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From: Siratul Islam <siratul.islam@linux.dev>
To: Stefan Popa <stefan.popa@analog.com>
Cc: linux-hwmon@vger.kernel.org, linux-iio@vger.kernel.org,
	 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	jic23@kernel.org, andy@kernel.org, nuno.sa@analog.com,
	linux@roeck-us.net, robh@kernel.org,  krzk+dt@kernel.org,
	conor+dt@kernel.org, dlechner@baylibre.com,
	 ciprian.hegbeli@analog.com, u.kleine-koenig@baylibre.com,
	 joshua.crofts1@gmail.com
Subject: Re: [PATCH v6 2/2] iio: adc: add MAX40080 current-sense amplifier driver
Date: Fri, 31 Jul 2026 12:00:06 +0600	[thread overview]
Message-ID: <df3edbd24fe35ba8897efefa0af69c58ffc1a39d.camel@linux.dev> (raw)
In-Reply-To: <20260730131738.822405-3-stefan.popa@analog.com>

On Thu, 2026-07-30 at 16:17 +0300, Stefan Popa wrote:
> The MAX40080 is a bidirectional current-sense amplifier with an
> integrated 12-bit ADC and an I2C/SMBus interface. It measures the
> voltage across an external shunt resistor and the input bus voltage,
> storing the results in an internal FIFO.
> 
...
> +
> +#define MAX40080_REG_FIFO_CFG		0x0A
> +#define  MAX40080_FIFO_CFG_STORE_IV_MSK	GENMASK(1, 0)
> +
> +#define MAX40080_REG_IV			0x10
> +/* Current is a 13-bit two's-complement value (magnitude + sign bit). */
> +#define  MAX40080_IV_I_MSK		GENMASK(12, 0)
> +#define  MAX40080_IV_I_SIGN_BIT		12
> +#define  MAX40080_IV_V_MAG_MSK		GENMASK(27, 16)
> +#define  MAX40080_IV_VALID_MSK		BIT(31)
> +
> +/* CFG.mode field values. */
> +#define MAX40080_CFG_MODE_STDBY		0x00
> +#define MAX40080_CFG_MODE_SINGLE	0x02
> +
> +/* CFG.range field values. */
> +#define MAX40080_CFG_RANGE_50MV		0
> +#define MAX40080_CFG_RANGE_10MV		1
this and other "MV"s below should be mV(m lowercase) as 
I suggested in the previous version.
> +
> +/* FIFO_CFG.store_iv field values. */
> +#define MAX40080_FIFO_CFG_STORE_I_V	0x02
I also had a question on why this is I_V and not IV like the rest of them?
> +
> +#define MAX40080_ADC_RES_BITS		12
> +#define MAX40080_INTER_VREF_MV		1250
> +#define MAX40080_V_BUFF_GAIN		30
> +#define MAX40080_CSA_50MV_GAIN		25
> +#define MAX40080_CSA_10MV_GAIN		125
...
Looks like you missed some of the reviews. If it was intentional,
please acknowledge that. It is a good idea to reply to emails
and discuss/confirm stuff before sending a new patch.

Also avoid sending --to mailing lists (linux-iio@vger.kernel.org). 
Send to maintainers and Cc reviewers and lists.

--
Best regards,
Sirat

      reply	other threads:[~2026-07-31  6:00 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-30 13:17 [PATCH v6 0/2] iio: adc: add MAX40080 current-sense amplifier driver Stefan Popa
2026-07-30 13:17 ` [PATCH v6 1/2] dt-bindings: iio: adc: add adi,max40080 Stefan Popa
2026-07-30 18:42   ` Siratul Islam
2026-07-31  7:04   ` Krzysztof Kozlowski
2026-07-31  7:06     ` Krzysztof Kozlowski
2026-07-30 13:17 ` [PATCH v6 2/2] iio: adc: add MAX40080 current-sense amplifier driver Stefan Popa
2026-07-31  6:00   ` Siratul Islam [this message]

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