The third optional argument of pwms is well defined as polarity and it is already used in a number of pwm drivers, so, to minimize changes in the remaining drivers which are to be updated accordingly set polarity in default of_xlate() function.
Signed-off-by: Vladimir Zapolskiy <[email protected]> Cc: Lothar Waßmann <[email protected]> Cc: Sascha Hauer <[email protected]> Cc: Thierry Reding <[email protected]> Cc: Shawn Guo <[email protected]> --- drivers/pwm/core.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c index 966497d..681d154 100644 --- a/drivers/pwm/core.c +++ b/drivers/pwm/core.c @@ -174,6 +174,13 @@ of_pwm_simple_xlate(struct pwm_chip *pc, const struct of_phandle_args *args) pwm_set_period(pwm, args->args[1]); + if (pc->of_pwm_n_cells > 2) { + if (args->args[2] & PWM_POLARITY_INVERTED) + pwm_set_polarity(pwm, PWM_POLARITY_INVERSED); + else + pwm_set_polarity(pwm, PWM_POLARITY_NORMAL); + } + return pwm; } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-pwm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
