iio: adc: rockchip_saradc: add support for rk3568 saradc

It is similar to other devices, but with 8 channels.

Signed-off-by: Simon Xue <xxm@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20210712014507.97477-1-xxm@rock-chips.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/rockchip_saradc.c b/drivers/iio/adc/rockchip_saradc.c
index 12584f1..f3eb8d2 100644 (file)
--- 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,
        },
        {},
 };