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Message-ID: <Y5B5SHMHZoV5eMAt@smile.fi.intel.com>
Date: Wed, 7 Dec 2022 13:30:16 +0200
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Okan Sahin <okan.sahin@...log.com>
Cc: outreachy@...ts.linux.dev, Lee Jones <lee@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Jonathan Cameron <jic23@...nel.org>,
Lars-Peter Clausen <lars@...afoo.de>,
ChiYuan Huang <cy_huang@...htek.com>,
Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
Caleb Connolly <caleb.connolly@...aro.org>,
Anand Ashok Dumbre <anand.ashok.dumbre@...inx.com>,
Ramona Bolboaca <ramona.bolboaca@...log.com>,
William Breathitt Gray <william.gray@...aro.org>,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
linux-iio@...r.kernel.org
Subject: Re: [PATCH 5/5] staging: drivers: iio: adc: Adc MAX77541 ADC Support
On Wed, Dec 07, 2022 at 12:08:44PM +0300, Okan Sahin wrote:
> This patch add adc support for MAX77541.
>
> The MAX77541 has an 8-bit Successive Approximation Register (SAR) ADC
> with four multiplexers for supporting the telemetry feature
Same comment as per patch 2.
...
> +#include <linux/bitfield.h>
> +#include <linux/iio/iio.h>
> +#include <include/linux/mfd/max77541.h>
Hmm...
> +#include <linux/platform_device.h>
> +#include <linux/regmap.h>
> +#include <linux/regulator/driver.h>
> +#include <linux/regulator/of_regulator.h>
...
> +enum {
> + MAX77541_ADC_CH1_I = 0,
> + MAX77541_ADC_CH2_I,
> + MAX77541_ADC_CH3_I,
> + MAX77541_ADC_CH6_I,
> +
> + MAX77541_ADC_IRQMAX_I,
If it's a terminator, drop the trailing comma.
> +};
...
> + case MAX77541_ADC_TEMP:
> + *val = -273;
I believe we have definition for this in units.h. Can you use it?
> + *val2 = 0;
> + return IIO_VAL_INT_PLUS_MICRO;
> + }
> +}
...
> + *val = 0;
> +
> + if (reg_val == LOW_RANGE)
> + *val2 = 6250;
> + else if (reg_val == MID_RANGE)
> + *val2 = 12500;
> + else if (reg_val == HIGH_RANGE)
> + *val2 = 25000;
> + else
> + return -EINVAL;
Can it be provided as a table?
...
> + *val = 0;
> +
> + if (reg_val == LOW_RANGE)
> + *val2 = 6250;
> + else if (reg_val == MID_RANGE)
> + *val2 = 12500;
> + else if (reg_val == HIGH_RANGE)
> + *val2 = 25000;
> + else
> + return -EINVAL;
Ditto.
...
> +
Redundant blank line.
> +module_platform_driver(max77541_adc_driver);
--
With Best Regards,
Andy Shevchenko
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