[PATCH] iio: adc: rockchip_saradc: add saradc support for rk3399

[jic23@kernel.org (Jonathan Cameron)]

On 15/03/16 17:44, David Wu wrote:
> The ADC is a 6-channel signal-ended 10-bit Successive
> Approximation Register (SAR) A/D Converter.
> 
> Signed-off-by: David Wu <david.wu@rock-chips.com>
Looks straight forward so applied to the togreg branch of iio.git,
pushed out as testing for the autobuilders to play with it.

Thanks,

Jonathan
> ---
>  .../devicetree/bindings/iio/adc/rockchip-saradc.txt   |  6 +++++-
>  drivers/iio/adc/rockchip_saradc.c                     | 19 +++++++++++++++++++
>  2 files changed, 24 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
> index a9a5fe1..bf99e2f 100644
> --- a/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
> +++ b/Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt
> @@ -1,7 +1,11 @@
>  Rockchip Successive Approximation Register (SAR) A/D Converter bindings
>  
>  Required properties:
> -- compatible: Should be "rockchip,saradc" or "rockchip,rk3066-tsadc"
> +- compatible: should be "rockchip,<name>-saradc" or "rockchip,rk3066-tsadc"
> +   - "rockchip,saradc": for rk3188, rk3288
> +   - "rockchip,rk3066-tsadc": for rk3036
> +   - "rockchip,rk3399-saradc": for rk3399
> +
>  - reg: physical base address of the controller and length of memory mapped
>         region.
>  - interrupts: The interrupt number to the cpu. The interrupt specifier format
> diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
> index 9c311c1..f9ad6c2 100644
> --- a/drivers/iio/adc/rockchip_saradc.c
> +++ b/drivers/iio/adc/rockchip_saradc.c
> @@ -159,6 +159,22 @@ static const struct rockchip_saradc_data rk3066_tsadc_data = {
>  	.clk_rate = 50000,
>  };
>  
> +static const struct iio_chan_spec rockchip_rk3399_saradc_iio_channels[] = {
> +	ADC_CHANNEL(0, "adc0"),
> +	ADC_CHANNEL(1, "adc1"),
> +	ADC_CHANNEL(2, "adc2"),
> +	ADC_CHANNEL(3, "adc3"),
> +	ADC_CHANNEL(4, "adc4"),
> +	ADC_CHANNEL(5, "adc5"),
> +};
> +
> +static const struct rockchip_saradc_data rk3399_saradc_data = {
> +	.num_bits = 10,
> +	.channels = rockchip_rk3399_saradc_iio_channels,
> +	.num_channels = ARRAY_SIZE(rockchip_rk3399_saradc_iio_channels),
> +	.clk_rate = 1000000,
> +};
> +
>  static const struct of_device_id rockchip_saradc_match[] = {
>  	{
>  		.compatible = "rockchip,saradc",
> @@ -166,6 +182,9 @@ static const struct of_device_id rockchip_saradc_match[] = {
>  	}, {
>  		.compatible = "rockchip,rk3066-tsadc",
>  		.data = &rk3066_tsadc_data,
> +	}, {
> +		.compatible = "rockchip,rk3399-saradc",
> +		.data = &rk3399_saradc_data,
>  	},
>  	{},
>  };
>