[patch v4 6/9] rockchip: pwm: Fix default polarity

[Rtp]

In the code, the default polarity is set to positive/positive,
which is neither normal polarity or inverted polarity. It's
only the hardware default. This leads to booting linux with
wrong polarity setting.

Update the code to use PWM_DUTY_POSTIVE | PWM_INACTIVE_NEGATIVE
by default instead.

Signed-off-by: Arnaud Patard <arnaud.pat...@rtp-net.org>
Tested-by: Peter Robinson <pbrobin...@gmail.com>
Index: u-boot/drivers/pwm/rk_pwm.c
===================================================================
--- u-boot.orig/drivers/pwm/rk_pwm.c
+++ u-boot/drivers/pwm/rk_pwm.c
@@ -147,7 +147,7 @@ static int rk_pwm_probe(struct udevice *
        priv->data = (struct rockchip_pwm_data *)dev_get_driver_data(dev);
 
        if (priv->data->supports_polarity)
-               priv->conf_polarity = PWM_DUTY_POSTIVE | PWM_INACTIVE_POSTIVE;
+               priv->conf_polarity = PWM_DUTY_POSTIVE | PWM_INACTIVE_NEGATIVE;
 
        return 0;
 }