linux-kernel - Re: [PATCH v6 2/2] backlight arcxcnn devicetree bindings for ArcticSand

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Date:   Tue, 14 Mar 2017 10:05:47 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     Daniel Thompson <daniel.thompson@...aro.org>
Cc:     Olimpiu Dejeu <olimpiu@...ticsand.com>, 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 v6 2/2] backlight arcxcnn devicetree bindings for
 ArcticSand

On Fri, 10 Mar 2017, Daniel Thompson wrote:

> On 28/02/17 19:20, 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>
> 
> Acked-by: Daniel Thompson <daniel.thompson@...aro.org>
> 
> But...
> 
> This binding documentation patch should precede the code in the patch series
> (amoung other things this avoids transient checkpatch errors).

Right.  Also, when you send patch-sets, please sent them 'threaded'.

Please resubmit with Daniel's Ack.

> > ---
> > v5 => v6:
> > - Version updated to match other patch in set. No other changes.
> > v4 => v5:
> > - Added spaces for increased readability per Lee Jones
> > 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         | 33 ++++++++++++++++++++++
> >  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 +1,33 @@
> > +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
> > +
> > +Note: Optional properties not specified will default to values in IC EPROM
> > +
> > +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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