[PATCH v12 02/11] hwmon: pwm-fan: Use 64-bit division macro

* [PATCH v12 02/11] hwmon: pwm-fan: Use 64-bit division macro
       [not found] <cover.1586414867.git.gurus@codeaurora.org>
@ 2020-04-09  6:52 ` Guru Das Srinagesh
  0 siblings, 0 replies; only message in thread
From: Guru Das Srinagesh @ 2020-04-09  6:52 UTC (permalink / raw)
  To: linux-pwm
  Cc: Thierry Reding, Uwe Kleine-König, Subbaraman Narayanamurthy,
	David Collins, linux-kernel, Guru Das Srinagesh, Kamil Debski,
	Bartlomiej Zolnierkiewicz, Jean Delvare, Guenter Roeck,
	Liam Girdwood, Mark Brown, linux-hwmon

Since the PWM framework is switching struct pwm_args.period's datatype
to u64, prepare for this transition by using DIV_ROUND_UP_ULL to handle
a 64-bit dividend.

Cc: Kamil Debski <kamil@wypas.org>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Jean Delvare <jdelvare@suse.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: linux-hwmon@vger.kernel.org

Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/pwm-fan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pwm-fan.c b/drivers/hwmon/pwm-fan.c
index 30b7b3e..17bb642 100644
--- a/drivers/hwmon/pwm-fan.c
+++ b/drivers/hwmon/pwm-fan.c
@@ -447,7 +447,7 @@ static int pwm_fan_resume(struct device *dev)
 		return 0;
 
 	pwm_get_args(ctx->pwm, &pargs);
-	duty = DIV_ROUND_UP(ctx->pwm_value * (pargs.period - 1), MAX_PWM);
+	duty = DIV_ROUND_UP_ULL(ctx->pwm_value * (pargs.period - 1), MAX_PWM);
 	ret = pwm_config(ctx->pwm, duty, pargs.period);
 	if (ret)
 		return ret;
-- 
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a Linux Foundation Collaborative Project


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