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: [RESEND PATCH v14 01/11] drm/i915: Use 64-bit division macro
Date: Tue, 12 May 2020 17:39:35 -0700 [thread overview]
Message-ID: <4b56ba06f4f1e63cf50858d3e45c88057dc443e4.1589330178.git.gurus@codeaurora.org> (raw)
In-Reply-To: <cover.1589330178.git.gurus@codeaurora.org>
In-Reply-To: <cover.1589330178.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
WARNING: multiple messages have this Message-ID (diff)
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: [RESEND PATCH v14 01/11] drm/i915: Use 64-bit division macro
Date: Wed, 20 May 2020 15:55:54 -0700 [thread overview]
Message-ID: <4b56ba06f4f1e63cf50858d3e45c88057dc443e4.1589330178.git.gurus@codeaurora.org> (raw)
Message-ID: <20200520225554.iScndeU5IK3mnXVfAUd5NO1eIa5Us0e3VqLt95HYV8c@z> (raw)
In-Reply-To: <cover.1589330178.git.gurus@codeaurora.org>
In-Reply-To: <cover.1589330178.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:[~2020-05-13 0:40 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-13 0:39 [RESEND PATCH v14 00/11] Convert PWM period and duty cycle to u64 Guru Das Srinagesh
2020-05-04 18:50 ` Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 01/11] drm/i915: Use 64-bit division macro Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 02/11] hwmon: pwm-fan: " Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 03/11] ir-rx51: " Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 04/11] pwm: clps711x: Cast period to u32 before use as divisor Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 05/11] pwm: pwm-imx-tpm: Use 64-bit division macro Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 06/11] pwm: imx27: Use 64-bit division macro and function Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 07/11] pwm: sifive: Use 64-bit division macro Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 08/11] pwm: sun4i: Use nsecs_to_jiffies to avoid a division Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 09/11] backlight: pwm_bl: Use 64-bit division function Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 10/11] clk: pwm: " Guru Das Srinagesh
2020-05-04 18:50 ` [RESEND PATCH v14 11/11] pwm: core: Convert period and duty cycle to u64 Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 00/11] Convert PWM " Guru Das Srinagesh
2020-05-13 0:39 ` Guru Das Srinagesh [this message]
2020-05-20 22:55 ` [RESEND PATCH v14 01/11] drm/i915: Use 64-bit division macro Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 02/11] hwmon: pwm-fan: " Guru Das Srinagesh
2020-05-20 22:55 ` Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 03/11] ir-rx51: " Guru Das Srinagesh
2020-05-20 22:55 ` Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 04/11] pwm: clps711x: Cast period to u32 before use as divisor Guru Das Srinagesh
2020-05-20 22:55 ` Guru Das Srinagesh
2020-05-21 10:19 ` Daniel Thompson
2020-05-21 20:25 ` Guru Das Srinagesh
2020-05-22 9:37 ` Daniel Thompson
2020-05-22 23:19 ` Guru Das Srinagesh
2020-05-23 17:08 ` Daniel Thompson
2020-05-13 0:39 ` [RESEND PATCH v14 05/11] pwm: pwm-imx-tpm: Use 64-bit division macro Guru Das Srinagesh
2020-05-20 22:55 ` Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 06/11] pwm: imx27: Use 64-bit division macro and function Guru Das Srinagesh
2020-05-20 22:55 ` Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 07/11] pwm: sifive: Use 64-bit division macro Guru Das Srinagesh
2020-05-20 22:56 ` Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 08/11] pwm: sun4i: Use nsecs_to_jiffies to avoid a division Guru Das Srinagesh
2020-05-20 22:56 ` Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 09/11] backlight: pwm_bl: Use 64-bit division function Guru Das Srinagesh
2020-05-20 22:56 ` Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 10/11] clk: pwm: " Guru Das Srinagesh
2020-05-20 22:56 ` Guru Das Srinagesh
2020-05-13 0:39 ` [RESEND PATCH v14 11/11] pwm: core: Convert period and duty cycle to u64 Guru Das Srinagesh
2020-05-20 22:56 ` Guru Das Srinagesh
2020-05-20 22:55 ` [RESEND PATCH v14 00/11] Convert PWM " Guru Das Srinagesh
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