{
struct pwm_device *pwm;
- /* flags in the third cell are optional */
- if (args->args_count < 2)
+ /* period in the second cell and flags in the third cell are optional */
+ if (args->args_count < 1)
return ERR_PTR(-EINVAL);
if (args->args[0] >= chip->npwm)
if (IS_ERR(pwm))
return pwm;
- pwm->args.period = args->args[1];
- pwm->args.polarity = PWM_POLARITY_NORMAL;
+ if (args->args_count > 1)
+ pwm->args.period = args->args[1];
+ pwm->args.polarity = PWM_POLARITY_NORMAL;
if (args->args_count > 2 && args->args[2] & PWM_POLARITY_INVERTED)
pwm->args.polarity = PWM_POLARITY_INVERSED;
{
struct pwm_device *pwm;
- /* validate that one cell is specified, optionally with flags */
- if (args->args_count != 1 && args->args_count != 2)
- return ERR_PTR(-EINVAL);
-
pwm = pwm_request_from_chip(chip, 0, NULL);
if (IS_ERR(pwm))
return pwm;
- pwm->args.period = args->args[0];
- pwm->args.polarity = PWM_POLARITY_NORMAL;
+ if (args->args_count > 1)
+ pwm->args.period = args->args[0];
- if (args->args_count == 2 && args->args[1] & PWM_POLARITY_INVERTED)
+ pwm->args.polarity = PWM_POLARITY_NORMAL;
+ if (args->args_count > 1 && args->args[1] & PWM_POLARITY_INVERTED)
pwm->args.polarity = PWM_POLARITY_INVERSED;
return pwm;