From: Thierry Reding <thierry.reding@gmail.com>
To: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Cc: Lee Jones <lee.jones@linaro.org>,
Daniel Thompson <daniel.thompson@linaro.org>,
Jingoo Han <jingoohan1@gmail.com>,
Rob Herring <robh+dt@kernel.org>, Pavel Machek <pavel@ucw.cz>,
Heiko Stuebner <heiko@sntech.de>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
Richard Purdie <rpurdie@rpsys.net>,
Jacek Anaszewski <jacek.anaszewski@gmail.com>,
linux-pwm@vger.kernel.org, linux-fbdev@vger.kernel.org,
linux-kernel@vger.kernel.org, groeck@chromium.org,
linux-rockchip@lists.infradead.org, kernel@collabora.com
Subject: Re: [RESEND PATCH v5 2/5] dt-bindings: pwm-backlight: add PWM delay proprieties.
Date: Mon, 19 Mar 2018 16:58:57 +0000 [thread overview]
Message-ID: <20180319165857.GC22770@ulmo> (raw)
In-Reply-To: <20180216174034.15936-2-enric.balletbo@collabora.com>
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On Fri, Feb 16, 2018 at 06:40:31PM +0100, Enric Balletbo i Serra wrote:
> Hardware needs a delay between setting an initial (non-zero) PWM and
> enabling the backlight using GPIO. The post-pwm-on-delay-ms specifies
> this delay in milli seconds. Hardware also needs a delay between disabing
> the backlight using GPIO and setting PWM value to 0. The pwm-off-delay-ms
> is this delay in milli seconds.
>
> Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
> Acked-by: Pavel Machek <pavel@ucw.cz>
> ---
> Based on the original Huang Lin <hl@rock-chips.com> work.
>
> Changes since v4:
> - Rebase on top of mainline.
> Changes since v3:
> - Replace us for ms.
> - Add Acked-by: Pavel Machek <pavel@ucw.cz>
> Changes since v2:
> - Use separate properties (Rob Herring)
> Changes since v1:
> - As suggested by Daniel Thompson
> - Do not assume power-on delay and power-off delay will be the same
>
> Documentation/devicetree/bindings/leds/backlight/pwm-backlight.txt | 6 ++++++
> 1 file changed, 6 insertions(+)
Acked-by: Thierry Reding <thierry.reding@gmail.com>
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next prev parent reply other threads:[~2018-03-19 16:58 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-16 17:40 [RESEND PATCH v5 1/5] pwm-backlight: enable/disable the PWM before/after LCD enable toggle Enric Balletbo i Serra
2018-02-16 17:40 ` [RESEND PATCH v5 2/5] dt-bindings: pwm-backlight: add PWM delay proprieties Enric Balletbo i Serra
[not found] ` <20180216174034.15936-2-enric.balletbo-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>
2018-02-19 9:22 ` Lee Jones
2018-02-19 9:56 ` Heiko Stuebner
2018-02-19 10:39 ` Lee Jones
2018-02-19 11:11 ` Daniel Thompson
2018-03-09 10:14 ` Enric Balletbo Serra
2018-03-12 9:10 ` Lee Jones
2018-03-19 16:58 ` Thierry Reding [this message]
2018-02-16 17:40 ` [RESEND PATCH v5 3/5] pwm-backlight: add support for PWM delays proprieties Enric Balletbo i Serra
2018-03-19 16:59 ` Thierry Reding
2018-02-16 17:40 ` [RESEND PATCH v5 4/5] ARM: dts: rockchip: set PWM delay backlight settings for Veyron Enric Balletbo i Serra
2018-02-16 17:40 ` [RESEND PATCH v5 5/5] ARM: dts: rockchip: set PWM delay backlight settings for Minnie Enric Balletbo i Serra
[not found] ` <20180216174034.15936-1-enric.balletbo-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>
2018-03-19 16:58 ` [RESEND PATCH v5 1/5] pwm-backlight: enable/disable the PWM before/after LCD enable toggle Thierry Reding
2018-03-19 18:28 ` Enric Balletbo i Serra
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