From: Guru Das Srinagesh <gurus@codeaurora.org>
To: linux-pwm@vger.kernel.org
Cc: "Guru Das Srinagesh" <gurus@codeaurora.org>,
"David Airlie" <airlied@linux.ie>,
intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org,
"Thierry Reding" <thierry.reding@gmail.com>,
dri-devel@lists.freedesktop.org,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Subbaraman Narayanamurthy" <subbaram@codeaurora.org>
Subject: [PATCH v11 01/12] drm/i915: Use 64-bit division macro
Date: Thu, 19 Mar 2020 18:41:12 -0700 [thread overview]
Message-ID: <2403a87f9b6443401eac96a3c50d4beca63dcba2.1584667964.git.gurus@codeaurora.org> (raw)
In-Reply-To: <cover.1584667964.git.gurus@codeaurora.org>
In-Reply-To: <cover.1584667964.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.
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
---
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 bc14e9c..843cac1 100644
--- a/drivers/gpu/drm/i915/display/intel_panel.c
+++ b/drivers/gpu/drm/i915/display/intel_panel.c
@@ -1868,7 +1868,7 @@ static int pwm_setup_backlight(struct intel_connector *connector,
panel->backlight.min = 0; /* 0% */
panel->backlight.max = 100; /* 100% */
- panel->backlight.level = DIV_ROUND_UP(
+ panel->backlight.level = DIV_ROUND_UP_ULL(
pwm_get_duty_cycle(panel->backlight.pwm) * 100,
CRC_PMIC_PWM_PERIOD_NS);
panel->backlight.enabled = panel->backlight.level != 0;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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next prev parent reply other threads:[~2020-03-20 8:02 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-20 1:41 [PATCH v11 00/12] Convert PWM period and duty cycle to u64 Guru Das Srinagesh
2020-03-20 1:41 ` Guru Das Srinagesh [this message]
2020-03-20 1:41 ` [PATCH v11 10/12] backlight: pwm_bl: Use 64-bit division function Guru Das Srinagesh
2020-03-20 13:31 ` Lee Jones
2020-03-24 11:07 ` Lee Jones
2020-03-24 12:57 ` Uwe Kleine-König
2020-03-24 13:04 ` Daniel Thompson
2020-03-24 14:24 ` Lee Jones
2020-03-24 14:43 ` Uwe Kleine-König
2020-04-15 9:26 ` Lee Jones
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