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From: Guru Das Srinagesh <gurus@codeaurora.org>
To: linux-pwm@vger.kernel.org,
	"Thierry Reding" <thierry.reding@gmail.com>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Cc: Subbaraman Narayanamurthy <subbaram@codeaurora.org>,
	David Collins <collinsd@codeaurora.org>,
	linux-kernel@vger.kernel.org, Joe Perches <joe@perches.com>,
	Stephen Boyd <sboyd@kernel.org>, Lee Jones <lee.jones@linaro.org>,
	Arnd Bergmann <arnd@arndb.de>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Guenter Roeck <linux@roeck-us.net>,
	Daniel Thompson <daniel.thompson@linaro.org>,
	Dan Carpenter <dan.carpenter@oracle.com>,
	linux-arm-kernel@lists.infradead.org,
	Guru Das Srinagesh <gurus@codeaurora.org>
Subject: [PATCH v16 06/11] pwm: imx27: Use 64-bit division macro
Date: Tue,  2 Jun 2020 15:31:11 -0700	[thread overview]
Message-ID: <fcc92b6499e8200ad6b02ab13b38e4d310afe0ba.1591135774.git.gurus@codeaurora.org> (raw)
In-Reply-To: <cover.1591136989.git.gurus@codeaurora.org>
In-Reply-To: <cover.1591135774.git.gurus@codeaurora.org>

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

Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
---
 drivers/pwm/pwm-imx27.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-imx27.c b/drivers/pwm/pwm-imx27.c
index 732a6f3..c50d453 100644
--- a/drivers/pwm/pwm-imx27.c
+++ b/drivers/pwm/pwm-imx27.c
@@ -202,7 +202,7 @@ static void pwm_imx27_wait_fifo_slot(struct pwm_chip *chip,
 	sr = readl(imx->mmio_base + MX3_PWMSR);
 	fifoav = FIELD_GET(MX3_PWMSR_FIFOAV, sr);
 	if (fifoav == MX3_PWMSR_FIFOAV_4WORDS) {
-		period_ms = DIV_ROUND_UP(pwm_get_period(pwm),
+		period_ms = DIV_ROUND_UP_ULL(pwm_get_period(pwm),
 					 NSEC_PER_MSEC);
 		msleep(period_ms);
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


  parent reply	other threads:[~2020-06-02 22:31 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-02 22:31 [PATCH v16 00/11] Convert PWM period and duty cycle to u64 Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 01/11] drm/i915: Use 64-bit division macro Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 02/11] hwmon: pwm-fan: " Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 03/11] ir-rx51: " Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 04/11] pwm: clps711x: " Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 05/11] pwm: pwm-imx-tpm: " Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 06/11] pwm: imx27: Use 64-bit division macro and function Guru Das Srinagesh
2020-07-02  7:11   ` Uwe Kleine-König
     [not found] ` <cover.1591135774.git.gurus@codeaurora.org>
2020-06-02 22:31   ` Guru Das Srinagesh [this message]
2020-06-02 22:34     ` [PATCH v16 06/11] pwm: imx27: Use 64-bit division macro Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 07/11] pwm: sifive: " Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 08/11] pwm: sun4i: Use nsecs_to_jiffies to avoid a division Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 09/11] backlight: pwm_bl: Use 64-bit division function Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 10/11] clk: pwm: " Guru Das Srinagesh
2020-06-02 22:31 ` [PATCH v16 11/11] pwm: core: Convert period and duty cycle to u64 Guru Das Srinagesh
2020-06-11 16:55 ` [PATCH v16 00/11] Convert PWM " Guru Das Srinagesh
2020-06-11 17:57   ` Lee Jones
2020-06-11 18:24   ` Thierry Reding
2020-06-11 18:31     ` Guru Das Srinagesh

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