From: Jani Nikula <jani.nikula@linux.intel.com>
To: Guru Das Srinagesh <gurus@codeaurora.org>, 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>,
"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Chris Wilson" <chris@chris-wilson.co.uk>,
"Ville Syrjälä" <ville.syrjala@linux.intel.com>,
intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>
Subject: Re: [PATCH v9 01/11] drm/i915: Use 64-bit division macro
Date: Wed, 18 Mar 2020 21:08:45 +0200 [thread overview]
Message-ID: <87h7yleb0i.fsf@intel.com> (raw)
In-Reply-To: <19661821c8eb32291e72ec091c267f915c365c52.1584473399.git.gurus@codeaurora.org>
On Tue, 17 Mar 2020, Guru Das Srinagesh <gurus@codeaurora.org> wrote:
> 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
> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
>
> Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Also ack for merging this via whichever tree you prefer; please let me
know if you want me to take this via drm-intel.
> ---
> 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;
--
Jani Nikula, Intel Open Source Graphics Center
next prev parent reply other threads:[~2020-03-18 19:08 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 [this message]
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 ` [PATCH v9 07/11] pwm: sifive: Use 64-bit division macro Guru Das Srinagesh
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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