linux-kernel - [PATCH v2 0/5] Add PWM for MStar SoCs

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Date:   Wed,  7 Sep 2022 15:12:36 +0200
From:   Romain Perier <romain.perier@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Lee Jones <lee.jones@...aro.org>,
        Daniel Palmer <daniel@...f.com>,
        Romain Perier <romain.perier@...il.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 0/5] Add PWM for MStar SoCs

This patches series adds a new driver for the PWM found in the Mstar
MSC313e SoCs and newer. It adds a basic pwm driver, the corresponding
devicetree bindings and its documentation.

Changes since v1:
- Fixed commit message for the dt-bindings doc
- Removed "OneOf" from the dt-bindings doc
- Re-ordered alphabetically in Kconfig and remove
  unseless empty lines
- Explain and adds comment in _writecounter() (hw
  constrainst)
- Reworked the msc313e_pwm_config() function
- Fixed clk handling
- Removed extra callbacks, only keep .apply and .get_state
- Implement .get_state completly, this fixes the driver with PWM_DEBUG
  (the whole driver has been tested with PWM_DEBUG).
- Dropped useless lines in _probe
- I have kept regmap_field() because it is more clean and helpful, it
  avoids to do too much of offset and mask and shift all over the place.

Daniel Palmer (1):
  pwm: Add support for the MSTAR MSC313 PWM

Romain Perier (4):
  dt-bindings: pwm: Add Mstar MSC313e PWM devicetree bindings
    documentation
  ARM: dts: mstar: Add pwm device node to infinity
  ARM: dts: mstar: Add pwm device node to infinity3
  ARM: dts: mstar: Add pwm device node to infinity2m

 .../bindings/pwm/mstar,msc313e-pwm.yaml       |  46 +++
 MAINTAINERS                                   |   1 +
 arch/arm/boot/dts/mstar-infinity.dtsi         |  10 +
 arch/arm/boot/dts/mstar-infinity2m.dtsi       |   8 +
 arch/arm/boot/dts/mstar-infinity3.dtsi        |  10 +
 drivers/pwm/Kconfig                           |  10 +
 drivers/pwm/Makefile                          |   1 +
 drivers/pwm/pwm-msc313e.c                     | 269 ++++++++++++++++++
 8 files changed, 355 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pwm/mstar,msc313e-pwm.yaml
 create mode 100644 drivers/pwm/pwm-msc313e.c

-- 
2.35.1