linux-kernel - Re: [PATCH 1/1 v4] leds: Add LED driver for lm3556 chip

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Date:	Mon, 25 Jun 2012 01:20:47 +0800
From:	Bryan Wu <bryan.wu@...onical.com>
To:	Rob Landley <rob@...dley.net>
Cc:	"G.Shark Jeong" <gshark.jeong@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Daniel Jeong <daniel.jeong@...com>,
	linux-kernel@...r.kernel.org, milo kim <milo.kim@...com>,
	linux-doc@...r.kernel.org
Subject: Re: [PATCH 1/1 v4] leds: Add LED driver for lm3556 chip

On Sat, Jun 23, 2012 at 3:47 AM, Rob Landley <rob@...dley.net> wrote:
> On 06/21/2012 07:12 PM, G.Shark Jeong wrote:
>> From: "G.Shark Jeong" <gshark.jeong@...il.com>
>>
>> LM3556 :
>> The LM3556 is a 4 MHz fixed-frequency synchronous boost
>> converter plus 1.5A constant current driver for a high-current white LED.
>> Datasheet: www.national.com/ds/LM/LM3556.pdf
>>
>> Tested on OMAP4430
> ...
>> +Indicator pattern example:
>> +pattern 0: #echo 0 > sys/class/leds/indicator/pattern
>> +....
>> +pattern 3: #echo 3 > sys/class/leds/indicator/pattern
>> +
>> +Indicater brightness can be controlled through
>
> Indicator
>
>> +sys/class/leds/indicator/brightness file.
>> +
>> +Example:
>> +OFF      : #echo 0 > sys/class/leds/indicator/brightness
>> +5.86 mA  : #echo 1 > sys/class/leds/indicator/brightness
>> +........
>> +46.875mA : #echo 8 > sys/class/leds/indicator/brightness
>> +
>> +Notes
>> +-----
>> +Driver expects it is registered using the i2c_board_info mechanism.
>> +Toregister the chip at address 0x63 on specific adapter, set the platform data
>
> To register
>
>> --- a/drivers/leds/Kconfig
>> +++ b/drivers/leds/Kconfig
>> @@ -415,6 +415,14 @@ config LEDS_MAX8997
>>         This option enables support for on-chip LED drivers on
>>         MAXIM MAX8997 PMIC.
>>
>> +config LEDS_LM3556
>> +     tristate "LED support for LM3556 Chip"
>> +     depends on LEDS_CLASS && I2C
>> +     select REGMAP_I2C
>> +     help
>> +       This option enables support for LEDs connected LM3556.
>
> connected to
>
> Other than that, documentation bits Acked-by me.
>

No problem. fixed and applied to my for-next branch.

Thanks,
-- 
Bryan Wu <bryan.wu@...onical.com>
Kernel Developer    +86.186-168-78255 Mobile
Canonical Ltd.      www.canonical.com
Ubuntu - Linux for human beings | www.ubuntu.com
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