linux-kernel - Re: [PATCH RFC v3 2/2] iio: adc: ad7173: add openwire detection support for single conversions

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <658b7ff2-7019-4a7e-bd0a-58467032978a@baylibre.com>
Date: Sat, 18 Jan 2025 11:25:17 -0600
From: David Lechner <dlechner@...libre.com>
To: Guillaume Ranquet <granquet@...libre.com>,
 Lars-Peter Clausen <lars@...afoo.de>,
 Michael Hennerich <Michael.Hennerich@...log.com>,
 Jonathan Cameron <jic23@...nel.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH RFC v3 2/2] iio: adc: ad7173: add openwire detection
 support for single conversions

On 1/16/25 9:01 AM, Guillaume Ranquet wrote:
> Some chips of the ad7173 family supports open wire detection.
> 
> Generate a level fault event whenever an external source is disconnected
> from the system input on single conversions.
> 
> Signed-off-by: Guillaume Ranquet <granquet@...libre.com>
> ---

...

> @@ -1375,6 +1523,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
>  		chan_st_priv->cfg.bipolar = false;
>  		chan_st_priv->cfg.input_buf = st->info->has_input_buf;
>  		chan_st_priv->cfg.ref_sel = AD7173_SETUP_REF_SEL_INT_REF;
> +		chan_st_priv->cfg.openwire_comp_chan = -1;

		^

>  		st->adc_mode |= AD7173_ADC_MODE_REF_EN;
>  		if (st->info->data_reg_only_16bit)
>  			chan_arr[chan_index].scan_type = ad4113_scan_type;
> @@ -1442,6 +1591,7 @@ static int ad7173_fw_parse_channel_config(struct iio_dev *indio_dev)
>  		chan_st_priv->chan_reg = chan_index;
>  		chan_st_priv->cfg.input_buf = st->info->has_input_buf;
>  		chan_st_priv->cfg.odr = 0;
> +		chan_st_priv->cfg.openwire_comp_chan = -1;

		^

Looks like the same line added twice in the same function.

>  
>  		chan_st_priv->cfg.bipolar = fwnode_property_read_bool(child, "bipolar");
>  		if (chan_st_priv->cfg.bipolar)