Re: [PATCH v5 3/5] iio: amplifiers: hmc425a: move conversion logic

From: Jonathan Cameron
Date: Sat Feb 24 2024 - 12:44:21 EST


On Tue, 20 Feb 2024 17:34:49 +0200
Dumitru Ceclan <mitrutzceclan@xxxxxxxxx> wrote:

> Move gain-dB<->code conversion logic from read_raw and write_raw to
> chip_info callbacks.
>
> Signed-off-by: Dumitru Ceclan <mitrutzceclan@xxxxxxxxx>

I've made a small tweak whilst applying this one.

> @@ -100,36 +155,15 @@ static int hmc425a_write_raw(struct iio_dev *indio_dev,
> int val2, long mask)
> {

> mutex_lock(&st->lock);
> switch (mask) {
> case IIO_CHAN_INFO_HARDWAREGAIN:
> + ret = gain_dB_to_code(st, val, val2, &code);
> + if (ret)
> + break;
> st->gain = code;
> -
Check your patches for unrelated white space changes.
They make things a little less reviewable and they create
noise in the history etc.

If you want to tidy up whitespace, a single patch just doing that
is the way to go.

> ret = hmc425a_write(indio_dev, st->gain);
> break;
> default:
> @@ -189,6 +223,8 @@ static struct hmc425a_chip_info hmc425a_chip_info_tbl[] = {
> .gain_min = -31500,
> .gain_max = 0,
> .default_gain = -0x40, /* set default gain -31.5db*/