Re: [PATCH v2] power: twl4030-madc-battery: Convert to iio consumer.

From: Sebastian Reichel
Date: Wed Mar 05 2014 - 18:25:37 EST


Hi Marek,

I just have one comment:

On Wed, Mar 05, 2014 at 09:52:17PM +0100, Marek Belisko wrote:
> [...]
> -static int madc_read(int index)
> +static int madc_read(struct iio_channel *channel)
> {
> - struct twl4030_madc_request req;
> - int val;
> -
> - req.channels = index;
> - req.method = TWL4030_MADC_SW2;
> - req.type = TWL4030_MADC_WAIT;
> - req.do_avg = 0;
> - req.raw = false;
> - req.func_cb = NULL;
> -
> - val = twl4030_madc_conversion(&req);
> - if (val < 0)
> - return val;
> -
> - return req.rbuf[ffs(index) - 1];
> + int val, err;
> + err = iio_read_channel_processed(channel, &val);
> + if (err < 0) {
> + pr_info("Error:%d\n", err);

This should be "Error: %d\n" (with a space).

Apart from that you should use dev_info() or dev_err(), so that the
message is properly prefixed by the device. Currently there is no
hint where this error message is generated.

> + return err;
> + }
> + return val;
> }
> [...]

After fixing this you can add

Reviewed-By: Sebastian Reichel <sre@xxxxxxxxxx>

-- Sebastian

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