diff mbox series

[v3,07/10] iio: adc: ad7606: Add compatibility to fw_nodes

Message ID 20241004-ad7606_add_iio_backend_support-v3-7-38757012ce82@baylibre.com
State Handled Elsewhere
Headers show
Series Add iio backend compatibility for ad7606 | expand

Commit Message

Guillaume Stols Oct. 4, 2024, 9:48 p.m. UTC 
On the parallel version, the current implementation is only compatible
with id tables and won't work with fw_nodes, this commit intends to fix
it.

Doing so required to declare ad7606_chip_info structures in the .h file
so to make them accessible to all the driver files that can set a
pointer to the corresponding chip as the driver data.

Signed-off-by: Guillaume Stols <gstols@baylibre.com>
---
 drivers/iio/adc/ad7606.c     | 283 ++++++++++++++++++++++++-------------------
 drivers/iio/adc/ad7606.h     |  32 +++--
 drivers/iio/adc/ad7606_par.c |  30 +++--
 drivers/iio/adc/ad7606_spi.c | 102 ++++++++++------
 4 files changed, 257 insertions(+), 190 deletions(-)

Comments

kernel test robot Oct. 6, 2024, 6:23 a.m. UTC | #1 
Hi Guillaume,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 35307f34d6fef8f9d41a1e8f4f532e4b0a7ee422]

url:    https://github.com/intel-lab-lkp/linux/commits/Guillaume-Stols/iio-adc-ad7606-Fix-typo-in-the-driver-name/20241005-055256
base:   35307f34d6fef8f9d41a1e8f4f532e4b0a7ee422
patch link:    https://lore.kernel.org/r/20241004-ad7606_add_iio_backend_support-v3-7-38757012ce82%40baylibre.com
patch subject: [PATCH v3 07/10] iio: adc: ad7606: Add compatibility to fw_nodes
config: i386-randconfig-062-20241006 (https://download.01.org/0day-ci/archive/20241006/202410061420.L3sUSK8b-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241006/202410061420.L3sUSK8b-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202410061420.L3sUSK8b-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/iio/adc/ad7606_spi.c:324:29: sparse: sparse: symbol 'ad7606_spi_bops' was not declared. Should it be static?
>> drivers/iio/adc/ad7606_spi.c:328:29: sparse: sparse: symbol 'ad7616_spi_bops' was not declared. Should it be static?
>> drivers/iio/adc/ad7606_spi.c:337:29: sparse: sparse: symbol 'ad7606b_spi_bops' was not declared. Should it be static?
>> drivers/iio/adc/ad7606_spi.c:346:29: sparse: sparse: symbol 'ad7606c_18_spi_bops' was not declared. Should it be static?
>> drivers/iio/adc/ad7606_spi.c:370:30: sparse: sparse: symbol 'ad7606_4_bus_info' was not declared. Should it be static?
>> drivers/iio/adc/ad7606_spi.c:375:30: sparse: sparse: symbol 'ad7606b_bus_info' was not declared. Should it be static?
>> drivers/iio/adc/ad7606_spi.c:380:30: sparse: sparse: symbol 'ad7606c_16_bus_info' was not declared. Should it be static?
>> drivers/iio/adc/ad7606_spi.c:385:30: sparse: sparse: symbol 'ad7606c_18_bus_info' was not declared. Should it be static?
>> drivers/iio/adc/ad7606_spi.c:390:30: sparse: sparse: symbol 'ad7616_bus_info' was not declared. Should it be static?

vim +/ad7606_spi_bops +324 drivers/iio/adc/ad7606_spi.c

   323	
 > 324	const struct ad7606_bus_ops ad7606_spi_bops = {
   325		.read_block = ad7606_spi_read_block,
   326	};
   327	
 > 328	const struct ad7606_bus_ops ad7616_spi_bops = {
   329		.read_block = ad7606_spi_read_block,
   330		.reg_read = ad7606_spi_reg_read,
   331		.reg_write = ad7606_spi_reg_write,
   332		.write_mask = ad7606_spi_write_mask,
   333		.rd_wr_cmd = ad7616_spi_rd_wr_cmd,
   334		.sw_mode_config = ad7616_sw_mode_config,
   335	};
   336	
 > 337	const struct ad7606_bus_ops ad7606b_spi_bops = {
   338		.read_block = ad7606_spi_read_block,
   339		.reg_read = ad7606_spi_reg_read,
   340		.reg_write = ad7606_spi_reg_write,
   341		.write_mask = ad7606_spi_write_mask,
   342		.rd_wr_cmd = ad7606B_spi_rd_wr_cmd,
   343		.sw_mode_config = ad7606B_sw_mode_config,
   344	};
   345	
 > 346	const struct ad7606_bus_ops ad7606c_18_spi_bops = {
   347		.read_block = ad7606_spi_read_block18to32,
   348		.reg_read = ad7606_spi_reg_read,
   349		.reg_write = ad7606_spi_reg_write,
   350		.write_mask = ad7606_spi_write_mask,
   351		.rd_wr_cmd = ad7606B_spi_rd_wr_cmd,
   352		.sw_mode_config = ad7606c_18_sw_mode_config,
   353	};
   354	
   355	static const struct ad7606_bus_info ad7605_4_bus_info = {
   356		.chip_info = &ad7605_4_info,
   357		.bops = &ad7606_spi_bops,
   358	};
   359	
   360	static const struct ad7606_bus_info ad7606_8_bus_info = {
   361		.chip_info = &ad7606_8_info,
   362		.bops = &ad7606_spi_bops,
   363	};
   364	
   365	static const struct ad7606_bus_info ad7606_6_bus_info = {
   366		.chip_info = &ad7606_6_info,
   367		.bops = &ad7606_spi_bops,
   368	};
   369	
 > 370	const struct ad7606_bus_info ad7606_4_bus_info = {
   371		.chip_info = &ad7606_4_info,
   372		.bops = &ad7606_spi_bops,
   373	};
   374	
 > 375	const struct ad7606_bus_info ad7606b_bus_info = {
   376		.chip_info = &ad7606b_info,
   377		.bops = &ad7606b_spi_bops,
   378	};
   379	
 > 380	const struct ad7606_bus_info ad7606c_16_bus_info = {
   381		.chip_info = &ad7606c_16_info,
   382		.bops = &ad7606b_spi_bops,
   383	};
   384	
 > 385	const struct ad7606_bus_info ad7606c_18_bus_info = {
   386		.chip_info = &ad7606c_18_info,
   387		.bops = &ad7606c_18_spi_bops,
   388	};
   389	
 > 390	const struct ad7606_bus_info ad7616_bus_info = {
   391		.chip_info = &ad7616_info,
   392		.bops = &ad7616_spi_bops,
   393	};
   394
diff mbox series

Patch

diff --git a/drivers/iio/adc/ad7606.c b/drivers/iio/adc/ad7606.c
index 224ffaf3dbff..612e6d9f57ed 100644
--- a/drivers/iio/adc/ad7606.c
+++ b/drivers/iio/adc/ad7606.c
@@ -78,6 +78,155 @@  static const unsigned int ad7616_oversampling_avail[8] = {
 	1, 2, 4, 8, 16, 32, 64, 128,
 };
 
+static const struct iio_chan_spec ad7605_channels[] = {
+	IIO_CHAN_SOFT_TIMESTAMP(4),
+	AD7605_CHANNEL(0),
+	AD7605_CHANNEL(1),
+	AD7605_CHANNEL(2),
+	AD7605_CHANNEL(3),
+};
+
+static const struct iio_chan_spec ad7606_channels_16bit[] = {
+	IIO_CHAN_SOFT_TIMESTAMP(8),
+	AD7606_CHANNEL(0, 16),
+	AD7606_CHANNEL(1, 16),
+	AD7606_CHANNEL(2, 16),
+	AD7606_CHANNEL(3, 16),
+	AD7606_CHANNEL(4, 16),
+	AD7606_CHANNEL(5, 16),
+	AD7606_CHANNEL(6, 16),
+	AD7606_CHANNEL(7, 16),
+};
+
+static const struct iio_chan_spec ad7606_channels_18bit[] = {
+	IIO_CHAN_SOFT_TIMESTAMP(8),
+	AD7606_CHANNEL(0, 18),
+	AD7606_CHANNEL(1, 18),
+	AD7606_CHANNEL(2, 18),
+	AD7606_CHANNEL(3, 18),
+	AD7606_CHANNEL(4, 18),
+	AD7606_CHANNEL(5, 18),
+	AD7606_CHANNEL(6, 18),
+	AD7606_CHANNEL(7, 18),
+};
+
+/*
+ * The current assumption that this driver makes for AD7616, is that it's
+ * working in Hardware Mode with Serial, Burst and Sequencer modes activated.
+ * To activate them, following pins must be pulled high:
+ *	-SER/PAR
+ *	-SEQEN
+ * And following pins must be pulled low:
+ *	-WR/BURST
+ *	-DB4/SER1W
+ */
+static const struct iio_chan_spec ad7616_channels[] = {
+	IIO_CHAN_SOFT_TIMESTAMP(16),
+	AD7606_CHANNEL(0, 16),
+	AD7606_CHANNEL(1, 16),
+	AD7606_CHANNEL(2, 16),
+	AD7606_CHANNEL(3, 16),
+	AD7606_CHANNEL(4, 16),
+	AD7606_CHANNEL(5, 16),
+	AD7606_CHANNEL(6, 16),
+	AD7606_CHANNEL(7, 16),
+	AD7606_CHANNEL(8, 16),
+	AD7606_CHANNEL(9, 16),
+	AD7606_CHANNEL(10, 16),
+	AD7606_CHANNEL(11, 16),
+	AD7606_CHANNEL(12, 16),
+	AD7606_CHANNEL(13, 16),
+	AD7606_CHANNEL(14, 16),
+	AD7606_CHANNEL(15, 16),
+};
+
+static int ad7606c_18bit_chan_scale_setup(struct ad7606_state *st,
+					  struct iio_chan_spec *chan, int ch);
+static int ad7606c_16bit_chan_scale_setup(struct ad7606_state *st,
+					  struct iio_chan_spec *chan, int ch);
+static int ad7606_16bit_chan_scale_setup(struct ad7606_state *st,
+					 struct iio_chan_spec *chan, int ch);
+
+const struct ad7606_chip_info ad7605_4_info = {
+	.channels = ad7605_channels,
+	.name = "ad7605-4",
+	.num_channels = 5,
+	.scale_setup_cb = ad7606_16bit_chan_scale_setup,
+};
+EXPORT_SYMBOL_NS_GPL(ad7605_4_info, IIO_AD7606);
+
+const struct ad7606_chip_info ad7606_8_info = {
+	.channels = ad7606_channels_16bit,
+	.name = "ad7606-8",
+	.num_channels = 9,
+	.oversampling_avail = ad7606_oversampling_avail,
+	.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
+	.scale_setup_cb = ad7606_16bit_chan_scale_setup,
+};
+EXPORT_SYMBOL_NS_GPL(ad7606_8_info, IIO_AD7606);
+
+const struct ad7606_chip_info ad7606_6_info = {
+	.channels = ad7606_channels_16bit,
+	.name = "ad7606-6",
+	.num_channels = 7,
+	.oversampling_avail = ad7606_oversampling_avail,
+	.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
+	.scale_setup_cb = ad7606_16bit_chan_scale_setup,
+};
+EXPORT_SYMBOL_NS_GPL(ad7606_6_info, IIO_AD7606);
+
+const struct ad7606_chip_info ad7606_4_info = {
+	.channels = ad7606_channels_16bit,
+	.name = "ad7606-4",
+	.num_channels = 5,
+	.oversampling_avail = ad7606_oversampling_avail,
+	.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
+	.scale_setup_cb = ad7606_16bit_chan_scale_setup,
+};
+EXPORT_SYMBOL_NS_GPL(ad7606_4_info, IIO_AD7606);
+
+const struct ad7606_chip_info ad7606b_info = {
+	.channels = ad7606_channels_16bit,
+	.name = "ad7606b",
+	.num_channels = 9,
+	.oversampling_avail = ad7606_oversampling_avail,
+	.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
+	.scale_setup_cb = ad7606_16bit_chan_scale_setup,
+};
+EXPORT_SYMBOL_NS_GPL(ad7606b_info, IIO_AD7606);
+
+const struct ad7606_chip_info ad7606c_16_info = {
+	.channels = ad7606_channels_16bit,
+	.name = "ad7606c16",
+	.num_channels = 9,
+	.oversampling_avail = ad7606_oversampling_avail,
+	.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
+	.scale_setup_cb = ad7606c_16bit_chan_scale_setup,
+};
+EXPORT_SYMBOL_NS_GPL(ad7606c_16_info, IIO_AD7606);
+
+const struct ad7606_chip_info ad7606c_18_info = {
+	.channels = ad7606_channels_18bit,
+	.name = "ad7606c18",
+	.num_channels = 9,
+	.oversampling_avail = ad7606_oversampling_avail,
+	.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
+	.scale_setup_cb = ad7606c_18bit_chan_scale_setup,
+};
+EXPORT_SYMBOL_NS_GPL(ad7606c_18_info, IIO_AD7606);
+
+const struct ad7606_chip_info ad7616_info = {
+	.channels = ad7616_channels,
+	.init_delay_ms = 15,
+	.name = "ad7616",
+	.num_channels = 17,
+	.oversampling_avail = ad7616_oversampling_avail,
+	.oversampling_num = ARRAY_SIZE(ad7616_oversampling_avail),
+	.os_req_reset = true,
+	.scale_setup_cb = ad7606_16bit_chan_scale_setup,
+};
+EXPORT_SYMBOL_NS_GPL(ad7616_info, IIO_AD7606);
+
 int ad7606_reset(struct ad7606_state *st)
 {
 	if (st->gpio_reset) {
@@ -627,128 +776,6 @@  static const struct attribute_group ad7606_attribute_group_range = {
 	.attrs = ad7606_attributes_range,
 };
 
-static const struct iio_chan_spec ad7605_channels[] = {
-	IIO_CHAN_SOFT_TIMESTAMP(4),
-	AD7605_CHANNEL(0),
-	AD7605_CHANNEL(1),
-	AD7605_CHANNEL(2),
-	AD7605_CHANNEL(3),
-};
-
-static const struct iio_chan_spec ad7606_channels_16bit[] = {
-	IIO_CHAN_SOFT_TIMESTAMP(8),
-	AD7606_CHANNEL(0, 16),
-	AD7606_CHANNEL(1, 16),
-	AD7606_CHANNEL(2, 16),
-	AD7606_CHANNEL(3, 16),
-	AD7606_CHANNEL(4, 16),
-	AD7606_CHANNEL(5, 16),
-	AD7606_CHANNEL(6, 16),
-	AD7606_CHANNEL(7, 16),
-};
-
-static const struct iio_chan_spec ad7606_channels_18bit[] = {
-	IIO_CHAN_SOFT_TIMESTAMP(8),
-	AD7606_CHANNEL(0, 18),
-	AD7606_CHANNEL(1, 18),
-	AD7606_CHANNEL(2, 18),
-	AD7606_CHANNEL(3, 18),
-	AD7606_CHANNEL(4, 18),
-	AD7606_CHANNEL(5, 18),
-	AD7606_CHANNEL(6, 18),
-	AD7606_CHANNEL(7, 18),
-};
-
-/*
- * The current assumption that this driver makes for AD7616, is that it's
- * working in Hardware Mode with Serial, Burst and Sequencer modes activated.
- * To activate them, following pins must be pulled high:
- *	-SER/PAR
- *	-SEQEN
- * And following pins must be pulled low:
- *	-WR/BURST
- *	-DB4/SER1W
- */
-static const struct iio_chan_spec ad7616_channels[] = {
-	IIO_CHAN_SOFT_TIMESTAMP(16),
-	AD7606_CHANNEL(0, 16),
-	AD7606_CHANNEL(1, 16),
-	AD7606_CHANNEL(2, 16),
-	AD7606_CHANNEL(3, 16),
-	AD7606_CHANNEL(4, 16),
-	AD7606_CHANNEL(5, 16),
-	AD7606_CHANNEL(6, 16),
-	AD7606_CHANNEL(7, 16),
-	AD7606_CHANNEL(8, 16),
-	AD7606_CHANNEL(9, 16),
-	AD7606_CHANNEL(10, 16),
-	AD7606_CHANNEL(11, 16),
-	AD7606_CHANNEL(12, 16),
-	AD7606_CHANNEL(13, 16),
-	AD7606_CHANNEL(14, 16),
-	AD7606_CHANNEL(15, 16),
-};
-
-static const struct ad7606_chip_info ad7606_chip_info_tbl[] = {
-	/* More devices added in future */
-	[ID_AD7605_4] = {
-		.channels = ad7605_channels,
-		.num_channels = 5,
-		.scale_setup_cb = ad7606_16bit_chan_scale_setup,
-	},
-	[ID_AD7606_8] = {
-		.channels = ad7606_channels_16bit,
-		.num_channels = 9,
-		.scale_setup_cb = ad7606_16bit_chan_scale_setup,
-		.oversampling_avail = ad7606_oversampling_avail,
-		.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
-	},
-	[ID_AD7606_6] = {
-		.channels = ad7606_channels_16bit,
-		.num_channels = 7,
-		.scale_setup_cb = ad7606_16bit_chan_scale_setup,
-		.oversampling_avail = ad7606_oversampling_avail,
-		.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
-	},
-	[ID_AD7606_4] = {
-		.channels = ad7606_channels_16bit,
-		.num_channels = 5,
-		.scale_setup_cb = ad7606_16bit_chan_scale_setup,
-		.oversampling_avail = ad7606_oversampling_avail,
-		.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
-	},
-	[ID_AD7606B] = {
-		.channels = ad7606_channels_16bit,
-		.num_channels = 9,
-		.scale_setup_cb = ad7606_16bit_chan_scale_setup,
-		.oversampling_avail = ad7606_oversampling_avail,
-		.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
-	},
-	[ID_AD7606C_16] = {
-		.channels = ad7606_channels_16bit,
-		.num_channels = 9,
-		.scale_setup_cb = ad7606c_16bit_chan_scale_setup,
-		.oversampling_avail = ad7606_oversampling_avail,
-		.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
-	},
-	[ID_AD7606C_18] = {
-		.channels = ad7606_channels_18bit,
-		.num_channels = 9,
-		.scale_setup_cb = ad7606c_18bit_chan_scale_setup,
-		.oversampling_avail = ad7606_oversampling_avail,
-		.oversampling_num = ARRAY_SIZE(ad7606_oversampling_avail),
-	},
-	[ID_AD7616] = {
-		.channels = ad7616_channels,
-		.num_channels = 17,
-		.scale_setup_cb = ad7606_16bit_chan_scale_setup,
-		.oversampling_avail = ad7616_oversampling_avail,
-		.oversampling_num = ARRAY_SIZE(ad7616_oversampling_avail),
-		.os_req_reset = true,
-		.init_delay_ms = 15,
-	},
-};
-
 static int ad7606_request_gpios(struct ad7606_state *st)
 {
 	struct device *dev = st->dev;
@@ -914,7 +941,7 @@  static const struct iio_trigger_ops ad7606_trigger_ops = {
 	.validate_device = iio_trigger_validate_own_device,
 };
 
-static int ad7606_sw_mode_setup(struct iio_dev *indio_dev, unsigned int id)
+static int ad7606_sw_mode_setup(struct iio_dev *indio_dev)
 {
 	struct ad7606_state *st = iio_priv(indio_dev);
 
@@ -975,7 +1002,7 @@  static void ad7606_pwm_disable(void *data)
 }
 
 int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
-		 const char *name, unsigned int id,
+		 const struct ad7606_chip_info *chip_info,
 		 const struct ad7606_bus_ops *bops)
 {
 	struct ad7606_state *st;
@@ -1000,7 +1027,7 @@  int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
 		return dev_err_probe(dev, ret,
 				     "Failed to enable specified AVcc supply\n");
 
-	st->chip_info = &ad7606_chip_info_tbl[id];
+	st->chip_info = chip_info;
 
 	if (st->chip_info->oversampling_num) {
 		st->oversampling_avail = st->chip_info->oversampling_avail;
@@ -1023,7 +1050,7 @@  int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
 			indio_dev->info = &ad7606_info_no_os_or_range;
 	}
 	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->name = name;
+	indio_dev->name = chip_info->name;
 	indio_dev->channels = st->chip_info->channels;
 	indio_dev->num_channels = st->chip_info->num_channels;
 
@@ -1042,7 +1069,7 @@  int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
 	st->write_scale = ad7606_write_scale_hw;
 	st->write_os = ad7606_write_os_hw;
 
-	ret = ad7606_sw_mode_setup(indio_dev, id);
+	ret = ad7606_sw_mode_setup(indio_dev);
 	if (ret)
 		return ret;
 
@@ -1096,7 +1123,7 @@  int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
 					NULL,
 					&ad7606_interrupt,
 					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
-					name, indio_dev);
+					chip_info->name, indio_dev);
 	if (ret)
 		return ret;
 
diff --git a/drivers/iio/adc/ad7606.h b/drivers/iio/adc/ad7606.h
index 760cf5e2ecb6..d401d3ab37e0 100644
--- a/drivers/iio/adc/ad7606.h
+++ b/drivers/iio/adc/ad7606.h
@@ -69,6 +69,7 @@  typedef int (*ad7606_scale_setup_cb_t)(struct ad7606_state *st,
 /**
  * struct ad7606_chip_info - chip specific information
  * @channels:		channel specification
+ * @name		device name
  * @num_channels:	number of channels
  * @scale_setup_cb:	callback to setup the scales for each channel
  * @oversampling_avail	pointer to the array which stores the available
@@ -80,6 +81,7 @@  typedef int (*ad7606_scale_setup_cb_t)(struct ad7606_state *st,
  */
 struct ad7606_chip_info {
 	const struct iio_chan_spec	*channels;
+	const char			*name;
 	unsigned int			num_channels;
 	ad7606_scale_setup_cb_t		scale_setup_cb;
 	const unsigned int		*oversampling_avail;
@@ -199,22 +201,30 @@  struct ad7606_bus_ops {
 	u16 (*rd_wr_cmd)(int addr, char isWriteOp);
 };
 
+/**
+ * struct ad7606_bus_info - agregate ad7606_chip_info and ad7606_bus_ops
+ * @chip_info		entry in the table of chips that describes this device
+ * @bops		bus operations (SPI or parallel)
+ */
+struct ad7606_bus_info {
+	const struct ad7606_chip_info	*chip_info;
+	const struct ad7606_bus_ops	*bops;
+};
+
 int ad7606_probe(struct device *dev, int irq, void __iomem *base_address,
-		 const char *name, unsigned int id,
+		 const struct ad7606_chip_info *info,
 		 const struct ad7606_bus_ops *bops);
 
 int ad7606_reset(struct ad7606_state *st);
 
-enum ad7606_supported_device_ids {
-	ID_AD7605_4,
-	ID_AD7606_8,
-	ID_AD7606_6,
-	ID_AD7606_4,
-	ID_AD7606B,
-	ID_AD7606C_16,
-	ID_AD7606C_18,
-	ID_AD7616,
-};
+extern const struct ad7606_chip_info ad7605_4_info;
+extern const struct ad7606_chip_info ad7606_8_info;
+extern const struct ad7606_chip_info ad7606_6_info;
+extern const struct ad7606_chip_info ad7606_4_info;
+extern const struct ad7606_chip_info ad7606b_info;
+extern const struct ad7606_chip_info ad7606c_16_info;
+extern const struct ad7606_chip_info ad7606c_18_info;
+extern const struct ad7606_chip_info ad7616_info;
 
 #ifdef CONFIG_PM_SLEEP
 extern const struct dev_pm_ops ad7606_pm_ops;
diff --git a/drivers/iio/adc/ad7606_par.c b/drivers/iio/adc/ad7606_par.c
index d651639c45eb..b87be2f1ca04 100644
--- a/drivers/iio/adc/ad7606_par.c
+++ b/drivers/iio/adc/ad7606_par.c
@@ -11,6 +11,7 @@ 
 #include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/property.h>
 #include <linux/types.h>
 
 #include <linux/iio/iio.h>
@@ -89,12 +90,20 @@  static const struct ad7606_bus_ops ad7606_par8_bops = {
 
 static int ad7606_par_probe(struct platform_device *pdev)
 {
-	const struct platform_device_id *id = platform_get_device_id(pdev);
+	const struct ad7606_chip_info *chip_info;
+	const struct platform_device_id *id;
 	struct resource *res;
 	void __iomem *addr;
 	resource_size_t remap_size;
 	int irq;
 
+	if (dev_fwnode(&pdev->dev)) {
+		chip_info = device_get_match_data(&pdev->dev);
+	} else {
+		id = platform_get_device_id(pdev);
+		chip_info = (const struct ad7606_chip_info *)id->driver_data;
+	}
+
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
 		return irq;
@@ -105,26 +114,25 @@  static int ad7606_par_probe(struct platform_device *pdev)
 
 	remap_size = resource_size(res);
 
-	return ad7606_probe(&pdev->dev, irq, addr,
-			    id->name, id->driver_data,
+	return ad7606_probe(&pdev->dev, irq, addr, chip_info,
 			    remap_size > 1 ? &ad7606_par16_bops :
 			    &ad7606_par8_bops);
 }
 
 static const struct platform_device_id ad7606_driver_ids[] = {
-	{ .name	= "ad7605-4", .driver_data = ID_AD7605_4, },
-	{ .name	= "ad7606-4", .driver_data = ID_AD7606_4, },
-	{ .name	= "ad7606-6", .driver_data = ID_AD7606_6, },
-	{ .name	= "ad7606-8", .driver_data = ID_AD7606_8, },
+	{ .name	= "ad7605-4", .driver_data = (kernel_ulong_t)&ad7605_4_info, },
+	{ .name	= "ad7606-4", .driver_data = (kernel_ulong_t)&ad7606_4_info, },
+	{ .name	= "ad7606-6", .driver_data = (kernel_ulong_t)&ad7606_6_info, },
+	{ .name	= "ad7606-8", .driver_data = (kernel_ulong_t)&ad7606_8_info, },
 	{ }
 };
 MODULE_DEVICE_TABLE(platform, ad7606_driver_ids);
 
 static const struct of_device_id ad7606_of_match[] = {
-	{ .compatible = "adi,ad7605-4" },
-	{ .compatible = "adi,ad7606-4" },
-	{ .compatible = "adi,ad7606-6" },
-	{ .compatible = "adi,ad7606-8" },
+	{ .compatible = "adi,ad7605-4", .data = &ad7605_4_info },
+	{ .compatible = "adi,ad7606-4", .data = &ad7606_4_info },
+	{ .compatible = "adi,ad7606-6", .data = &ad7606_6_info },
+	{ .compatible = "adi,ad7606-8", .data = &ad7606_8_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ad7606_of_match);
diff --git a/drivers/iio/adc/ad7606_spi.c b/drivers/iio/adc/ad7606_spi.c
index d12e55123888..33c237d6c411 100644
--- a/drivers/iio/adc/ad7606_spi.c
+++ b/drivers/iio/adc/ad7606_spi.c
@@ -321,11 +321,11 @@  static int ad7606c_18_sw_mode_config(struct iio_dev *indio_dev)
 	return 0;
 }
 
-static const struct ad7606_bus_ops ad7606_spi_bops = {
+const struct ad7606_bus_ops ad7606_spi_bops = {
 	.read_block = ad7606_spi_read_block,
 };
 
-static const struct ad7606_bus_ops ad7616_spi_bops = {
+const struct ad7606_bus_ops ad7616_spi_bops = {
 	.read_block = ad7606_spi_read_block,
 	.reg_read = ad7606_spi_reg_read,
 	.reg_write = ad7606_spi_reg_write,
@@ -334,7 +334,7 @@  static const struct ad7606_bus_ops ad7616_spi_bops = {
 	.sw_mode_config = ad7616_sw_mode_config,
 };
 
-static const struct ad7606_bus_ops ad7606B_spi_bops = {
+const struct ad7606_bus_ops ad7606b_spi_bops = {
 	.read_block = ad7606_spi_read_block,
 	.reg_read = ad7606_spi_reg_read,
 	.reg_write = ad7606_spi_reg_write,
@@ -343,7 +343,7 @@  static const struct ad7606_bus_ops ad7606B_spi_bops = {
 	.sw_mode_config = ad7606B_sw_mode_config,
 };
 
-static const struct ad7606_bus_ops ad7606c_18_spi_bops = {
+const struct ad7606_bus_ops ad7606c_18_spi_bops = {
 	.read_block = ad7606_spi_read_block18to32,
 	.reg_read = ad7606_spi_reg_read,
 	.reg_write = ad7606_spi_reg_write,
@@ -352,54 +352,76 @@  static const struct ad7606_bus_ops ad7606c_18_spi_bops = {
 	.sw_mode_config = ad7606c_18_sw_mode_config,
 };
 
+static const struct ad7606_bus_info ad7605_4_bus_info = {
+	.chip_info = &ad7605_4_info,
+	.bops = &ad7606_spi_bops,
+};
+
+static const struct ad7606_bus_info ad7606_8_bus_info = {
+	.chip_info = &ad7606_8_info,
+	.bops = &ad7606_spi_bops,
+};
+
+static const struct ad7606_bus_info ad7606_6_bus_info = {
+	.chip_info = &ad7606_6_info,
+	.bops = &ad7606_spi_bops,
+};
+
+const struct ad7606_bus_info ad7606_4_bus_info = {
+	.chip_info = &ad7606_4_info,
+	.bops = &ad7606_spi_bops,
+};
+
+const struct ad7606_bus_info ad7606b_bus_info = {
+	.chip_info = &ad7606b_info,
+	.bops = &ad7606b_spi_bops,
+};
+
+const struct ad7606_bus_info ad7606c_16_bus_info = {
+	.chip_info = &ad7606c_16_info,
+	.bops = &ad7606b_spi_bops,
+};
+
+const struct ad7606_bus_info ad7606c_18_bus_info = {
+	.chip_info = &ad7606c_18_info,
+	.bops = &ad7606c_18_spi_bops,
+};
+
+const struct ad7606_bus_info ad7616_bus_info = {
+	.chip_info = &ad7616_info,
+	.bops = &ad7616_spi_bops,
+};
+
 static int ad7606_spi_probe(struct spi_device *spi)
 {
-	const struct spi_device_id *id = spi_get_device_id(spi);
-	const struct ad7606_bus_ops *bops;
-
-	switch (id->driver_data) {
-	case ID_AD7616:
-		bops = &ad7616_spi_bops;
-		break;
-	case ID_AD7606B:
-	case ID_AD7606C_16:
-		bops = &ad7606B_spi_bops;
-		break;
-	case ID_AD7606C_18:
-		bops = &ad7606c_18_spi_bops;
-		break;
-	default:
-		bops = &ad7606_spi_bops;
-		break;
-	}
+	const struct ad7606_bus_info *bus_info = spi_get_device_match_data(spi);
 
 	return ad7606_probe(&spi->dev, spi->irq, NULL,
-			    id->name, id->driver_data,
-			    bops);
+			    bus_info->chip_info, bus_info->bops);
 }
 
 static const struct spi_device_id ad7606_id_table[] = {
-	{ "ad7605-4", ID_AD7605_4 },
-	{ "ad7606-4", ID_AD7606_4 },
-	{ "ad7606-6", ID_AD7606_6 },
-	{ "ad7606-8", ID_AD7606_8 },
-	{ "ad7606b",  ID_AD7606B },
-	{ "ad7606c-16",  ID_AD7606C_16 },
-	{ "ad7606c-18",  ID_AD7606C_18 },
-	{ "ad7616",   ID_AD7616 },
+	{ "ad7605-4", (kernel_ulong_t)&ad7605_4_bus_info },
+	{ "ad7606-4", (kernel_ulong_t)&ad7606_4_bus_info },
+	{ "ad7606-6", (kernel_ulong_t)&ad7606_6_bus_info },
+	{ "ad7606-8", (kernel_ulong_t)&ad7606_8_bus_info },
+	{ "ad7606b",  (kernel_ulong_t)&ad7606b_bus_info },
+	{ "ad7606c-16", (kernel_ulong_t)&ad7606c_16_bus_info },
+	{ "ad7606c-18", (kernel_ulong_t)&ad7606c_18_bus_info },
+	{ "ad7616",   (kernel_ulong_t)&ad7616_bus_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(spi, ad7606_id_table);
 
 static const struct of_device_id ad7606_of_match[] = {
-	{ .compatible = "adi,ad7605-4" },
-	{ .compatible = "adi,ad7606-4" },
-	{ .compatible = "adi,ad7606-6" },
-	{ .compatible = "adi,ad7606-8" },
-	{ .compatible = "adi,ad7606b" },
-	{ .compatible = "adi,ad7606c-16" },
-	{ .compatible = "adi,ad7606c-18" },
-	{ .compatible = "adi,ad7616" },
+	{ .compatible = "adi,ad7605-4", .data = &ad7605_4_bus_info },
+	{ .compatible = "adi,ad7606-4", .data = &ad7606_4_bus_info },
+	{ .compatible = "adi,ad7606-6", .data = &ad7606_6_bus_info },
+	{ .compatible = "adi,ad7606-8", .data = &ad7606_8_bus_info },
+	{ .compatible = "adi,ad7606b", .data = &ad7606b_bus_info },
+	{ .compatible = "adi,ad7606c-16", .data = &ad7606c_16_bus_info },
+	{ .compatible = "adi,ad7606c-18", .data = &ad7606c_18_bus_info },
+	{ .compatible = "adi,ad7616", .data = &ad7616_bus_info },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ad7606_of_match);