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[00/13] Qualcomm platform USB support

Message ID 20240131-b4-qcom-livetree-v1-0-4071c0787db0@linaro.org
Headers show
Series Qualcomm platform USB support | expand

Message

Caleb Connolly Jan. 31, 2024, 3:16 p.m. UTC 
This series enables USB on Qualcomm SDM845 platforms and lays the
foundation for future SoCs as well.

It introduces two new high-speed PHY drivers, one for SDM845 and one for
an upcoming platform. The SDM845 clock driver gains support for
configuring the USB clocks, and the GPIO driver is updated to use .set_flags
which fixes a strange bug where GPIOs would also be configured as input.

Support for super-speed USB modes is not currently available, however
configuring the device to be high-speed only requires modifications to
DT.

To improve compatibility with upstream DT, we switch Qualcomm platforms
over to OF_LIVE and apply fixups to the tree to remove references to the
super-speed phy, as well as configure the Qualcomm glue for high-speed
only mode.

The db845c requires a vbus-supply to be hooked up for its usb type-A
port. A U-Boot dtsi file is added to configure this.

With these patches, it is now also possible to run U-Boot on some SDM845
phones like the OnePlus 6 using a dtb from Linux, and access the U-Boot
shell via the CDC ACM USB serial gadget.

This series depends on the ("Qualcomm generic board support") series [1]
switching to upstream DT, as well as the ("Qualcomm DWC3 USB support")
series [2]. A feature branch based on qcom-next with the necessary
dependencies for testing the Dragonboard845c can be found at [3].

I think most of these can go through the Qualcomm tree, but I'm not
exactly sure. I'd appreciate any suggestions on if/how to split this
series up further.

[1]: https://lore.kernel.org/u-boot/20240130-b4-qcom-common-target-v3-0-e523cbf9e556@linaro.org/
[2]: https://lore.kernel.org/u-boot/20240131-b4-qcom-usb-v1-0-6438b2a2285e@linaro.org/
[3]: https://git.codelinaro.org/linaro/qcomlt/u-boot/-/tree/b4/dwc3-qcom

---
Bhupesh Sharma (2):
      phy: qcom: add Qualcomm QUSB2 USB PHY driver
      phy: qcom: Add USB HS 7nm PHY driver

Caleb Connolly (11):
      mailmap: update Bhupesh's email address
      clk/qcom: use offsets for RCG registers
      clk/qcom: add gdsc_enable helper
      clk/qcom: sdm845: add USB clocks
      gpio: msm_gpio: add .set_flags op
      serial: msm-geni: support livetree
      mach-snapdragon: fixup USB nodes
      dts: sdm845-db845c: add u-boot fixups
      qcom_defconfig: regenerate with savedefconfig
      qcom_defconfig: enable livetree
      qcom_defconfig: enable USB

 .mailmap                               |   1 +
 arch/arm/dts/sdm845-db845c-u-boot.dtsi |   8 +
 arch/arm/mach-snapdragon/board.c       |  88 +++++++
 configs/qcom_defconfig                 |  22 +-
 drivers/clk/qcom/clock-apq8016.c       |  39 +--
 drivers/clk/qcom/clock-apq8096.c       |  28 +-
 drivers/clk/qcom/clock-qcom.c          |  40 ++-
 drivers/clk/qcom/clock-qcom.h          |  20 +-
 drivers/clk/qcom/clock-qcs404.c        | 121 ++-------
 drivers/clk/qcom/clock-sdm845.c        |  45 ++--
 drivers/gpio/msm_gpio.c                |  21 +-
 drivers/phy/qcom/Kconfig               |  15 ++
 drivers/phy/qcom/Makefile              |   2 +
 drivers/phy/qcom/phy-qcom-qusb2.c      | 468 +++++++++++++++++++++++++++++++++
 drivers/phy/qcom/phy-qcom-usb-hs-7nm.c | 295 +++++++++++++++++++++
 drivers/serial/serial_msm_geni.c       |  13 +
 16 files changed, 1017 insertions(+), 209 deletions(-)
---
base-commit: b5195aca8b5b30071fda8e60bb56013032e06d18

// Caleb (they/them)