pwm: meson: don't disable pwm when setting duty repeatedly

PD#169687: pwm: meson: don't disable pwm when setting duty repeatedly

There is an abnormally low about 20ms,when setting duty repeatedly.
Because setting the duty will disable pwm and then enable.Delete
this operation now.

Change-Id: I4bca5e61b4782da3160c14d8c73cd913d7e21db3
Signed-off-by: bichao.zheng <bichao.zheng@amlogic.com>

diff --git a/drivers/amlogic/pwm/pwm_meson.c b/drivers/amlogic/pwm/pwm_meson.c
index 3d4f99a..b2a51ff 100644 (file)
--- a/drivers/amlogic/pwm/pwm_meson.c
+++ b/drivers/amlogic/pwm/pwm_meson.c
@@ -355,7 +355,10 @@ static int meson_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
            state->duty_cycle != channel->state.duty_cycle ||
            state->polarity != channel->state.polarity) {
                if (channel->state.enabled) {
-                       meson_pwm_disable(meson, pwm->hwpwm);
+                       /*
+                        *Don't disable pwm when setting duty repeatedly
+                        *meson_pwm_disable(meson, pwm->hwpwm);
+                        */
                        channel->state.enabled = false;
                }