linux-kernel - Re: [PATCH v6 6/9] iio: adc: ad7173: add support for special inputs

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Message-ID: <822eec36a530f659e4924886ad8d2bf272accd59.camel@gmail.com>
Date: Fri, 07 Jun 2024 11:06:34 +0200
From: Nuno Sá <noname.nuno@...il.com>
To: dumitru.ceclan@...log.com
Cc: Lars-Peter Clausen <lars@...afoo.de>, Michael Hennerich
 <Michael.Hennerich@...log.com>, Jonathan Cameron <jic23@...nel.org>, Rob
 Herring <robh@...nel.org>, Krzysztof Kozlowski
 <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>,
 David Lechner <dlechner@...libre.com>,  linux-iio@...r.kernel.org,
 devicetree@...r.kernel.org,  linux-kernel@...r.kernel.org, Dumitru Ceclan
 <mitrutzceclan@...il.com>
Subject: Re: [PATCH v6 6/9] iio: adc: ad7173: add support for special inputs

On Thu, 2024-06-06 at 19:07 +0300, Dumitru Ceclan via B4 Relay wrote:
> From: Dumitru Ceclan <dumitru.ceclan@...log.com>
> 
>  Add support for selecting REF+ and REF- inputs on all models.
>  Add support for selecting ((AVDD1 − AVSS)/5) inputs
>   on supported models.
> 
> Signed-off-by: Dumitru Ceclan <dumitru.ceclan@...log.com>
> ---
>  drivers/iio/adc/ad7173.c | 29 +++++++++++++++++++++++++++--
>  1 file changed, 27 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c
> index 4040edbd1c32..d16fa081a285 100644
> --- a/drivers/iio/adc/ad7173.c
> +++ b/drivers/iio/adc/ad7173.c
> @@ -66,6 +66,13 @@
>  	 FIELD_PREP(AD7173_CH_SETUP_AINNEG_MASK, neg))
>  #define AD7173_AIN_TEMP_POS	17
>  #define AD7173_AIN_TEMP_NEG	18
> +#define AD7173_AIN_POW_MON_POS	19
> +#define AD7173_AIN_POW_MON_NEG	20
> +#define AD7173_AIN_REF_POS	21
> +#define AD7173_AIN_REF_NEG	22
> +
> +#define AD7173_IS_REF_INPUT(x)		((x) == AD7173_AIN_REF_POS || \
> +					(x) == AD7173_AIN_REF_NEG)
>  
>  #define AD7172_2_ID			0x00d0
>  #define AD7175_ID			0x0cd0
> @@ -146,6 +153,8 @@ struct ad7173_device_info {
>  	unsigned int id;
>  	char *name;
>  	bool has_temp;
> +	/* ((AVDD1 − AVSS)/5) */
> +	bool has_pow_supply_monitoring;
>  	bool has_input_buf;
>  	bool has_int_ref;
>  	bool has_ref2;
> @@ -216,6 +225,7 @@ static const struct ad7173_device_info
> ad7173_device_info[] = {
>  		.has_temp = true,
>  		.has_input_buf = true,
>  		.has_int_ref = true,
> +		.has_pow_supply_monitoring = true,
>  		.clock = 2 * HZ_PER_MHZ,
>  		.sinc5_data_rates = ad7173_sinc5_data_rates,
>  		.num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates),
> @@ -230,6 +240,7 @@ static const struct ad7173_device_info
> ad7173_device_info[] = {
>  		.has_temp = false,
>  		.has_input_buf = true,
>  		.has_ref2 = true,
> +		.has_pow_supply_monitoring = true,
>  		.clock = 2 * HZ_PER_MHZ,
>  		.sinc5_data_rates = ad7173_sinc5_data_rates,
>  		.num_sinc5_data_rates = ARRAY_SIZE(ad7173_sinc5_data_rates),
> @@ -245,6 +256,7 @@ static const struct ad7173_device_info
> ad7173_device_info[] = {
>  		.has_input_buf = true,
>  		.has_int_ref = true,
>  		.has_ref2 = true,
> +		.has_pow_supply_monitoring = false,

No need to set the 'false' cases...


- Nuno Sá