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Message-ID: <20170208125324.w3udiu2jxrwf2rld@dell>
Date: Wed, 8 Feb 2017 12:53:24 +0000
From: Lee Jones <lee.jones@...aro.org>
To: Olimpiu Dejeu <olimpiu@...ticsand.com>, daniel.thompson@...aro.org
Cc: robh@...nel.org, linux-kernel@...r.kernel.org,
linux-fbdev@...r.kernel.org, devicetree@...r.kernel.org,
jingoohan1@...il.com, bdodge@...ticsand.com, joe@...ches.com,
medasaro@...ticsand.com
Subject: Re: [PATCH v4 2/2] backlight arcxcnn devicetree bindings for
ArcticSand
Cc'ing Daniel Thompson, the new Maintainer.
On Fri, 27 Jan 2017, Olimpiu Dejeu wrote:
> backlight: Add devicetree bindings for the Arctic Sand backlight driver
> This patch provides devicetree bindings for the Arctic Sand
> driver submitted in the previous patch
> Acked-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Olimpiu Dejeu <olimpiu@...ticsand.com>
> ---
>
> v3 => v4:
> - Added spaces for increased readability per Lee Jones
> v2 => v3:
> - Version updated to match other patch in set. No other changes.
> v1 => v2:
> - Version updated to match other patch in set. No other changes.
>
> .../bindings/leds/backlight/arcxcnn_bl.txt | 31 ++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt
>
> diff --git a/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt b/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt
> new file mode 100644
> index 0000000..ecb7731
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/leds/backlight/arcxcnn_bl.txt
> @@ -0,0 +1,31 @@
> +Binding for ArcticSand arc2c0608 LED driver
> +
> +Required properties:
> +- compatible: should be "arc,arc2c0608"
> +- reg: slave address
> +
> +Optional properties:
> +- default-brightness: brightness value on boot, value from: 0-4095
> +- label: The name of the backlight device
> + See Documentation/devicetree/bindings/leds/common.txt
> +- led-sources: List of enabled channels from 0 to 5.
> + See Documentation/devicetree/bindings/leds/common.txt
> +
> +- arc,led-config-0: setting for register ILED_CONFIG_0
> +- arc,led-config-1: setting for register ILED_CONFIG_1
> +- arc,dim-freq: PWM mode frequence setting (bits [3:0] used)
> +- arc,comp-config: setting for register CONFIG_COMP
> +- arc,filter-config: setting for register FILTER_CONFIG
> +- arc,trim-config: setting for register IMAXTUNE
> +
> +Example:
> +
> +arc2c0608@30 {
> + compatible = "arc,arc2c0608";
> + reg = <0x30>;
> + default-brightness = <500>;
> + label = "lcd-backlight";
> + linux,default-trigger = "backlight";
> + led-sources = <0 1 2 5>;
> +};
> +
--
Lee Jones
Linaro STMicroelectronics Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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