From: Vasily Khoruzhick <anarsoul@gmail.com>
Date: Wed, 17 Oct 2018 04:56:33 +0000 (-0700)
Subject: pwm: sunxi: fix off-by-one that prevented PWM to use prescaler bypass
X-Git-Tag: v2018.11-rc3~1^2~11
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=a877d4b1aef70bbae556e156e6802b7d917546ab;p=oweals%2Fu-boot.git

pwm: sunxi: fix off-by-one that prevented PWM to use prescaler bypass

Fix off-by-one that prevented PWM driver to use prescaler bypass.
Without this change prescaler is always enabled.

Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@bootlin.com>
Reviewed-by: Jagan Teki <jagan@openedev.com>
---

diff --git a/drivers/pwm/sunxi_pwm.c b/drivers/pwm/sunxi_pwm.c
index 3c7dffdd90..baee503730 100644
--- a/drivers/pwm/sunxi_pwm.c
+++ b/drivers/pwm/sunxi_pwm.c
@@ -74,7 +74,7 @@ static int sunxi_pwm_set_config(struct udevice *dev, uint channel,
 
 	debug("%s: period_ns=%u, duty_ns=%u\n", __func__, period_ns, duty_ns);
 
-	for (prescaler = 0; prescaler < SUNXI_PWM_CTRL_PRESCALE0_MASK;
+	for (prescaler = 0; prescaler <= SUNXI_PWM_CTRL_PRESCALE0_MASK;
 	     prescaler++) {
 		if (!prescaler_table[prescaler])
 			continue;