linux-kernel - Re: [PATCH] ds2782_battery: add support for ds2786 battery gas gauge

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Message-ID: <20100422071437.GA32489@oksana.dev.rtsoft.ru>
Date:	Thu, 22 Apr 2010 11:14:38 +0400
From:	Anton Vorontsov <cbouatmailru@...il.com>
To:	Mike Rapoport <mike@...pulab.co.il>
Cc:	Ryan Mallon <ryan@...ewatersys.com>, linux-kernel@...r.kernel.org,
	Yulia Vilensky <vilensky@...pulab.co.il>
Subject: Re: [PATCH] ds2782_battery: add support for ds2786 battery gas
 gauge

Hi,

On Thu, Apr 22, 2010 at 09:52:52AM +0300, Mike Rapoport wrote:
> From: Yulia Vilensky <vilensky@...pulab.co.il>
> 
> Signed-off-by: Yulia Vilensky <vilensky@...pulab.co.il>
> Signed-off-by: Mike Rapoport <mike@...pulab.co.il>
> ---

Thanks for the patch, looks good overall. Few comments below.

[...]
> +struct ds278x_battery_ops {
> +	int	(*get_temp)(struct ds278x_info *info, int *temp);
> +	int	(*get_current)(struct ds278x_info *info, int *current_uA);
> +	int	(*get_voltage)(struct ds278x_info *info, int *voltage_uA);
> +	int	(*get_capacity)(struct ds278x_info *info, int *capacity_uA);
> +

Unneeded empty line.

[...]
>  
> -	info->battery.name = kasprintf(GFP_KERNEL, "ds2782-%d", num);
> +	info->battery.name = kasprintf(GFP_KERNEL, "ds278x-%d", num);

I'm a bit worried about this, as this will change sysfs stuff.
I tend to think that this won't cause any real issues, but just
to be on a safe side, can we change that to
kasprintf(GFP_KERNEL, "%s-%d", client->name, num); ?

>  	if (!info->battery.name) {
>  		ret = -ENOMEM;
>  		goto fail_name;
> @@ -277,7 +399,10 @@ static int ds2782_battery_probe(struct i2c_client *client,
>  
>  	i2c_set_clientdata(client, info);
>  	info->client = client;
> -	ds2782_power_supply_init(&info->battery);
> +	info->id = num;
> +	info->ops  = &ds278x_ops[id->driver_data];
> +	info->rsns = *((int *)info->client->dev.platform_data);

Please introduce 'struct ds278x_platform_data {int rsns;};'
for this. Place it into include/linux/ds2782_battery.h.

Thanks!

-- 
Anton Vorontsov
email: cbouatmailru@...il.com
irc://irc.freenode.net/bd2
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