From: Guru Das Srinagesh <gurus@codeaurora.org>
To: linux-pwm@vger.kernel.org
Cc: "Thierry Reding" <thierry.reding@gmail.com>,
"Uwe Kleine-König" <uwe@kleine-koenig.org>,
"Subbaraman Narayanamurthy" <subbaram@codeaurora.org>,
linux-kernel@vger.kernel.org,
"Guru Das Srinagesh" <gurus@codeaurora.org>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Paul Walmsley" <paul.walmsley@sifive.com>,
linux-riscv@lists.infradead.org,
"Yash Shah" <yash.shah@sifive.com>,
"Atish Patra" <atish.patra@wdc.com>,
"Ding Xiang" <dingxiang@cmss.chinamobile.com>,
"Wesley W. Terpstra" <wesley@sifive.com>
Subject: [PATCH v9 07/11] pwm: sifive: Use 64-bit division macro
Date: Tue, 17 Mar 2020 13:05:22 -0700 [thread overview]
Message-ID: <c6a4191f4e0d75f086100f9f667e8894f6f7bef6.1584473399.git.gurus@codeaurora.org> (raw)
In-Reply-To: <cover.1584473399.git.gurus@codeaurora.org>
In-Reply-To: <cover.1584473399.git.gurus@codeaurora.org>
Since the PWM framework is switching struct pwm_args.period's datatype
to u64, prepare for this transition by using DIV64_U64_ROUND_CLOSEST to
handle a 64-bit divisor.
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: linux-riscv@lists.infradead.org
Cc: Yash Shah <yash.shah@sifive.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Ding Xiang <dingxiang@cmss.chinamobile.com>
Cc: Wesley W. Terpstra <wesley@sifive.com>
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
---
drivers/pwm/pwm-sifive.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pwm/pwm-sifive.c b/drivers/pwm/pwm-sifive.c
index cc63f9b..62de0bb 100644
--- a/drivers/pwm/pwm-sifive.c
+++ b/drivers/pwm/pwm-sifive.c
@@ -181,7 +181,7 @@ static int pwm_sifive_apply(struct pwm_chip *chip, struct pwm_device *pwm,
* consecutively
*/
num = (u64)duty_cycle * (1U << PWM_SIFIVE_CMPWIDTH);
- frac = DIV_ROUND_CLOSEST_ULL(num, state->period);
+ frac = DIV64_U64_ROUND_CLOSEST(num, state->period);
/* The hardware cannot generate a 100% duty cycle */
frac = min(frac, (1U << PWM_SIFIVE_CMPWIDTH) - 1);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2020-03-17 20:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1584473399.git.gurus@codeaurora.org>
2020-03-17 20:05 ` [PATCH v9 01/11] drm/i915: Use 64-bit division macro Guru Das Srinagesh
2020-03-18 19:08 ` Jani Nikula
2020-03-19 19:35 ` Guru Das Srinagesh
2020-03-17 20:05 ` [PATCH v9 02/11] hwmon: pwm-fan: " Guru Das Srinagesh
2020-03-17 20:05 ` [PATCH v9 03/11] ir-rx51: " Guru Das Srinagesh
2020-03-17 20:05 ` [PATCH v9 04/11] pwm: clps711x: " Guru Das Srinagesh
2020-03-17 22:22 ` Arnd Bergmann
2020-03-17 23:30 ` Guru Das Srinagesh
2020-03-18 9:49 ` Arnd Bergmann
2020-03-18 17:00 ` Guru Das Srinagesh
2020-03-18 19:38 ` Arnd Bergmann
2020-03-19 20:51 ` Guru Das Srinagesh
2020-03-17 20:05 ` [PATCH v9 05/11] pwm: pwm-imx-tpm: " Guru Das Srinagesh
2020-03-17 20:05 ` [PATCH v9 06/11] pwm: imx27: Use 64-bit division macro and function Guru Das Srinagesh
2020-03-17 20:05 ` Guru Das Srinagesh [this message]
2020-03-17 20:05 ` [PATCH v9 08/11] pwm: stm32-lp: Use %llu format specifier for period Guru Das Srinagesh
2020-03-17 20:05 ` [PATCH v9 09/11] pwm: sun4i: Use 64-bit division function Guru Das Srinagesh
2020-03-17 20:05 ` [PATCH v9 10/11] backlight: pwm_bl: " Guru Das Srinagesh
2020-03-17 20:05 ` [PATCH v9 11/11] pwm: core: Convert period and duty cycle to u64 Guru Das Srinagesh
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