From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Wed, 19 Jul 2017 08:27:53 +0000 (+0200)
Subject: watchdog: renesas_wdt: don't round closest with get_timeleft
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=1c1b2434017206b612764fad1820b6dd48cb9e92;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

watchdog: renesas_wdt: don't round closest with get_timeleft

We should never return more time left than there actually is. So, switch
to a plain divider instead of DIV_ROUND_CLOSEST.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---

diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c
index 8437dd521532..3763437cd0b0 100644
--- a/drivers/watchdog/renesas_wdt.c
+++ b/drivers/watchdog/renesas_wdt.c
@@ -92,7 +92,7 @@ static unsigned int rwdt_get_timeleft(struct watchdog_device *wdev)
 	struct rwdt_priv *priv = watchdog_get_drvdata(wdev);
 	u16 val = readw_relaxed(priv->base + RWTCNT);
 
-	return DIV_ROUND_CLOSEST(65536 - val, priv->clks_per_sec);
+	return (65536 - val) / priv->clks_per_sec;
 }
 
 static const struct watchdog_info rwdt_ident = {