Re: [PATCH v5 4/4] iio: accel: adxl345: Add SPI support

Eva Rachel Retuya
2017-03-04T06:00:32Z

On Fri, Mar 03, 2017 at 06:55:26PM +0200, Andy Shevchenko wrote:
> On Tue, Feb 28, 2017 at 4:37 AM, Eva Rachel Retuya <eraretuya@gmail.com> wrote:
> > Add SPI driver that initializes SPI regmap for the adxl345 core driver.
> > The driver supports the same functionality as I2C namely the x, y, z and
> > scale readings.
>
> Portion of minor comments.
>
> > +config ADXL345_SPI
> > + tristate "Analog Devices ADXL345 3-Axis Digital Accelerometer SPI Driver"
>
> > + depends on !(INPUT_ADXL34X=y || INPUT_ADXL34X=m)
>
> Same question. Would it be just
>
> depends on INPUT_ADXL34X=n
>
> ?
>
> > + /* Setting bits 7 and 6 enables multiple-byte read */
> > + .read_flag_mask = BIT(7) | BIT(6),
>
> GENMASK(7, 6) ?
>

True, but I would like to keep this as is. It is more readable and
obvious than GENMASK().

> > +static int adxl345_spi_probe(struct spi_device *spi)
> > +{
>
> > + struct regmap *regmap;
> > + const struct spi_device_id *id = spi_get_device_id(spi);
>
> Reverse order.
>
> And usually we do assignments from function parameters first.

Ack.

Thanks,
Eva
>
> > + dev_err(&spi->dev, "Error initializing spi regmap: %d\n",
> > + (int)PTR_ERR(regmap));
>
> Ugly casting!
>
> --
> With Best Regards,
> Andy Shevchenko