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Message-ID: <ZNYDa+Un5bl5y9vT@smile.fi.intel.com>
Date: Fri, 11 Aug 2023 12:46:19 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Mehdi Djait <mehdi.djait.k@...il.com>
Cc: jic23@...nel.org, mazziesaccount@...il.com,
krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
lars@...afoo.de, linux-iio@...r.kernel.org,
linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v7 5/7] iio: accel: kionix-kx022a: Refactor driver and
add chip_info structure
On Wed, Aug 09, 2023 at 09:11:36PM +0200, Mehdi Djait wrote:
> Add the chip_info structure to the driver's private data to hold all
> the device specific infos.
> Refactor the kx022a driver implementation to make it more generic and
> extensible.
...
> + chip_info = device_get_match_data(&i2c->dev);
> + if (!chip_info) {
> + const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
Missing blank line.
> + chip_info = (const struct kx022a_chip_info *)id->driver_data;
> + if (!chip_info)
> + return -EINVAL;
> + }
...
> - if (val > KX022A_FIFO_LENGTH)
> - val = KX022A_FIFO_LENGTH;
> + val = min_t(unsigned int, data->chip_info->fifo_length, val);
min_t() is a beast. Please, use min() if no special requirement for
min_t() here, otherwise explain why.
...
> + data->fifo_buffer = kmalloc(data->chip_info->fifo_length *
> + KX022A_FIFO_SAMPLES_SIZE_BYTES, GFP_KERNEL);
kmalloc_array()
> + if (!data->fifo_buffer)
> + return -ENOMEM;
--
With Best Regards,
Andy Shevchenko
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