hwmon: (pwm-fan) Update the duty cycle inorder to control the pwm-fan

[firefly-linux-kernel-4.4.55.git] / drivers / hwmon / pwm-fan.c

diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 31d793bd7b122f5006694ea0ce23d26b067f3359..2d9a712699ff5d541e831629834b23882b4fa606 100644 (file)
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -47,23 +47,20 @@ static int  __set_pwm(struct pwm_fan_ctx *ctx, unsigned long pwm)
        if (ctx->pwm_value == pwm)
                goto exit_set_pwm_err;
 
-       if (pwm == 0) {
-               pwm_disable(ctx->pwm);
-               goto exit_set_pwm;
-       }
-
        duty = DIV_ROUND_UP(pwm * (ctx->pwm->period - 1), MAX_PWM);
        ret = pwm_config(ctx->pwm, duty, ctx->pwm->period);
        if (ret)
                goto exit_set_pwm_err;
 
+       if (pwm == 0)
+               pwm_disable(ctx->pwm);
+
        if (ctx->pwm_value == 0) {
                ret = pwm_enable(ctx->pwm);
                if (ret)
                        goto exit_set_pwm_err;
        }
 
-exit_set_pwm:
        ctx->pwm_value = pwm;
 exit_set_pwm_err:
        mutex_unlock(&ctx->lock);