[PATCH v7 0/7] Add OTG mode support to Tegra USB PHY and Nexus 7

Dmitry Osipenko
2021-09-12T18:19:24Z

This series adds USB OTG mode support to the NVIDIA Tegra USB PHY driver
and Nexus 7 tablet.

Changelog:

v7: - v6 partially missed 5.15 kernel, only the power/supply patches has
been merged. Re-sending the remaining patches for 5.16. The usb/phy
patch needs ack from the subsystem maintainer.

v6: - Added r-b from Rob Herring to the OTG properties DT binding patch.

- Corrected "smb347-charger: generic regmap caching" patch, it now
sets the .num_reg_defaults_raw, initializing cache properly.

- Added new patch "smb347-charger: Add missing pin control activation",
which prevents never-enabled charging on Nexus 7.

- The "otg-fsm: Fix hrtimer list corruption" patch of v5 was already
applied to next, so it's not included anymore.

v5: - Replaced "Remove caching of charger state" patch with "Utilize
generic regmap caching" after Sebastian's notice about disabled
regmap caching.

v4: - Added r-b from Rob Herring.

- Added unevaluatedProperties into SMB binding for VBUS regulator,
which was Requested by Rob Herring.

- Added cell to nvidia,pmc phandle instead of explicit h/w ID
property. Requested by Rob Herring.

- Added stack trace to commit message and ack from Peter Chen to
OTG FSM patch.

v3: - Further improved interrupt handling in the PHY driver by removing
assumption that interrupt is enabled by the CI driver at the time
of set_wakeup() invocation, which makes this function a bit more
universal.

v2: - The PHY's interrupt is now enabled from PHY's set_wakeup() callback.
It prevents getting a spurious interrupt during the CI driver probe
time.

Dmitry Osipenko (7):
dt-bindings: phy: tegra20-usb-phy: Convert to schema
dt-bindings: phy: tegra20-usb-phy: Document properties needed for OTG
mode
soc/tegra: pmc: Expose USB regmap to all SoCs
usb: phy: tegra: Support OTG mode programming
ARM: tegra: Add new properties to USB PHY device-tree nodes
ARM: tegra: nexus7: Enable USB OTG mode
arm64: tegra132: Add new properties to USB PHY device-tree node

.../bindings/phy/nvidia,tegra20-usb-phy.txt | 74 ----
.../bindings/phy/nvidia,tegra20-usb-phy.yaml | 373 ++++++++++++++++++
arch/arm/boot/dts/tegra114.dtsi | 4 +
arch/arm/boot/dts/tegra124.dtsi | 6 +
arch/arm/boot/dts/tegra20.dtsi | 6 +
.../tegra30-asus-nexus7-grouper-common.dtsi | 25 +-
arch/arm/boot/dts/tegra30.dtsi | 6 +
arch/arm64/boot/dts/nvidia/tegra132.dtsi | 6 +
drivers/soc/tegra/pmc.c | 6 +-
drivers/usb/phy/phy-tegra-usb.c | 198 +++++++++-
include/linux/usb/tegra_usb_phy.h | 5 +
11 files changed, 625 insertions(+), 84 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.txt
create mode 100644 Documentation/devicetree/bindings/phy/nvidia,tegra20-usb-phy.yaml

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2.32.0