iio: adc: adc128s052: Support ROHM BD7910[0,1,2,3]

The ROHM BD79100, BD79101, BD79102, BD79103 are very similar ADCs as the
ROHM BD79104. The BD79100 has only 1 channel. BD79101 has 2 channels and
the BD79102 has 4 channels. Both BD79103 and BD79104 have 4 channels,
and, based on the data sheets, they seem identical from the software
point-of-view.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Link: https://patch.msgid.link/bb7a775fd1a6135889a72ae63c45e2a4347a2aa5.1755504346.git.mazziesaccount@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/adc/ti-adc128s052.c b/drivers/iio/adc/ti-adc128s052.c
index 9b8ecaca01edff4a1bd98971c2f6af37f54cc580..4ae65793ad9b3c6b17da1c341b537f74aeb9f2c8 100644 (file)
--- a/drivers/iio/adc/ti-adc128s052.c
+++ b/drivers/iio/adc/ti-adc128s052.c
@@ -99,6 +99,10 @@ static int adc128_read_raw(struct iio_dev *indio_dev,
                .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) \
        }
 
+static const struct iio_chan_spec simple_1chan_adc_channels[] = {
+       ADC128_VOLTAGE_CHANNEL(0),
+};
+
 static const struct iio_chan_spec simple_2chan_adc_channels[] = {
        ADC128_VOLTAGE_CHANNEL(0),
        ADC128_VOLTAGE_CHANNEL(1),
@@ -142,6 +146,30 @@ static const struct adc128_configuration adc128s_config = {
        .refname = "vref",
 };
 
+static const struct adc128_configuration bd79100_config = {
+       .channels = simple_1chan_adc_channels,
+       .num_channels = ARRAY_SIZE(simple_1chan_adc_channels),
+       .refname = "vdd",
+       .other_regulators = &bd79104_regulators,
+       .num_other_regulators = 1,
+};
+
+static const struct adc128_configuration bd79101_config = {
+       .channels = simple_2chan_adc_channels,
+       .num_channels = ARRAY_SIZE(simple_2chan_adc_channels),
+       .refname = "vdd",
+       .other_regulators = &bd79104_regulators,
+       .num_other_regulators = 1,
+};
+
+static const struct adc128_configuration bd79102_config = {
+       .channels = simple_4chan_adc_channels,
+       .num_channels = ARRAY_SIZE(simple_4chan_adc_channels),
+       .refname = "vdd",
+       .other_regulators = &bd79104_regulators,
+       .num_other_regulators = 1,
+};
+
 static const struct adc128_configuration bd79104_config = {
        .channels = simple_8chan_adc_channels,
        .num_channels = ARRAY_SIZE(simple_8chan_adc_channels),
@@ -210,6 +238,10 @@ static const struct of_device_id adc128_of_match[] = {
        { .compatible = "ti,adc124s021", .data = &adc124s_config },
        { .compatible = "ti,adc124s051", .data = &adc124s_config },
        { .compatible = "ti,adc124s101", .data = &adc124s_config },
+       { .compatible = "rohm,bd79100", .data = &bd79100_config },
+       { .compatible = "rohm,bd79101", .data = &bd79101_config },
+       { .compatible = "rohm,bd79102", .data = &bd79102_config },
+       { .compatible = "rohm,bd79103", .data = &bd79104_config },
        { .compatible = "rohm,bd79104", .data = &bd79104_config },
        { }
 };
@@ -223,6 +255,10 @@ static const struct spi_device_id adc128_id[] = {
        { "adc124s021", (kernel_ulong_t)&adc124s_config },
        { "adc124s051", (kernel_ulong_t)&adc124s_config },
        { "adc124s101", (kernel_ulong_t)&adc124s_config },
+       { "bd79100", (kernel_ulong_t)&bd79100_config },
+       { "bd79101", (kernel_ulong_t)&bd79101_config },
+       { "bd79102", (kernel_ulong_t)&bd79102_config },
+       { "bd79103", (kernel_ulong_t)&bd79104_config },
        { "bd79104", (kernel_ulong_t)&bd79104_config },
        { }
 };