renesas/r9a08g045-sysc.c          |  43 +++
 drivers/soc/renesas/renesas-soc.c             |  12 -
 drivers/soc/renesas/rz-sysc.c                 | 350 ++++++++++++++++++
 drivers/soc/renesas/rz-sysc.h                 |  70 ++++
 16 files changed, 778 insertions(+), 25 deletions(-)
 create mode 100644 drivers/soc/renesas/r9a08g045-sysc.c
 create mode 100644 drivers/soc/renesas/rz-sysc.c
 create mode 100644 drivers/soc/renesas/rz-sysc.h