linux-kernel - Re: [PATCH v2] RX-51: Add missing max_current to rx51_lp5523_led

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Date:	Mon, 23 Sep 2013 15:06:31 +0200
From:	joerg Reisenweber <joerg@...nmoko.org>
To:	Pali Rohár <pali.rohar@...il.com>,
	Tony Lindgren <tony@...mide.com>
Cc:	Russell King <linux@....linux.org.uk>, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] RX-51: Add missing max_current to rx51_lp5523_led_config

On Mon 23 September 2013 14:50:12 Pali Rohár wrote:
> Hi Tony,
> 
> here is new version (v2) of patch which adding max_current values to rx51
> board data. According to joerg safe value for max_current is 100 (10 mA).
> 
> 
> RX-51: Add missing max_current to rx51_lp5523_led_config
> 
> File drivers/leds/leds-lp55xx-common.c refuse to change led_current sysfs
> attribute if value is higher than max_current specified in board file. By
> default global C variables are zero, so changing always failed. This patch
> adding missing max_current and setting it to max safe value 100 (10 mA).
> 
> Signed-off-by: Pali Rohár <pali.rohar@...il.com>
> ---
>  arch/arm/mach-omap2/board-rx51-peripherals.c |    9 +++++++++
>  1 file changed, 9 insertions(+)
> 
> diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c
> b/arch/arm/mach-omap2/board-rx51-peripherals.c index c3270c0..f6fe388
> 100644
> --- a/arch/arm/mach-omap2/board-rx51-peripherals.c
> +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
> @@ -167,38 +167,47 @@ static struct lp55xx_led_config
> rx51_lp5523_led_config[] = { .name		= "lp5523:kb1",
>  		.chan_nr	= 0,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}, {
>  		.name		= "lp5523:kb2",
>  		.chan_nr	= 1,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}, {
>  		.name		= "lp5523:kb3",
>  		.chan_nr	= 2,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}, {
>  		.name		= "lp5523:kb4",
>  		.chan_nr	= 3,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}, {
>  		.name		= "lp5523:b",
>  		.chan_nr	= 4,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}, {
>  		.name		= "lp5523:g",
>  		.chan_nr	= 5,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}, {
>  		.name		= "lp5523:r",
>  		.chan_nr	= 6,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}, {
>  		.name		= "lp5523:kb5",
>  		.chan_nr	= 7,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}, {
>  		.name		= "lp5523:kb6",
>  		.chan_nr	= 8,
>  		.led_current	= 50,
> +		.max_current	= 100,
>  	}
>  };

Reviewed and found logically and technically correct
Signed-off-by: Joerg Reisenweber <joerg AT openmoko DOT org>

/jOERG 
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