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 01/11] drm/i915: Use 64-bit division macro
Date: Tue, 2 Jun 2020 15:31:05 -0700 [thread overview]
Message-ID: <d220cb6bf508a070affb67734d297a9d4c3ab758.1591136989.git.gurus@codeaurora.org> (raw)
In-Reply-To: <cover.1591136989.git.gurus@codeaurora.org>
In-Reply-To: <cover.1591136989.git.gurus@codeaurora.org>
Since the PWM framework is switching struct pwm_state.duty_cycle'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>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
---
drivers/gpu/drm/i915/display/intel_panel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_panel.c b/drivers/gpu/drm/i915/display/intel_panel.c
index 276f438..81547a0 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.c
+++ b/drivers/gpu/drm/i915/display/intel_panel.c
@@ -1920,7 +1920,7 @@ static int pwm_setup_backlight(struct intel_connector *connector,
return retval;
}
- level = DIV_ROUND_UP(pwm_get_duty_cycle(panel->backlight.pwm) * 100,
+ level = DIV_ROUND_UP_ULL(pwm_get_duty_cycle(panel->backlight.pwm) * 100,
CRC_PMIC_PWM_PERIOD_NS);
panel->backlight.level =
intel_panel_compute_brightness(connector, level);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2020-06-02 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 ` Guru Das Srinagesh [this message]
2020-06-02 22:31 ` [PATCH v16 02/11] hwmon: pwm-fan: Use 64-bit division macro 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 ` [PATCH v16 06/11] pwm: imx27: Use 64-bit division macro Guru Das Srinagesh
2020-06-02 22:34 ` 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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