linux-kernel - Re: [PATCH] hwmon: lm63: Add support for the NatSemi LM96163.

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Date:	Mon, 7 Nov 2011 08:49:26 -0800
From:	Guenter Roeck <guenter.roeck@...csson.com>
To:	Thierry Reding <thierry.reding@...onic-design.de>
CC:	Jean Delvare <khali@...ux-fr.org>,
	"lm-sensors@...sensors.org" <lm-sensors@...sensors.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] hwmon: lm63: Add support for the NatSemi LM96163.

Hi,

On Mon, 2011-11-07 at 05:20 -0500, Thierry Reding wrote:
> Signed-off-by: Thierry Reding <thierry.reding@...onic-design.de>
> ---
>  drivers/hwmon/lm63.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/hwmon/lm63.c b/drivers/hwmon/lm63.c
> index 508cb29..94e373c 100644
> --- a/drivers/hwmon/lm63.c
> +++ b/drivers/hwmon/lm63.c
> @@ -483,7 +483,7 @@ static int lm63_detect(struct i2c_client *new_client,
>  		return -ENODEV;
>  	}
>  
> -	if (chip_id == 0x41 && address == 0x4c)
> +	if ((chip_id == 0x41 || chip_id == 0x49) && address == 0x4c)
>  		strlcpy(info->type, "lm63", I2C_NAME_SIZE);
>  	else if (chip_id == 0x51 && (address == 0x18 || address == 0x4e))
>  		strlcpy(info->type, "lm64", I2C_NAME_SIZE);

Minor - the new chip should be mentioned in drivers/hwmon/Kconfig and in
Documentation/hwmon/lm63.

My main concern is that LM96163 supports a high resolution PWM mode.
Since that mode is much more convenient than the LM63-compatible mode, I
think it is likely to be enabled in designs using LM96163, and it should
be supported by the driver if we add support for LM96163.

Thanks,
Guenter


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