On Fri, 23 Nov 2018 22:23:07 -0200
Matheus Tavares <matheus.bernardino@xxxxxx> wrote:
> The ad2s90 driver currently sets some spi settings (max_speed_hz and
> mode) at ad2s90_probe. Since the maximum frequency is a required element
> in DT binding for spi slave devices and because the spi mode for the
> device can be either (0,0) or (1,1), these settings should be handled
> via device tree, not in the driver's code. This patch removes them from
> the probe function.
>
> Note: The way in which the mentioned spi settings need to be specified
> on the ad2s90's node of a device tree will be documented in the future
> patch "dt-bindings:iio:resolver: Add docs for ad2s90".
>
> Signed-off-by: Matheus Tavares <matheus.bernardino@xxxxxx>
Applied,
Thanks,
Jonathan
> ---
> Changes in v3:
> - none
>
> Changes in v2:
> - Rewritten patch message to better explain why the code snippet in
> question should be removed.
>
> drivers/staging/iio/resolver/ad2s90.c | 11 -----------
> 1 file changed, 11 deletions(-)
>
> diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c
> index fdae067ed866..abb9b9147ee6 100644
> --- a/drivers/staging/iio/resolver/ad2s90.c
> +++ b/drivers/staging/iio/resolver/ad2s90.c
> @@ -77,7 +77,6 @@ static int ad2s90_probe(struct spi_device *spi)
> {
> struct iio_dev *indio_dev;
> struct ad2s90_state *st;
> - int ret;
>
> indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
> if (!indio_dev)
> @@ -94,16 +93,6 @@ static int ad2s90_probe(struct spi_device *spi)
> indio_dev->num_channels = 1;
> indio_dev->name = spi_get_device_id(spi)->name;
>
> - /* need 600ns between CS and the first falling edge of SCLK */
> - spi->max_speed_hz = 830000;
> - spi->mode = SPI_MODE_3;
> - ret = spi_setup(spi);
> -
> - if (ret < 0) {
> - dev_err(&spi->dev, "spi_setup failed!\n");
> - return ret;
> - }
> -
> return devm_iio_device_register(indio_dev->dev.parent, indio_dev);
> }
>
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