[PATCH 2/2] iio: adc: rockchip_saradc: add support for rk3568 saradc

[Jonathan Cameron]

On Fri,  2 Jul 2021 10:15:27 +0800
Simon Xue <xxm at rock-chips.com> wrote:

A small amount of info on the device is always useful in a commit like this.
Here, perhaps you could call out that it is similar to some other device, but
with 8 channels?

Otherwise, looks good to me.  DT patch is fine as well.  I'll let them sit
a little longer though to give others time to comment.

The dtsi change requested by Johan goes via a different tree anyway so doesn't
need to be part of this series.

Jonathan

> Signed-off-by: Simon Xue <xxm at rock-chips.com>
> ---
>  drivers/iio/adc/rockchip_saradc.c | 22 +++++++++++++++++++++-
>  1 file changed, 21 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
> index 12584f1631d8..f3eb8d2e50dc 100644
> --- a/drivers/iio/adc/rockchip_saradc.c
> +++ b/drivers/iio/adc/rockchip_saradc.c
> @@ -35,7 +35,7 @@
>  #define SARADC_DLY_PU_SOC_MASK		0x3f
>  
>  #define SARADC_TIMEOUT			msecs_to_jiffies(100)
> -#define SARADC_MAX_CHANNELS		6
> +#define SARADC_MAX_CHANNELS		8
>  
>  struct rockchip_saradc_data {
>  	const struct iio_chan_spec	*channels;
> @@ -192,6 +192,23 @@ static const struct rockchip_saradc_data rk3399_saradc_data = {
>  	.clk_rate = 1000000,
>  };
>  
> +static const struct iio_chan_spec rockchip_rk3568_saradc_iio_channels[] = {
> +	SARADC_CHANNEL(0, "adc0", 10),
> +	SARADC_CHANNEL(1, "adc1", 10),
> +	SARADC_CHANNEL(2, "adc2", 10),
> +	SARADC_CHANNEL(3, "adc3", 10),
> +	SARADC_CHANNEL(4, "adc4", 10),
> +	SARADC_CHANNEL(5, "adc5", 10),
> +	SARADC_CHANNEL(6, "adc6", 10),
> +	SARADC_CHANNEL(7, "adc7", 10),
> +};
> +
> +static const struct rockchip_saradc_data rk3568_saradc_data = {
> +	.channels = rockchip_rk3568_saradc_iio_channels,
> +	.num_channels = ARRAY_SIZE(rockchip_rk3568_saradc_iio_channels),
> +	.clk_rate = 1000000,
> +};
> +
>  static const struct of_device_id rockchip_saradc_match[] = {
>  	{
>  		.compatible = "rockchip,saradc",
> @@ -202,6 +219,9 @@ static const struct of_device_id rockchip_saradc_match[] = {
>  	}, {
>  		.compatible = "rockchip,rk3399-saradc",
>  		.data = &rk3399_saradc_data,
> +	}, {
> +		.compatible = "rockchip,rk3568-saradc",
> +		.data = &rk3568_saradc_data,
>  	},
>  	{},
>  };