Re: [PATCH v2] iio: accel: Add driver for the MiraMEMS DA311 3-axis 12-bit digital accelerometer

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On 09/22/2016 03:42 PM, Hans de Goede wrote:
[...]
> +	switch (mask) {
> +	case IIO_CHAN_INFO_RAW:
> +		ret = i2c_smbus_read_word_data(data->client, chan->address);
> +		if (ret < 0)
> +			return ret;
> +		/*
> +		 * Values are 12 bits, stored as 16 bits with the 4
> +		 * least significant bits always 0.
> +		 */
> +		*val = ((short)le16_to_cpu(ret)) >> 4;

I think the le16_to_cpu() is a leftover from the switch away from
i2c_smbus_read_i2c_block_data(). i2c_smbus_read_word_data() already returns
CPU endianess data. On a BE system le16_to_cpu() swaps the lower and upper
bytes on a BE system. So you'd get the wrong value in that case.

> +		return IIO_VAL_INT;

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