pwm: twl: Really disable twl6030 PWMs

Current twl6030_pwm_disable() implementation writes TWL6030_TOGGLE3_REG
twice, the second write sets TWL6030_PWMXEN bits so the PWM clock does
not disable.
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

drivers/pwm/pwm-twl.c

@@ -263,14 +263,6 @@ static void twl6030_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
 	val |= TWL6030_PWM_TOGGLE(pwm->hwpwm, TWL6030_PWMXR);
 	val &= ~TWL6030_PWM_TOGGLE(pwm->hwpwm, TWL6030_PWMXS | TWL6030_PWMXEN);
 
-	ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, TWL6030_TOGGLE3_REG);
-	if (ret < 0) {
-		dev_err(chip->dev, "%s: Failed to read TOGGLE3\n", pwm->label);
-		goto out;
-	}
-
-	val |= TWL6030_PWM_TOGGLE(pwm->hwpwm, TWL6030_PWMXS | TWL6030_PWMXEN);
-
 	ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, val, TWL6030_TOGGLE3_REG);
 	if (ret < 0) {
 		dev_err(chip->dev, "%s: Failed to disable PWM\n", pwm->label);