Re: [PATCH v6 2/2] iio: adc: add MAX40080 current-sense amplifier driver

[Andy Shevchenko <andriy.shevchenko@intel.com>]

On Thu, Jul 30, 2026 at 04:17:38PM +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.
> 
> Add a direct-mode IIO driver exposing the current and voltage channels
> with raw, scale and hardware-gain attributes, a configurable
> oversampling (digital averaging) ratio, and PEC-protected register
> access. The current scale is derived from the shunt resistor value
> described in the device tree.
> 
> The driver operates in single-measurement mode: each raw read triggers
> an on-demand conversion via SMBus Quick Command and returns a matched
> current/voltage pair. This avoids the latency and complexity of the
> continuous FIFO mode while ensuring each read reflects the current
> state. The two selectable current-sense ranges are exposed through
> scale/scale_available.
> 
> Continuous FIFO buffering, threshold events and the alert interrupt are
> intentionally left out of this initial submission and may be added
> later.

...

> +#include <linux/bitfield.h>
> +#include <linux/bitops.h>
> +#include <linux/cleanup.h>
> +#include <linux/i2c.h>
> +#include <linux/iopoll.h>
> +#include <linux/math64.h>
> +#include <linux/module.h>
> +#include <linux/mutex.h>
> +#include <linux/property.h>

+ types.h // uXX

> +#include <linux/unaligned.h>
> +#include <linux/units.h>

...

In general it _feels_ like some of the comments given in the previous rounds
were dropped or ignored. Is this true? Could it be that you mistakenly sent
one of the previous (early) versions?

That's why I stopped here.

-- 
With Best Regards,
Andy Shevchenko