[00/12] Tegra XHCI controller ELPG support

Message

JC Kuo Aug. 28, 2020, 1:10 a.m. UTC

Tegra XHCI controler can be placed in ELPG (Engine Level PowerGated)
state for power saving when all of the connected USB devices are in
suspended state. This patch series includes clk, phy and pmc changes
that are required for properly place controller in ELPG and bring
controller out of ELPG.

JC Kuo (12):
  clk: tegra: Add PLLE HW power sequencer control
  clk: tegra: don't enable PLLE HW sequencer at init
  phy: tegra: xusb: t210: rearrange UPHY init
  phy: tegra: xusb: t210: add lane_iddq operations
  phy: tegra: xusb: add sleepwalk and suspend/resume
  soc/tegra: pmc: provide usb sleepwalk register map
  arm64: tegra210: XUSB PADCTL add "nvidia,pmc" prop
  phy: tegra: xusb: t210: support wake and sleepwalk
  phy: tegra: xusb: t186: support wake and sleepwalk
  arm64: tegra210/tegra186/tegra194: XUSB PADCTL irq
  usb: host: xhci-tegra: unlink power domain devices
  xhci: tegra: enable ELPG for runtime/system PM

 arch/arm64/boot/dts/nvidia/tegra186.dtsi |    1 +
 arch/arm64/boot/dts/nvidia/tegra194.dtsi |    1 +
 arch/arm64/boot/dts/nvidia/tegra210.dtsi |    2 +
 drivers/clk/tegra/clk-pll.c              |   12 -
 drivers/clk/tegra/clk-tegra210.c         |   51 +
 drivers/phy/tegra/xusb-tegra186.c        |  656 ++++++++
 drivers/phy/tegra/xusb-tegra210.c        | 1953 +++++++++++++++++-----
 drivers/phy/tegra/xusb.c                 |   86 +-
 drivers/phy/tegra/xusb.h                 |   23 +-
 drivers/soc/tegra/pmc.c                  |   89 +
 drivers/usb/host/xhci-tegra.c            |  577 +++++--
 include/linux/clk/tegra.h                |    2 +
 include/linux/phy/tegra/xusb.h           |   13 +
 13 files changed, 2957 insertions(+), 509 deletions(-)