Merge tag 'iio-for-6.7a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next

Jonathan writes:

IIO: 1st set of new device support, features and cleanup for 6.7

Particularly great to see a resolver driver move out of staging via a
massive set of changes.  Only took 13 years :)

One small patch added then reverted due to a report of test breakage
(ashai-kasei,ak8975: Drop deprecated enums.)

An immutable branch was used for some hid-senors changes in case
there was a need to take them into the HID tree as well.

New device support
-----------------

adi,hmc425a
  - Add support for HMC540SLP3E broadband 4-bit digital attenuator.
kionix,kx022a
  - Add support for the kx132-1211 accelerometer. Require significant
    driver rework to enable this including add a chip type specific
    structure to deal with the chip differences.
  - Add support for the kx132acr-lbz accelerometer (subset of the kx022a
    feature set).
lltc,ltc2309
  - New driver for this 8 channel ADC.
microchip,mcp3911
  - Add support for rest of mcp391x family of ADCs (there are various
    differences beyond simple channel count variation.
    Series includes some general driver cleanup.
microchip,mcp3564
  - New driver for MCP3461, MCP3462, MCP3464, MCP3541, MCP3562, MCP3564
    and their R variants of 16/24bit ADCs. A few minor fixed followed.
rohm,bu1390
  - New driver for this pressure sensor.

Staging graduation
------------------

adi,ad1210 (after 13 or so years :)
  - More or less a complete (step-wise) rewrite of this resolver driver
    to bring it up to date with modern IIO standards.  The fault signal
    handling mapping to event channels was particularly complex and
    significant part of the changes.

Features
--------

iio-core
 - Add chromacity and color temperature channel types.
adi,ad7192
  - Oversampling ratio control (called fast settling in datasheet).
adi,adis16475
  - Add core support and then driver support for delta angle and delta
    velocity channels. These are intended for summation to establish
    angle and velocity changes over larger timescales.  Fix was
    needed for alignment after the temperature channel.  Further fix
    reduced set of devices for which the buffer support was applicable
    as seems burst reads don't cover these on all devices.
hid-sensors-als
  - Chromacity and color temperatures support including in amd sfh.
stx104
  - Add support for counter subsystem to this multipurpose device.
ti,twl6030
  - Add missing device tree binding description.

Clean up and minor fixes.
------------------------

treewide
  - Drop some unused declarations across IIO.
  - Make more use of device_get_match_data() instead of OF specific
    approaches.
Similar cleanup to sets of drivers.
  - Stop platform remove callbacks returning anything by using the
    temporary remove_new() callback.
  - Use i2c_get_match_data() to cope nicely with all types of ID table
    entry.
  - Use device_get_match_data() for various platform device to cope
    with more types of firmware.
  - Convert from enum to pointer in ID tables allowing use of
    i2c_get_match_data().
  - Fix sorting on some ID tables.
  - Include specific string helper headers rather than simply string_helpers.h
docs
  - Better description of the ordering requirements etc for
    available_scan_masks.
tools
  - Handle alignment of mixed sizes where the last element isn't the biggest
    correctly. Seems that doesn't happen often!
adi,ad2s1210
  - Lots of work from David Lechner on this driver including a few fixes
    that are going with the rework to avoid slowing that down.
adi,ad4310
  - Replace deprecated devm_clk_register()
adi,ad74413r
  - Bring the channel function setting inline with the datasheet.
adi,ad7192
  - Change to FIELD_PREP(), FIELD_GET().
  - Calculate f_order from the sinc filter and chop filter states.
  - Move more per chip config into data in struct ad7192_chip_info
  - Cleanup unused parameter in channel macros.
adi,adf4350
  - Make use of devm_* to simplify error handling for many of the setup
    calls in probe() / tear down in remove() and error paths.  Some more
    work to be done on this one.
  - Use dev_err_probe() for errors in probe() callback.
adi,adf4413
  - Typo in function name prefix.
adi,adxl345
  - Add channel scale to the chip type specific structure and drop
    using a type field previously used for indirection.
asahi,ak8985
  - Fix a mismatch introduced when switching from enum->pointers
    in the match tables.
amlogic,meson
  - Expand error logging during probe.
invensense,mpu6050
  - Support level-shifter control. Whilst no one is sure exactly what this
    is doing it is needed for some old boards.
  - Document mount-matrix dt-binding.
mediatek,mt6577
  - Use devm_clk_get_enabled() to replace open coded version and move
    everything over to being device managed. Drop now empty remove()
    callback. Fix follows to put the drvdata back.
  - Use dev_err_probe() for error reporting in probe() callback.
memsic,mxc4005
  - Add of_match_table.
microchip,mcp4725
  - Move various chip specific data from being looked up by chip ID to
    data in the chip type specific structure.
silicon-labs,si7005
  - Add of_match_table and entry in trivial-devices.yaml
st,lsm6dsx
  - Add missing mount-matrix dt binding documentation.
st,spear
  - Use devm_clk_get_enabled() and some other devm calls to move everything
    over to being device managed.  Drop now empty remove() callback.
  - Use dev_err_probe() to better handled deferred probing and tidy up
    error reporting in probe() callback.
st,stm32-adc
  - Add a bit of additional checking in probe() to protect against a NULL
    pointer (no known path to trigger it today).
  - Replace deprecated strncpy()
ti,ads1015
  - Allow for edge triggers.
  - Document interrupt in dt-bindings.

* tag 'iio-for-6.7a' of https://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (201 commits)
  iio: Use device_get_match_data()
  iio: adc: MCP3564: fix warn: unsigned '__x' is never less than zero.
  dt-bindings: trivial-devices: add silabs,si7005
  iio: si7005: Add device tree support
  drivers: imu: adis16475.c: Remove scan index from delta channels
  dt-bindings: iio: imu: st,lsm6dsx: add mount-matrix property
  iio: resolver: ad2s1210: remove of_match_ptr()
  iio: resolver: ad2s1210: remove DRV_NAME macro
  iio: resolver: ad2s1210: move out of staging
  staging: iio: resolver: ad2s1210: simplify code with guard(mutex)
  staging: iio: resolver: ad2s1210: clear faults after soft reset
  staging: iio: resolver: ad2s1210: refactor sample toggle
  staging: iio: resolver: ad2s1210: remove fault attribute
  staging: iio: resolver: ad2s1210: add label attribute support
  staging: iio: resolver: ad2s1210: add register/fault support summary
  staging: iio: resolver: ad2s1210: implement fault events
  iio: event: add optional event label support
  staging: iio: resolver: ad2s1210: rename DOS reset min/max attrs
  staging: iio: resolver: ad2s1210: convert DOS mismatch threshold to event attr
  staging: iio: resolver: ad2s1210: convert DOS overrange threshold to event attr
  ...

7 files changed, 65 insertions, 67 deletions

diff --git a/drivers/iio/dac/dpot-dac.c b/drivers/iio/dac/dpot-dac.c
index 83ce9489259c..7332064d0852 100644
--- a/drivers/iio/dac/dpot-dac.c
+++ b/drivers/iio/dac/dpot-dac.c
@@ -226,15 +226,13 @@ disable_reg:
 	return ret;
 }
 
-static int dpot_dac_remove(struct platform_device *pdev)
+static void dpot_dac_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct dpot_dac *dac = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
 	regulator_disable(dac->vref);
-
-	return 0;
 }
 
 static const struct of_device_id dpot_dac_match[] = {
@@ -245,7 +243,7 @@ MODULE_DEVICE_TABLE(of, dpot_dac_match);
 
 static struct platform_driver dpot_dac_driver = {
 	.probe = dpot_dac_probe,
-	.remove = dpot_dac_remove,
+	.remove_new = dpot_dac_remove,
 	.driver = {
 		.name = "iio-dpot-dac",
 		.of_match_table = dpot_dac_match,
diff --git a/drivers/iio/dac/lpc18xx_dac.c b/drivers/iio/dac/lpc18xx_dac.c
index 60467c6f2c6e..b3aa4443a6a4 100644
--- a/drivers/iio/dac/lpc18xx_dac.c
+++ b/drivers/iio/dac/lpc18xx_dac.c
@@ -165,7 +165,7 @@ dis_reg:
 	return ret;
 }
 
-static int lpc18xx_dac_remove(struct platform_device *pdev)
+static void lpc18xx_dac_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct lpc18xx_dac *dac = iio_priv(indio_dev);
@@ -175,8 +175,6 @@ static int lpc18xx_dac_remove(struct platform_device *pdev)
 	writel(0, dac->base + LPC18XX_DAC_CTRL);
 	clk_disable_unprepare(dac->clk);
 	regulator_disable(dac->vref);
-
-	return 0;
 }
 
 static const struct of_device_id lpc18xx_dac_match[] = {
@@ -187,7 +185,7 @@ MODULE_DEVICE_TABLE(of, lpc18xx_dac_match);
 
 static struct platform_driver lpc18xx_dac_driver = {
 	.probe	= lpc18xx_dac_probe,
-	.remove	= lpc18xx_dac_remove,
+	.remove_new = lpc18xx_dac_remove,
 	.driver	= {
 		.name = "lpc18xx-dac",
 		.of_match_table = lpc18xx_dac_match,
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index f4a3124d29f2..25bb1c0490af 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -30,9 +30,14 @@
 #define MCP472X_REF_VREF_UNBUFFERED	0x02
 #define MCP472X_REF_VREF_BUFFERED	0x03
 
+struct mcp4725_chip_info {
+	const struct iio_chan_spec *chan_spec;
+	u8 dac_reg_offset;
+	bool use_ext_ref_voltage;
+};
+
 struct mcp4725_data {
 	struct i2c_client *client;
-	int id;
 	unsigned ref_mode;
 	bool vref_buffered;
 	u16 dac_value;
@@ -384,6 +389,7 @@ static int mcp4725_probe_dt(struct device *dev,
 static int mcp4725_probe(struct i2c_client *client)
 {
 	const struct i2c_device_id *id = i2c_client_get_device_id(client);
+	const struct mcp4725_chip_info *info;
 	struct mcp4725_data *data;
 	struct iio_dev *indio_dev;
 	struct mcp4725_platform_data *pdata, pdata_dt;
@@ -398,10 +404,7 @@ static int mcp4725_probe(struct i2c_client *client)
 	data = iio_priv(indio_dev);
 	i2c_set_clientdata(client, indio_dev);
 	data->client = client;
-	if (dev_fwnode(&client->dev))
-		data->id = (uintptr_t)device_get_match_data(&client->dev);
-	else
-		data->id = id->driver_data;
+	info = i2c_get_match_data(client);
 	pdata = dev_get_platdata(&client->dev);
 
 	if (!pdata) {
@@ -414,7 +417,7 @@ static int mcp4725_probe(struct i2c_client *client)
 		pdata = &pdata_dt;
 	}
 
-	if (data->id == MCP4725 && pdata->use_vref) {
+	if (info->use_ext_ref_voltage && pdata->use_vref) {
 		dev_err(&client->dev,
 			"external reference is unavailable on MCP4725");
 		return -EINVAL;
@@ -455,12 +458,12 @@ static int mcp4725_probe(struct i2c_client *client)
 
 	indio_dev->name = id->name;
 	indio_dev->info = &mcp4725_info;
-	indio_dev->channels = &mcp472x_channel[id->driver_data];
+	indio_dev->channels = info->chan_spec;
 	indio_dev->num_channels = 1;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
 	/* read current DAC value and settings */
-	err = i2c_master_recv(client, inbuf, data->id == MCP4725 ? 3 : 4);
+	err = i2c_master_recv(client, inbuf, info->dac_reg_offset);
 
 	if (err < 0) {
 		dev_err(&client->dev, "failed to read DAC value");
@@ -470,10 +473,10 @@ static int mcp4725_probe(struct i2c_client *client)
 	data->powerdown = pd > 0;
 	data->powerdown_mode = pd ? pd - 1 : 2; /* largest resistor to gnd */
 	data->dac_value = (inbuf[1] << 4) | (inbuf[2] >> 4);
-	if (data->id == MCP4726)
+	if (!info->use_ext_ref_voltage)
 		ref = (inbuf[3] >> 3) & 0x3;
 
-	if (data->id == MCP4726 && ref != data->ref_mode) {
+	if (!info->use_ext_ref_voltage && ref != data->ref_mode) {
 		dev_info(&client->dev,
 			"voltage reference mode differs (conf: %u, eeprom: %u), setting %u",
 			data->ref_mode, ref, data->ref_mode);
@@ -510,9 +513,20 @@ static void mcp4725_remove(struct i2c_client *client)
 	regulator_disable(data->vdd_reg);
 }
 
+static const struct mcp4725_chip_info mcp4725 = {
+	.chan_spec = &mcp472x_channel[MCP4725],
+	.dac_reg_offset = 3,
+	.use_ext_ref_voltage = true,
+};
+
+static const struct mcp4725_chip_info mcp4726 = {
+	.chan_spec = &mcp472x_channel[MCP4726],
+	.dac_reg_offset = 4,
+};
+
 static const struct i2c_device_id mcp4725_id[] = {
-	{ "mcp4725", MCP4725 },
-	{ "mcp4726", MCP4726 },
+	{ "mcp4725", (kernel_ulong_t)&mcp4725 },
+	{ "mcp4726", (kernel_ulong_t)&mcp4726 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, mcp4725_id);
@@ -520,11 +534,11 @@ MODULE_DEVICE_TABLE(i2c, mcp4725_id);
 static const struct of_device_id mcp4725_of_match[] = {
 	{
 		.compatible = "microchip,mcp4725",
-		.data = (void *)MCP4725
+		.data = &mcp4725
 	},
 	{
 		.compatible = "microchip,mcp4726",
-		.data = (void *)MCP4726
+		.data = &mcp4726
 	},
 	{ }
 };
diff --git a/drivers/iio/dac/stm32-dac-core.c b/drivers/iio/dac/stm32-dac-core.c
index 83bf184e3adc..e150ac729154 100644
--- a/drivers/iio/dac/stm32-dac-core.c
+++ b/drivers/iio/dac/stm32-dac-core.c
@@ -9,9 +9,12 @@
 
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
+#include <linux/property.h>
 #include <linux/regulator/consumer.h>
 #include <linux/reset.h>
 
@@ -94,16 +97,12 @@ static int stm32_dac_probe(struct platform_device *pdev)
 	struct reset_control *rst;
 	int ret;
 
-	if (!dev->of_node)
-		return -ENODEV;
-
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 	platform_set_drvdata(pdev, &priv->common);
 
-	cfg = (const struct stm32_dac_cfg *)
-		of_match_device(dev->driver->of_match_table, dev)->data;
+	cfg = device_get_match_data(dev);
 
 	mmio = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(mmio))
@@ -183,7 +182,7 @@ err_pm_stop:
 	return ret;
 }
 
-static int stm32_dac_remove(struct platform_device *pdev)
+static void stm32_dac_remove(struct platform_device *pdev)
 {
 	pm_runtime_get_sync(&pdev->dev);
 	of_platform_depopulate(&pdev->dev);
@@ -191,8 +190,6 @@ static int stm32_dac_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
-
-	return 0;
 }
 
 static int stm32_dac_core_resume(struct device *dev)
@@ -249,7 +246,7 @@ MODULE_DEVICE_TABLE(of, stm32_dac_of_match);
 
 static struct platform_driver stm32_dac_driver = {
 	.probe = stm32_dac_probe,
-	.remove = stm32_dac_remove,
+	.remove_new = stm32_dac_remove,
 	.driver = {
 		.name = "stm32-dac-core",
 		.of_match_table = stm32_dac_of_match,
diff --git a/drivers/iio/dac/stm32-dac.c b/drivers/iio/dac/stm32-dac.c
index 15eb44075107..5a722f307e7e 100644
--- a/drivers/iio/dac/stm32-dac.c
+++ b/drivers/iio/dac/stm32-dac.c
@@ -11,12 +11,13 @@
 #include <linux/delay.h>
 #include <linux/iio/iio.h>
 #include <linux/kernel.h>
+#include <linux/kstrtox.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
-#include <linux/string_helpers.h>
+#include <linux/string_choices.h>
 
 #include "stm32-dac-core.h"
 
@@ -361,7 +362,7 @@ err_pm_put:
 	return ret;
 }
 
-static int stm32_dac_remove(struct platform_device *pdev)
+static void stm32_dac_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 
@@ -370,8 +371,6 @@ static int stm32_dac_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
-
-	return 0;
 }
 
 static int stm32_dac_suspend(struct device *dev)
@@ -399,7 +398,7 @@ MODULE_DEVICE_TABLE(of, stm32_dac_of_match);
 
 static struct platform_driver stm32_dac_driver = {
 	.probe = stm32_dac_probe,
-	.remove = stm32_dac_remove,
+	.remove_new = stm32_dac_remove,
 	.driver = {
 		.name = "stm32-dac",
 		.of_match_table = stm32_dac_of_match,
diff --git a/drivers/iio/dac/ti-dac5571.c b/drivers/iio/dac/ti-dac5571.c
index bab11b9adc25..efb1269a77c1 100644
--- a/drivers/iio/dac/ti-dac5571.c
+++ b/drivers/iio/dac/ti-dac5571.c
@@ -313,7 +313,6 @@ static int dac5571_probe(struct i2c_client *client)
 	const struct dac5571_spec *spec;
 	struct dac5571_data *data;
 	struct iio_dev *indio_dev;
-	enum chip_id chip_id;
 	int ret, i;
 
 	indio_dev = devm_iio_device_alloc(dev, sizeof(*data));
@@ -329,12 +328,7 @@ static int dac5571_probe(struct i2c_client *client)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = dac5571_channels;
 
-	if (dev_fwnode(dev))
-		chip_id = (uintptr_t)device_get_match_data(dev);
-	else
-		chip_id = id->driver_data;
-
-	spec = &dac5571_spec[chip_id];
+	spec = i2c_get_match_data(client);
 
 	indio_dev->num_channels = spec->num_channels;
 	data->spec = spec;
@@ -392,31 +386,31 @@ static void dac5571_remove(struct i2c_client *i2c)
 }
 
 static const struct of_device_id dac5571_of_id[] = {
-	{.compatible = "ti,dac5571", .data = (void *)single_8bit},
-	{.compatible = "ti,dac6571", .data = (void *)single_10bit},
-	{.compatible = "ti,dac7571", .data = (void *)single_12bit},
-	{.compatible = "ti,dac5574", .data = (void *)quad_8bit},
-	{.compatible = "ti,dac6574", .data = (void *)quad_10bit},
-	{.compatible = "ti,dac7574", .data = (void *)quad_12bit},
-	{.compatible = "ti,dac5573", .data = (void *)quad_8bit},
-	{.compatible = "ti,dac6573", .data = (void *)quad_10bit},
-	{.compatible = "ti,dac7573", .data = (void *)quad_12bit},
-	{.compatible = "ti,dac121c081", .data = (void *)single_12bit},
+	{.compatible = "ti,dac121c081", .data = &dac5571_spec[single_12bit] },
+	{.compatible = "ti,dac5571", .data = &dac5571_spec[single_8bit] },
+	{.compatible = "ti,dac6571", .data = &dac5571_spec[single_10bit] },
+	{.compatible = "ti,dac7571", .data = &dac5571_spec[single_12bit] },
+	{.compatible = "ti,dac5574", .data = &dac5571_spec[quad_8bit] },
+	{.compatible = "ti,dac6574", .data = &dac5571_spec[quad_10bit] },
+	{.compatible = "ti,dac7574", .data = &dac5571_spec[quad_12bit] },
+	{.compatible = "ti,dac5573", .data = &dac5571_spec[quad_8bit] },
+	{.compatible = "ti,dac6573", .data = &dac5571_spec[quad_10bit] },
+	{.compatible = "ti,dac7573", .data = &dac5571_spec[quad_12bit] },
 	{}
 };
 MODULE_DEVICE_TABLE(of, dac5571_of_id);
 
 static const struct i2c_device_id dac5571_id[] = {
-	{"dac5571", single_8bit},
-	{"dac6571", single_10bit},
-	{"dac7571", single_12bit},
-	{"dac5574", quad_8bit},
-	{"dac6574", quad_10bit},
-	{"dac7574", quad_12bit},
-	{"dac5573", quad_8bit},
-	{"dac6573", quad_10bit},
-	{"dac7573", quad_12bit},
-	{"dac121c081", single_12bit},
+	{"dac121c081", (kernel_ulong_t)&dac5571_spec[single_12bit] },
+	{"dac5571", (kernel_ulong_t)&dac5571_spec[single_8bit] },
+	{"dac6571", (kernel_ulong_t)&dac5571_spec[single_10bit] },
+	{"dac7571", (kernel_ulong_t)&dac5571_spec[single_12bit] },
+	{"dac5574", (kernel_ulong_t)&dac5571_spec[quad_8bit] },
+	{"dac6574", (kernel_ulong_t)&dac5571_spec[quad_10bit] },
+	{"dac7574", (kernel_ulong_t)&dac5571_spec[quad_12bit] },
+	{"dac5573", (kernel_ulong_t)&dac5571_spec[quad_8bit] },
+	{"dac6573", (kernel_ulong_t)&dac5571_spec[quad_10bit] },
+	{"dac7573", (kernel_ulong_t)&dac5571_spec[quad_12bit] },
 	{}
 };
 MODULE_DEVICE_TABLE(i2c, dac5571_id);
diff --git a/drivers/iio/dac/vf610_dac.c b/drivers/iio/dac/vf610_dac.c
index fc182250c622..de73bc5a1c93 100644
--- a/drivers/iio/dac/vf610_dac.c
+++ b/drivers/iio/dac/vf610_dac.c
@@ -231,7 +231,7 @@ error_iio_device_register:
 	return ret;
 }
 
-static int vf610_dac_remove(struct platform_device *pdev)
+static void vf610_dac_remove(struct platform_device *pdev)
 {
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
 	struct vf610_dac *info = iio_priv(indio_dev);
@@ -239,8 +239,6 @@ static int vf610_dac_remove(struct platform_device *pdev)
 	iio_device_unregister(indio_dev);
 	vf610_dac_exit(info);
 	clk_disable_unprepare(info->clk);
-
-	return 0;
 }
 
 static int vf610_dac_suspend(struct device *dev)
@@ -274,7 +272,7 @@ static DEFINE_SIMPLE_DEV_PM_OPS(vf610_dac_pm_ops, vf610_dac_suspend,
 
 static struct platform_driver vf610_dac_driver = {
 	.probe          = vf610_dac_probe,
-	.remove         = vf610_dac_remove,
+	.remove_new     = vf610_dac_remove,
 	.driver         = {
 		.name   = "vf610-dac",
 		.of_match_table = vf610_dac_match,