This adds support PWM EMIOS for NXP S32Z SoC, both PWM pulse
generate and pulse capture are supported
Signed-off-by: Dat Nguyen Duy <dat.nguyenduy@nxp.com>
Removing period, duty and polarity configuration from
channel devicetree. At boot time, only minimal setup like
pinctrl, prescaler, etc should be initialized. PWM signal
is produced by using pwm_set* API
Also after this change, PWM period, duty are changed at the
next counter period boundary
Signed-off-by: Dat Nguyen Duy <dat.nguyenduy@nxp.com>
This introduces pwm capture shim driver for NXP S32 EMIOS,
the driver uses SAIC mode that is supported for all channels,
to capture the counter value on each edge for period/pulse
measurement
Signed-off-by: Dat Nguyen Duy <dat.nguyenduy@nxp.com>
This prepares support pwm capture APIs by extended current pwm
shim driver but use a differrence hal component:
- Introduce a Kconfig options that will be set when PWM pulse
generation API is used, it is also used to select the hal
component. Guarding current code inside this Kconfig option
- Increase #pwm-cells to 3, flags is supported for PWM capture
- Do not require duty-cycle and polarity be set in dt, PWM
capture doesn't need it.
- Rename emum value for pwm-mode to keep only key information
- Add preprocessor in case no channel is configured for generate
PWM output, to avoid warning when build
Signed-off-by: Dat Nguyen Duy <dat.nguyenduy@nxp.com>
This introduces PWM driver with supporting PWM output
APIs based on NXP S32 EMIOS peripheral. This supports
three mode: OPWFMB, OPWMCB and OPWMB.
OPWFMB uses internal counter, the new period and duty
cycle takes effect immediately.
OPWMCB and OPWMB use external counter as timebase, changing
PWM period at runtime will impact to all channels share the
same timebase. Also the new period and duty cycle take effect
in next period boundary of the timebase
Signed-off-by: Dat Nguyen Duy <dat.nguyenduy@nxp.com>
