Hi Brian,
On 10/17/2017 07:57 AM, Brian Norris wrote:
This is going to be a*lot* of churn throughout the tree, if we expect
all resource consumers to do this. I think we'd want some kind of
agreement from the PM maintainers and (larger) subsystem owners before
going down this route...
And in the PWM case, pwm_get() already has the device pointer. Why can't
we just instrument it instead?
according to pwm_bl driver, we may need to take care of pwm_request() too:
pb->pwm = devm_pwm_get(&pdev->dev, NULL);
if (IS_ERR(pb->pwm) && PTR_ERR(pb->pwm) != -EPROBE_DEFER &&
!node) {
dev_err(&pdev->dev, "unable to request PWM, trying
legacy API\n");
pb->legacy = true;
pb->pwm = pwm_request(data->pwm_id, "pwm-backlight");
}
and maybe also *of_pwm_get...
maybe we can add a dummy pwm chip for those orphan pwms?
Brian
