return value of pwm_rpi_get_clkdiv contains implicit conversions
from 'float' to 'double', triggered by floating-point operations
involving mixed data types.
Signed-off-by: Jannis Ruellmann <j.ruellmann@kunbus.com>
pwm_set_wrap() sets the TOP value, not the number of cycles.
Counter will run from 0 to TOP inclusive, generating TOP + 1 cycles.
To get n cycles, we need to set TOP to (n - 1).
The wrong setting made it impossible to achieve 100 % duty cycle, as
there was always one extra cycle.
Fixes: 7e0fff24c7 ("drivers: pwm: add pwm driver for rpi_pico")
Signed-off-by: Oliver Barta <o.barta89@gmail.com>
pwm_set_chan_level uses slice channels A(=0) or B(=1) and not Zephyr
channel (0..15). So PWM doesn't work for channels > 1. There is already
a function (pwm_rpi_channel_to_pico_channel) which does the right thing,
but it isn't used for pwm_set_chan_level.
Signed-off-by: Jan Hilsdorf <jan.hilsdorf@gmail.com>
