linux-kernel - [PATCH v9 03/11] ir-rx51: Use 64-bit division macro

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Message-Id: <f57ccf7a30d2af5111f979947100ec57c8fc5979.1584473399.git.gurus@codeaurora.org>
Date:   Tue, 17 Mar 2020 13:05:18 -0700
From:   Guru Das Srinagesh <gurus@...eaurora.org>
To:     linux-pwm@...r.kernel.org
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Uwe Kleine-König <uwe@...ine-koenig.org>,
        Subbaraman Narayanamurthy <subbaram@...eaurora.org>,
        linux-kernel@...r.kernel.org,
        Guru Das Srinagesh <gurus@...eaurora.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Richard Fontana <rfontana@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Kate Stewart <kstewart@...uxfoundation.org>,
        Allison Randal <allison@...utok.net>,
        linux-media@...r.kernel.org
Subject: [PATCH v9 03/11] ir-rx51: Use 64-bit division macro

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

Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: Richard Fontana <rfontana@...hat.com>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: Kate Stewart <kstewart@...uxfoundation.org>
Cc: Allison Randal <allison@...utok.net>
Cc: linux-media@...r.kernel.org

Signed-off-by: Guru Das Srinagesh <gurus@...eaurora.org>
Acked-by: Sean Young <sean@...s.org>
---
 drivers/media/rc/ir-rx51.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/rc/ir-rx51.c b/drivers/media/rc/ir-rx51.c
index 8574eda..9a5dfd7 100644
--- a/drivers/media/rc/ir-rx51.c
+++ b/drivers/media/rc/ir-rx51.c
@@ -241,7 +241,8 @@ static int ir_rx51_probe(struct platform_device *dev)
 	}
 
 	/* Use default, in case userspace does not set the carrier */
-	ir_rx51.freq = DIV_ROUND_CLOSEST(pwm_get_period(pwm), NSEC_PER_SEC);
+	ir_rx51.freq = DIV_ROUND_CLOSEST_ULL(pwm_get_period(pwm),
+			NSEC_PER_SEC);
 	pwm_put(pwm);
 
 	hrtimer_init(&ir_rx51.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-- 
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