[PATCH] iio: adc: xilinx-ams: Fix num_channels for PS channels

[Jonathan Cameron]

On Wed, 19 Jan 2022 12:45:13 +0100
Michael Tretter <m.tretter at pengutronix.de> wrote:

> The IIO channels of the PS are not provided in the sysfs even if the
> ams_ps is enabled in the device tree. The reason is that the channels of
> the PS are not added to the overall number of IIO channels.
> 
> The line somehow got lost between v11 and v12 of the patch series.
> 
> Add the number of ams_ps_channels to the number of channels to correctly
> register all channels.
> 
> Signed-off-by: Michael Tretter <m.tretter at pengutronix.de>
> Fixes: d5c70627a794 ("iio: adc: Add Xilinx AMS driver")
Applied to the fixes togreg branch of iio.git.

Thanks,

Jonathan

> ---
>  drivers/iio/adc/xilinx-ams.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/iio/adc/xilinx-ams.c b/drivers/iio/adc/xilinx-ams.c
> index 8343c5f74121..ede968efb77f 100644
> --- a/drivers/iio/adc/xilinx-ams.c
> +++ b/drivers/iio/adc/xilinx-ams.c
> @@ -1224,6 +1224,7 @@ static int ams_init_module(struct iio_dev *indio_dev,
>  
>  		/* add PS channels to iio device channels */
>  		memcpy(channels, ams_ps_channels, sizeof(ams_ps_channels));
> +		num_channels += ARRAY_SIZE(ams_ps_channels);
>  	} else if (fwnode_property_match_string(fwnode, "compatible",
>  						"xlnx,zynqmp-ams-pl") == 0) {
>  		ams->pl_base = fwnode_iomap(fwnode, 0);