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

Romain Perier
2022-09-07T13:12:56Z

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

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2.35.1