On Wed, 5 Feb 2025 18:54:00 +0100 Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxx> wrote: > The PWM chip on PXA only has a single output. Back when the device tree > binding was defined it was considered a good idea to not pass the PWM > line index as is done for all other PWM types as it would be always zero > anyhow and so doesn't add any value. > > However for consistency reasons it is nice when all PWMs use the same > binding. For that reason let of_pwm_single_xlate() (i.e. the function > that implements the PXA behaviour) behave in the same way as > of_pwm_xlate_with_flags() for 3 (or more) parameters. With that in > place, the pxa-pwm binding can be updated to #pwm-cells = <3> without > breaking old device trees that stick to #pwm-cells = <1>. > > Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxx> > --- > drivers/pwm/core.c | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) Reviewed-by: Herve Codina <herve.codina@xxxxxxxxxxx> Best regards, Hervé
