[PATCH v2 0/2] Add Rockchip USBPHY DM driver

[Johan Jonker]

The Rockchip SoCs with an USB node and compatible = "snps,dwc2" can be
HOST or OTG while the PHY driver is hard coded and initiated in the
board.c file. Above construction is not very U-boot DM alike.
This is an attempt to decouple the USBPHY into a DM driver.

On older Rockchip SOCs an usbphy DT node is placed under a SYSCOM node.

grf: grf at 20008000 {
	usbphy: usbphy {

		usbphy0: usb-phy at 17c {
		};

		usbphy1: usb-phy at 188 {
		};
	};
};

The usbphy node does not show up in the DM tree to be found by the
generic_phy_get_by_index() function. Only by manual transfer to the DT root
is gets detected.

=> dm tree
 Class     Seq    Probed  Driver                Name
-----------------------------------------------------------
 root          0  [ + ]   root_driver           root_driver
 nop           1  [ + ]   rockchip_usbphy       |-- usbphy
 phy           0  [ + ]   rockchip_usbphy_port  |   |-- usb-phy at 17c
 phy           1  [ + ]   rockchip_usbphy_port  |   `-- usb-phy at 188

Changed V2:

Add grf function that binds the usbphy driver to the grf syscom driver.

=> dm tree
 Class     Seq    Probed  Driver                Name
-----------------------------------------------------------
 syscon        9  [ + ]   rk3066_syscon         |-- grf at 20008000
 nop           0  [ + ]   rockchip_usbphy       |   `-- usbphy
 phy           0  [ + ]   rockchip_usbphy_port  |       |-- usb-phy at 17c
 phy           1  [ + ]   rockchip_usbphy_port  |       `-- usb-phy at 188

Johan Jonker (2):
  phy: rockchip: add phy-rockchip-usb2.c
  usb: phy: remove rockchip_usb2_phy.c

 arch/arm/mach-rockchip/board.c                |  28 --
 arch/arm/mach-rockchip/rk3066/syscon_rk3066.c |  26 ++
 arch/arm/mach-rockchip/rk3188/syscon_rk3188.c |  26 ++
 arch/arm/mach-rockchip/rk3288/syscon_rk3288.c |  26 ++
 configs/chromebit_mickey_defconfig            |   2 +-
 configs/chromebook_jerry_defconfig            |   2 +-
 configs/chromebook_minnie_defconfig           |   2 +-
 configs/chromebook_speedy_defconfig           |   2 +-
 configs/evb-rk3288-rk808_defconfig            |   2 +-
 configs/firefly-rk3288_defconfig              |   4 +-
 configs/miqi-rk3288_defconfig                 |   4 +-
 configs/mk808_defconfig                       |   2 +-
 configs/phycore-rk3288_defconfig              |   3 +-
 configs/popmetal-rk3288_defconfig             |   3 +-
 configs/rock-pi-n8-rk3288_defconfig           |   2 +-
 configs/rock2_defconfig                       |   3 +-
 configs/rock_defconfig                        |   3 +-
 configs/tinker-rk3288_defconfig               |   4 +-
 configs/tinker-s-rk3288_defconfig             |   4 +-
 configs/vyasa-rk3288_defconfig                |   2 +-
 drivers/phy/rockchip/Kconfig                  |  28 +-
 drivers/phy/rockchip/Makefile                 |   5 +-
 drivers/phy/rockchip/phy-rockchip-usb2.c      | 371 ++++++++++++++++++
 drivers/usb/phy/Kconfig                       |   3 -
 drivers/usb/phy/Makefile                      |   1 -
 drivers/usb/phy/rockchip_usb2_phy.c           | 113 ------
 include/usb/dwc2_udc.h                        |   1 -
 27 files changed, 494 insertions(+), 178 deletions(-)
 create mode 100644 drivers/phy/rockchip/phy-rockchip-usb2.c
 delete mode 100644 drivers/usb/phy/rockchip_usb2_phy.c

--
2.39.5