[PATCH v8 00/13] Tegra XHCI controller ELPG support

Thierry Reding
2021-03-25T16:41:22Z

From: Thierry Reding <treding@nvidia.com>

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.

I've rebased this on v5.12-rc2 and fixed two minor issues that
checkpatch had pointed out. One of the patches compared to v7 was
already merged into v5.12, so that rebased out.

Greg, you had previously indicated[0] that you'd be willing for me to
take the USB patches through the Tegra tree to resolve the complicated
dependencies within this series, but I don't think you ever gave a
formal Acked-by. Should I take your comments to be equivalent and just
add them to the USB patches?

Vinod, as discussed earlier, please take a look and provide an Acked-by
if you're okay with me taking this through the Tegra tree for v5.13.

Thanks,
Thierry

[0]: https://lore.kernel.org/linux-tegra/YB1wxazg%2FQpRSJz6@kroah.com/

JC Kuo (13):
clk: tegra: Add PLLE HW power sequencer control
clk: tegra: Don't enable PLLE HW sequencer at init
phy: tegra: xusb: Move usb3 port init for Tegra210
phy: tegra: xusb: Rearrange UPHY init on Tegra210
phy: tegra: xusb: Add Tegra210 lane_iddq operation
phy: tegra: xusb: Add sleepwalk and suspend/resume
soc/tegra: pmc: Provide USB sleepwalk register map
dt-bindings: phy: tegra-xusb: Add nvidia,pmc prop
phy: tegra: xusb: Add wake/sleepwalk for Tegra210
phy: tegra: xusb: Tegra210 host mode VBUS control
phy: tegra: xusb: Add wake/sleepwalk for Tegra186
usb: host: xhci-tegra: Unlink power domain devices
xhci: tegra: Enable ELPG for runtime/system PM

.../phy/nvidia,tegra124-xusb-padctl.txt | 1 +
drivers/clk/tegra/clk-pll.c | 12 -
drivers/clk/tegra/clk-tegra210.c | 53 +-
drivers/phy/tegra/xusb-tegra186.c | 558 +++++-
drivers/phy/tegra/xusb-tegra210.c | 1553 ++++++++++++++---
drivers/phy/tegra/xusb.c | 92 +-
drivers/phy/tegra/xusb.h | 22 +-
drivers/soc/tegra/pmc.c | 94 +
drivers/usb/host/xhci-tegra.c | 613 +++++--
include/linux/clk/tegra.h | 4 +-
include/linux/phy/tegra/xusb.h | 10 +-
11 files changed, 2615 insertions(+), 397 deletions(-)

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2.30.2