linux-kernel - Re: [PATCH 2/2] als: tsl2550: Remove spurious check against a maximum lux value.

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Date:	Wed, 27 Jan 2010 17:25:46 +0100
From:	Jean Delvare <khali@...ux-fr.org>
To:	Jonathan Cameron <jic23@....ac.uk>
Cc:	Jonathan Cameron <kernel@...23.retrosnub.co.uk>,
	LKML <linux-kernel@...r.kernel.org>,
	Zhang Rui <rui.zhang@...el.com>, giometti@...ux.it
Subject: Re: [PATCH 2/2] als: tsl2550: Remove spurious check against a
 maximum  lux value.

On Wed, 27 Jan 2010 14:53:19 +0000, Jonathan Cameron wrote:
> 
> Signed-off-by: Jonathan Cameron <jic23@....ac.uk>

Acked-by: Jean Delvare <khali@...ux-fr.org>

> ---
> 
> As Jean Delvare observed, this check is ineffective so lets clear it out whilst
> we are working on this driver.
> 
>  drivers/als/tsl2550.c |    5 +----
>  1 files changed, 1 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/als/tsl2550.c b/drivers/als/tsl2550.c
> index b911e9c..27745a5 100644
> --- a/drivers/als/tsl2550.c
> +++ b/drivers/als/tsl2550.c
> @@ -116,8 +116,6 @@ static int tsl2550_get_adc_value(struct i2c_client *client, u8 cmd)
>   * of infrared level and visible light levels.
>   */
>  
> -#define	TSL2550_MAX_LUX		1846
> -
>  static const u8 ratio_lut[] = {
>  	100, 100, 100, 100, 100, 100, 100, 100,
>  	100, 100, 100, 100, 100, 100, 99, 99,
> @@ -187,8 +185,7 @@ static int tsl2550_calculate_lux(u8 ch0, u8 ch1)
>  	else
>  		return -EAGAIN;
>  
> -	/* LUX range check */
> -	return lux > TSL2550_MAX_LUX ? TSL2550_MAX_LUX : lux;
> +	return lux;
>  }
>  
>  /*


-- 
Jean Delvare
--
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