From: maxime.ripard@free-electrons.com (Maxime Ripard)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 4/5] ARM: dts: sun8i: Add pwm-backlight device for A23/A33 Q8 format tablets
Date: Tue, 22 Sep 2015 16:44:01 +0200 [thread overview]
Message-ID: <20150922144401.GE4684@lukather> (raw)
In-Reply-To: <1442752251-20744-5-git-send-email-hdegoede@redhat.com>
On Sun, Sep 20, 2015 at 08:30:50AM -0400, Hans de Goede wrote:
> From: Chen-Yu Tsai <wens@csie.org>
>
> The LCD backlight on the A23/A33 Q8 format tablets is enabled
> with a GPIO controlled regulator, and brightness controlled with
> the SoC's PWM controller.
>
> The backlight is powered from the AXP223 PMIC's DC1SW output,
> which is not supported yet. A proper bootloader is required
> to enable it.
>
> The brightness levels are arbitrary. The FEX files do not have
> such information. As such, actual brightness levels may differ
> from device to device.
>
> Signed-off-by: Chen-Yu Tsai <wens@csie.org>
> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Applied, thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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WARNING: multiple messages have this Message-ID (diff)
From: Maxime Ripard <maxime.ripard-wi1+55ScJUtKEb57/3fJTNBPR1lH4CV8@public.gmane.org>
To: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Cc: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
devicetree <devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
linux-sunxi-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Subject: Re: [PATCH 4/5] ARM: dts: sun8i: Add pwm-backlight device for A23/A33 Q8 format tablets
Date: Tue, 22 Sep 2015 16:44:01 +0200 [thread overview]
Message-ID: <20150922144401.GE4684@lukather> (raw)
In-Reply-To: <1442752251-20744-5-git-send-email-hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
[-- Attachment #1: Type: text/plain, Size: 869 bytes --]
On Sun, Sep 20, 2015 at 08:30:50AM -0400, Hans de Goede wrote:
> From: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
>
> The LCD backlight on the A23/A33 Q8 format tablets is enabled
> with a GPIO controlled regulator, and brightness controlled with
> the SoC's PWM controller.
>
> The backlight is powered from the AXP223 PMIC's DC1SW output,
> which is not supported yet. A proper bootloader is required
> to enable it.
>
> The brightness levels are arbitrary. The FEX files do not have
> such information. As such, actual brightness levels may differ
> from device to device.
>
> Signed-off-by: Chen-Yu Tsai <wens-jdAy2FN1RRM@public.gmane.org>
> Signed-off-by: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Applied, thanks!
Maxime
--
Maxime Ripard, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2015-09-22 14:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-20 12:30 [PATCH 0/5] ARM: dts: sunxi: Add backlight node to q8 tablets Hans de Goede
2015-09-20 12:30 ` Hans de Goede
2015-09-20 12:30 ` [PATCH 1/5] ARM: dts: sun5i: Add PWM controller node for A13/A10s Hans de Goede
2015-09-20 12:30 ` Hans de Goede
2015-09-22 14:28 ` Maxime Ripard
2015-09-22 14:28 ` Maxime Ripard
2015-09-20 12:30 ` [PATCH 2/5] ARM: dts: sun5i: Add PWM channel 0 pinmux setting " Hans de Goede
2015-09-20 12:30 ` Hans de Goede
2015-09-22 14:29 ` Maxime Ripard
2015-09-22 14:29 ` Maxime Ripard
2015-09-20 12:30 ` [PATCH 3/5] ARM: dts: sunxi: Enable PWM controller on Q8 format tablets Hans de Goede
2015-09-20 12:30 ` Hans de Goede
2015-09-20 12:30 ` [PATCH 4/5] ARM: dts: sun8i: Add pwm-backlight device for A23/A33 " Hans de Goede
2015-09-20 12:30 ` Hans de Goede
2015-09-22 14:44 ` Maxime Ripard [this message]
2015-09-22 14:44 ` Maxime Ripard
2015-09-20 12:30 ` [PATCH 5/5] ARM: dts: sun5i: Add backlight node to sun5i-q8-common.dtsi Hans de Goede
2015-09-20 12:30 ` Hans de Goede
2015-09-20 14:46 ` Chen-Yu Tsai
2015-09-20 14:46 ` Chen-Yu Tsai
2015-09-20 15:14 ` [linux-sunxi] " Hans de Goede
2015-09-20 15:14 ` Hans de Goede
2015-09-20 15:21 ` [linux-sunxi] " Hans de Goede
2015-09-20 15:21 ` Hans de Goede
2015-12-19 10:54 ` 8001010 at gmail.com
2015-12-19 10:54 ` 8001010
2015-12-22 3:21 ` Chen-Yu Tsai
2015-12-22 3:21 ` Chen-Yu Tsai
[not found] ` <1442752251-20744-1-git-send-email-hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2015-12-21 10:56 ` [PATCH 0/5] ARM: dts: sunxi: Add backlight node to q8 tablets Silvio Pellicano
2015-12-21 12:59 ` [linux-sunxi] " Hans de Goede
2015-12-21 12:59 ` Hans de Goede
[not found] ` <5677F7CF.3050308-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
2016-01-01 0:17 ` Silvio Pellicano
2016-01-11 10:34 ` [linux-sunxi] " 8001010
2016-01-11 10:34 ` 8001010
2016-01-11 11:09 ` Hans de Goede
2016-01-11 11:09 ` Hans de Goede
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