Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
iio: adc: ad4080: add support for AD4082, AD4085 and AD4088
Add support for the AD4082, AD4085 and AD4088 SAR ADCs. These devices
share the same resolution as their base variants but differ in LVDS CNV
clock count maximum:
- AD4082 (20-bit, like AD4080): lvds_cnv_clk_cnt_max 8 vs 7
- AD4085 (16-bit, like AD4084): lvds_cnv_clk_cnt_max 8 vs 2
- AD4088 (14-bit, like AD4087): lvds_cnv_clk_cnt_max 8 vs 1
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
authored by
Antoniu Miclaus
and committed by
Jonathan Cameron
419a96f8
6cfb965a
+45
+45
drivers/iio/adc/ad4080.c
+45
drivers/iio/adc/ad4080.c
···
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#define AD4080_SPI_READ BIT(7)
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#define AD4080_CHIP_ID 0x0050
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#define AD4081_CHIP_ID 0x0051
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+
#define AD4082_CHIP_ID 0x0052
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#define AD4083_CHIP_ID 0x0053
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#define AD4084_CHIP_ID 0x0054
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#define AD4085_CHIP_ID 0x0055
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#define AD4086_CHIP_ID 0x0056
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#define AD4087_CHIP_ID 0x0057
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#define AD4088_CHIP_ID 0x0058
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#define AD4080_LVDS_CNV_CLK_CNT_MAX 7
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···
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static const struct iio_chan_spec ad4081_channel = AD4080_CHANNEL_DEFINE(20, 32);
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static const struct iio_chan_spec ad4082_channel = AD4080_CHANNEL_DEFINE(20, 32);
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static const struct iio_chan_spec ad4083_channel = AD4080_CHANNEL_DEFINE(16, 16);
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static const struct iio_chan_spec ad4084_channel = AD4080_CHANNEL_DEFINE(16, 16);
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static const struct iio_chan_spec ad4085_channel = AD4080_CHANNEL_DEFINE(16, 16);
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static const struct iio_chan_spec ad4086_channel = AD4080_CHANNEL_DEFINE(14, 16);
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static const struct iio_chan_spec ad4087_channel = AD4080_CHANNEL_DEFINE(14, 16);
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+
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static const struct iio_chan_spec ad4088_channel = AD4080_CHANNEL_DEFINE(14, 16);
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static const struct ad4080_chip_info ad4080_chip_info = {
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.name = "ad4080",
···
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.num_channels = 1,
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.channels = &ad4081_channel,
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.lvds_cnv_clk_cnt_max = 2,
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};
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static const struct ad4080_chip_info ad4082_chip_info = {
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.name = "ad4082",
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.product_id = AD4082_CHIP_ID,
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.scale_table = ad4080_scale_table,
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.num_scales = ARRAY_SIZE(ad4080_scale_table),
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.num_channels = 1,
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.channels = &ad4082_channel,
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.lvds_cnv_clk_cnt_max = 8,
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};
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static const struct ad4080_chip_info ad4083_chip_info = {
···
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.lvds_cnv_clk_cnt_max = 2,
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};
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static const struct ad4080_chip_info ad4085_chip_info = {
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.name = "ad4085",
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.product_id = AD4085_CHIP_ID,
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.scale_table = ad4080_scale_table,
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.num_scales = ARRAY_SIZE(ad4080_scale_table),
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.num_channels = 1,
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.channels = &ad4085_channel,
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.lvds_cnv_clk_cnt_max = 8,
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};
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static const struct ad4080_chip_info ad4086_chip_info = {
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.name = "ad4086",
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.product_id = AD4086_CHIP_ID,
···
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.num_channels = 1,
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.channels = &ad4087_channel,
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.lvds_cnv_clk_cnt_max = 1,
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};
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static const struct ad4080_chip_info ad4088_chip_info = {
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.name = "ad4088",
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.product_id = AD4088_CHIP_ID,
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.scale_table = ad4080_scale_table,
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.num_scales = ARRAY_SIZE(ad4080_scale_table),
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.num_channels = 1,
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.channels = &ad4088_channel,
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.lvds_cnv_clk_cnt_max = 8,
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};
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static int ad4080_setup(struct iio_dev *indio_dev)
···
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static const struct spi_device_id ad4080_id[] = {
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{ "ad4080", (kernel_ulong_t)&ad4080_chip_info },
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{ "ad4081", (kernel_ulong_t)&ad4081_chip_info },
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{ "ad4082", (kernel_ulong_t)&ad4082_chip_info },
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{ "ad4083", (kernel_ulong_t)&ad4083_chip_info },
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{ "ad4084", (kernel_ulong_t)&ad4084_chip_info },
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{ "ad4085", (kernel_ulong_t)&ad4085_chip_info },
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{ "ad4086", (kernel_ulong_t)&ad4086_chip_info },
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{ "ad4087", (kernel_ulong_t)&ad4087_chip_info },
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{ "ad4088", (kernel_ulong_t)&ad4088_chip_info },
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{ }
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};
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MODULE_DEVICE_TABLE(spi, ad4080_id);
···
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static const struct of_device_id ad4080_of_match[] = {
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{ .compatible = "adi,ad4080", &ad4080_chip_info },
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{ .compatible = "adi,ad4081", &ad4081_chip_info },
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{ .compatible = "adi,ad4082", &ad4082_chip_info },
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{ .compatible = "adi,ad4083", &ad4083_chip_info },
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{ .compatible = "adi,ad4084", &ad4084_chip_info },
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{ .compatible = "adi,ad4085", &ad4085_chip_info },
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{ .compatible = "adi,ad4086", &ad4086_chip_info },
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{ .compatible = "adi,ad4087", &ad4087_chip_info },
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{ .compatible = "adi,ad4088", &ad4088_chip_info },
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{ }
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};
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MODULE_DEVICE_TABLE(of, ad4080_of_match);