X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=drivers%2Fpwm%2Fpwm-meson.c;h=5cd7b90872c627e29fb409968df1513226cc5fb8;hb=1a8a804a4f5d6d0ec77831ca776b8db4a7a98306;hp=16d79ca5d8f5395d763432ad8f15801a54e5b113;hpb=d8763154455e92a2ffed256e48fa46bb35ef3bdf;p=tomoyo%2Ftomoyo-test1.git

diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
index 16d79ca5d8f5..5cd7b90872c6 100644
--- a/drivers/pwm/pwm-meson.c
+++ b/drivers/pwm/pwm-meson.c
@@ -162,6 +162,12 @@ static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm,
 	duty = state->duty_cycle;
 	period = state->period;
 
+	/*
+	 * Note this is wrong. The result is an output wave that isn't really
+	 * inverted and so is wrongly identified by .get_state as normal.
+	 * Fixing this needs some care however as some machines might rely on
+	 * this.
+	 */
 	if (state->polarity == PWM_POLARITY_INVERSED)
 		duty = period - duty;
 
@@ -358,6 +364,8 @@ static int meson_pwm_get_state(struct pwm_chip *chip, struct pwm_device *pwm,
 		state->duty_cycle = 0;
 	}
 
+	state->polarity = PWM_POLARITY_NORMAL;
+
 	return 0;
 }