[PATCH v5 0/7] Tegra264 PWM support

[Mikko Perttunen]

Hello,

this adds support for the PWM controller on Tegra264. The controller
is similar to previous generations, but the register fields are
widened, the depth is made configurable, and the enable bit moves
to a different spot.

This series adds only basic support with fixed depth -- configurable
depth will come later.

Patch 1 adds device tree bindings for Tegra264 PWM (compatible
  string).

Patch 2 prefixes driver-local macros and static helpers with
  tegra_/TEGRA_ to make their scoping clear.

Patches 3 to 6 contain the PWM driver changes for Tegra264.

Patch 7 adds device tree nodes for the PWM controllers on Tegra264.

Thanks,
Mikko

---
Changes in v5:
- New patch: prefix driver-local macros and static helpers with
  tegra_/TEGRA_ (suggested by Uwe)
- Squashed the enable_reg parameterization into the "Add support for
  Tegra264" patch
- Rename pwm_readl()/pwm_writel() parameter `dev` to `pwm` to match the
  rest of the driver
- Drop an extra blank line in tegra_pwm_enable()
- Reflow the code comment text in "Add support for Tegra264" to
  fit within 80 columns
- Dropped duty_width field since it was unused.
- Rebased on latest -next.
- Link to v4: https://lore.kernel.org/r/20260331-t264-pwm-v4-0-c041659677cf@xxxxxxxxxx

Changes in v4:
- Use ULONG_MAX rather than S64_MAX to avoid overflow on 32-bit platforms
- Link to v3: https://lore.kernel.org/r/20260330-t264-pwm-v3-0-5714427d5976@xxxxxxxxxx

Changes in v3:
- Fixed device tree binding patch.
- Picked up trailers.
- Link to v2: https://lore.kernel.org/r/20260325-t264-pwm-v2-0-998d885984b3@xxxxxxxxxx

Changes in v2:
- Added device tree binding and Tegra264 device tree patches by Thierry.
- Link to v1: https://lore.kernel.org/r/20260323-t264-pwm-v1-0-4c4ff743050f@xxxxxxxxxx

---
Mikko Perttunen (4):
      pwm: tegra: Prefix driver-local macros and functions
      pwm: tegra: Modify read/write accessors for multi-register channel
      pwm: tegra: Parametrize duty and scale field widths
      pwm: tegra: Add support for Tegra264

Thierry Reding (2):
      dt-bindings: pwm: Document Tegra264 controller
      arm64: tegra: Add PWM controllers on Tegra264

Yi-Wei Wang (1):
      pwm: tegra: Avoid hard-coded max clock frequency

 .../bindings/pwm/nvidia,tegra20-pwm.yaml           |   1 +
 arch/arm64/boot/dts/nvidia/tegra264.dtsi           |  72 ++++++++++
 drivers/pwm/pwm-tegra.c                            | 155 ++++++++++++++-------
 3 files changed, 176 insertions(+), 52 deletions(-)
---
base-commit: f7af91adc230aa99e23330ecf85bc9badd9780ad
change-id: 20260303-t264-pwm-57e10d039df1