2023-09-16 16:41:20

by Mehdi Djait

[permalink] [raw]
Subject: [PATCH v9 0/7] iio: accel: Add support for Kionix/ROHM KX132-1211 accelerometer

Hello everyone,

Version 9 for adding support for the kx132-1211 accelerometer

KX132-1211 accelerometer is a sensor which:
- supports G-ranges of (+/-) 2, 4, 8, and 16G
- can be connected to I2C or SPI
- has internal HW FIFO buffer
- supports various ODRs (output data rates)

The KX132-1211 accelerometer is very similar to the KX022A.
One key difference is number of bits to report the number of data bytes that
have been stored in the buffer: 8 bits for KX022A vs 10 bits for
KX132-1211.

Changes in v9:
- used i2c_get_match_data
- changed the name and description of the function to get available data
in HW fifo buffer
- changed the description in the Kconfig file

Changes in v8:
- replaced min_t by min and kmalloc by kmalloc_array as suggested by Andy

Changes in v7:
- added a min_t in kx132_get_fifo_bytes to ensure that we don't that the
fifo_bytes is never bigger than the
fifo_length * KX022A_FIFO_SAMPLES_SIZE_BYTES - no matter what we read from I2C
as suggested by Matti

Changes in v6:
- check for availability of chip_info for the SPI case
- changed the order of elements in the kx022a_data struct to save memory

Changes in v5:
- moved the "kfree" call to match the reverse of what happens in
kx022a_fifo_enable() as suggested by Matti and Jonathan
- used min_t, checked for availability of chip_info and moved the
position of u16 buf_smp_lvl_mask as suggested by Andy
- introduced buf_smp_lvl_mask in Patch 7 as suggested by Jonathan

Changes in v4:
- moved the allocation of the fifo_buffer to kx022a_fifo_enable and
kx022a_fifo_disable
- some fixes to the regmap ranges of kx132-1211

Changes in v3:
- added two new patches by separating the addition of the
i2c_device_id table and the removal of blank lines from other
unrelated changes
- fixes a warning detected by the kernel test robot
- made all the changes related the chip_info in one patch

Changes in v2:
- added a new patch for warning when the device_id match fails in the
probe function
- added a new patch for the function that retrieves the number of bytes
in the buffer
- added a change to the Kconfig file in the patch adding the support
for the kx132-1211
- various fixes and modifications listed under each patch

Mehdi Djait (7):
dt-bindings: iio: Add KX132-1211 accelerometer
iio: accel: kionix-kx022a: Remove blank lines
iio: accel: kionix-kx022a: Warn on failed matches and assume
compatibility
iio: accel: kionix-kx022a: Add an i2c_device_id table
iio: accel: kionix-kx022a: Refactor driver and add chip_info structure
iio: accel: kionix-kx022a: Add a function to retrieve number of bytes
in buffer
iio: accel: Add support for Kionix/ROHM KX132-1211 accelerometer

.../bindings/iio/accel/kionix,kx022a.yaml | 12 +-
drivers/iio/accel/Kconfig | 10 +-
drivers/iio/accel/kionix-kx022a-i2c.c | 20 +-
drivers/iio/accel/kionix-kx022a-spi.c | 15 +-
drivers/iio/accel/kionix-kx022a.c | 315 ++++++++++++++----
drivers/iio/accel/kionix-kx022a.h | 112 ++++++-
6 files changed, 409 insertions(+), 75 deletions(-)

--
2.30.2


2023-09-16 16:48:56

by Mehdi Djait

[permalink] [raw]
Subject: [PATCH v9 7/7] iio: accel: Add support for Kionix/ROHM KX132-1211 accelerometer

Kionix KX132-1211 is a tri-axis 16-bit accelerometer that can support
ranges from ±2G to ±16G, digital output through I²C/SPI.
Add support for basic accelerometer features such as reading acceleration
via IIO using raw reads, triggered buffer (data-ready), or the WMI IRQ.

Datasheet: https://kionixfs.azureedge.net/en/document/KX132-1211-Technical-Reference-Manual-Rev-5.0.pdf
Acked-by: Matti Vaittinen <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Signed-off-by: Mehdi Djait <[email protected]>
---
drivers/iio/accel/Kconfig | 10 +-
drivers/iio/accel/kionix-kx022a-i2c.c | 2 +
drivers/iio/accel/kionix-kx022a-spi.c | 2 +
drivers/iio/accel/kionix-kx022a.c | 164 ++++++++++++++++++++++++++
drivers/iio/accel/kionix-kx022a.h | 54 +++++++++
5 files changed, 228 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig
index b6b45d359f28..373257d64a7e 100644
--- a/drivers/iio/accel/Kconfig
+++ b/drivers/iio/accel/Kconfig
@@ -418,8 +418,9 @@ config IIO_KX022A_SPI
select IIO_KX022A
select REGMAP_SPI
help
- Enable support for the Kionix KX022A digital tri-axis
- accelerometer connected to I2C interface.
+ Enable support for the Kionix digital tri-axis accelerometers
+ connected to SPI interface. Supported devices are:
+ KX022A, KX132-1211

config IIO_KX022A_I2C
tristate "Kionix KX022A tri-axis digital accelerometer I2C interface"
@@ -427,8 +428,9 @@ config IIO_KX022A_I2C
select IIO_KX022A
select REGMAP_I2C
help
- Enable support for the Kionix KX022A digital tri-axis
- accelerometer connected to I2C interface.
+ Enable support for the Kionix digital tri-axis accelerometers
+ connected to I2C interface. Supported devices are:
+ KX022A, KX132-1211

config KXSD9
tristate "Kionix KXSD9 Accelerometer Driver"
diff --git a/drivers/iio/accel/kionix-kx022a-i2c.c b/drivers/iio/accel/kionix-kx022a-i2c.c
index 2fdc4c1ab93f..fc53e527cae0 100644
--- a/drivers/iio/accel/kionix-kx022a-i2c.c
+++ b/drivers/iio/accel/kionix-kx022a-i2c.c
@@ -37,12 +37,14 @@ static int kx022a_i2c_probe(struct i2c_client *i2c)

static const struct i2c_device_id kx022a_i2c_id[] = {
{ .name = "kx022a", .driver_data = (kernel_ulong_t)&kx022a_chip_info },
+ { .name = "kx132-1211", .driver_data = (kernel_ulong_t)&kx132_chip_info },
{ }
};
MODULE_DEVICE_TABLE(i2c, kx022a_i2c_id);

static const struct of_device_id kx022a_of_match[] = {
{ .compatible = "kionix,kx022a", .data = &kx022a_chip_info },
+ { .compatible = "kionix,kx132-1211", .data = &kx132_chip_info },
{ }
};
MODULE_DEVICE_TABLE(of, kx022a_of_match);
diff --git a/drivers/iio/accel/kionix-kx022a-spi.c b/drivers/iio/accel/kionix-kx022a-spi.c
index c21494ade157..e7878ba67827 100644
--- a/drivers/iio/accel/kionix-kx022a-spi.c
+++ b/drivers/iio/accel/kionix-kx022a-spi.c
@@ -37,12 +37,14 @@ static int kx022a_spi_probe(struct spi_device *spi)

static const struct spi_device_id kx022a_id[] = {
{ .name = "kx022a", .driver_data = (kernel_ulong_t)&kx022a_chip_info },
+ { .name = "kx132-1211", .driver_data = (kernel_ulong_t)&kx132_chip_info },
{ }
};
MODULE_DEVICE_TABLE(spi, kx022a_id);

static const struct of_device_id kx022a_of_match[] = {
{ .compatible = "kionix,kx022a", .data = &kx022a_chip_info },
+ { .compatible = "kionix,kx132-1211", .data = &kx132_chip_info },
{ }
};
MODULE_DEVICE_TABLE(of, kx022a_of_match);
diff --git a/drivers/iio/accel/kionix-kx022a.c b/drivers/iio/accel/kionix-kx022a.c
index cc7134b1183b..c5b555094e60 100644
--- a/drivers/iio/accel/kionix-kx022a.c
+++ b/drivers/iio/accel/kionix-kx022a.c
@@ -150,6 +150,117 @@ static const struct regmap_config kx022a_regmap_config = {
.cache_type = REGCACHE_RBTREE,
};

+/* Regmap configs kx132 */
+static const struct regmap_range kx132_volatile_ranges[] = {
+ {
+ .range_min = KX132_REG_XADP_L,
+ .range_max = KX132_REG_COTR,
+ }, {
+ .range_min = KX132_REG_TSCP,
+ .range_max = KX132_REG_INT_REL,
+ }, {
+ /* The reset bit will be cleared by sensor */
+ .range_min = KX132_REG_CNTL2,
+ .range_max = KX132_REG_CNTL2,
+ }, {
+ .range_min = KX132_REG_CNTL5,
+ .range_max = KX132_REG_CNTL5,
+ }, {
+ .range_min = KX132_REG_BUF_STATUS_1,
+ .range_max = KX132_REG_BUF_READ,
+ },
+};
+
+static const struct regmap_access_table kx132_volatile_regs = {
+ .yes_ranges = &kx132_volatile_ranges[0],
+ .n_yes_ranges = ARRAY_SIZE(kx132_volatile_ranges),
+};
+
+static const struct regmap_range kx132_precious_ranges[] = {
+ {
+ .range_min = KX132_REG_INT_REL,
+ .range_max = KX132_REG_INT_REL,
+ },
+};
+
+static const struct regmap_access_table kx132_precious_regs = {
+ .yes_ranges = &kx132_precious_ranges[0],
+ .n_yes_ranges = ARRAY_SIZE(kx132_precious_ranges),
+};
+
+static const struct regmap_range kx132_read_only_ranges[] = {
+ {
+ .range_min = KX132_REG_XADP_L,
+ .range_max = KX132_REG_INT_REL,
+ }, {
+ .range_min = KX132_REG_BUF_STATUS_1,
+ .range_max = KX132_REG_BUF_STATUS_2,
+ }, {
+ .range_min = KX132_REG_BUF_READ,
+ .range_max = KX132_REG_BUF_READ,
+ }, {
+ /* Kionix reserved registers: should not be written */
+ .range_min = 0x28,
+ .range_max = 0x28,
+ }, {
+ .range_min = 0x35,
+ .range_max = 0x36,
+ }, {
+ .range_min = 0x3c,
+ .range_max = 0x48,
+ }, {
+ .range_min = 0x4e,
+ .range_max = 0x5c,
+ }, {
+ .range_min = 0x77,
+ .range_max = 0x7f,
+ },
+};
+
+static const struct regmap_access_table kx132_ro_regs = {
+ .no_ranges = &kx132_read_only_ranges[0],
+ .n_no_ranges = ARRAY_SIZE(kx132_read_only_ranges),
+};
+
+static const struct regmap_range kx132_write_only_ranges[] = {
+ {
+ .range_min = KX132_REG_SELF_TEST,
+ .range_max = KX132_REG_SELF_TEST,
+ }, {
+ .range_min = KX132_REG_BUF_CLEAR,
+ .range_max = KX132_REG_BUF_CLEAR,
+ },
+};
+
+static const struct regmap_access_table kx132_wo_regs = {
+ .no_ranges = &kx132_write_only_ranges[0],
+ .n_no_ranges = ARRAY_SIZE(kx132_write_only_ranges),
+};
+
+static const struct regmap_range kx132_noinc_read_ranges[] = {
+ {
+ .range_min = KX132_REG_BUF_READ,
+ .range_max = KX132_REG_BUF_READ,
+ },
+};
+
+static const struct regmap_access_table kx132_nir_regs = {
+ .yes_ranges = &kx132_noinc_read_ranges[0],
+ .n_yes_ranges = ARRAY_SIZE(kx132_noinc_read_ranges),
+};
+
+static const struct regmap_config kx132_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .volatile_table = &kx132_volatile_regs,
+ .rd_table = &kx132_wo_regs,
+ .wr_table = &kx132_ro_regs,
+ .rd_noinc_table = &kx132_nir_regs,
+ .precious_table = &kx132_precious_regs,
+ .max_register = KX132_MAX_REGISTER,
+ .cache_type = REGCACHE_RBTREE,
+};
+
struct kx022a_data {
struct regmap *regmap;
const struct kx022a_chip_info *chip_info;
@@ -239,6 +350,13 @@ static const struct iio_chan_spec kx022a_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(3),
};

+static const struct iio_chan_spec kx132_channels[] = {
+ KX022A_ACCEL_CHAN(X, KX132_REG_XOUT_L, 0),
+ KX022A_ACCEL_CHAN(Y, KX132_REG_YOUT_L, 1),
+ KX022A_ACCEL_CHAN(Z, KX132_REG_ZOUT_L, 2),
+ IIO_CHAN_SOFT_TIMESTAMP(3),
+};
+
/*
* The sensor HW can support ODR up to 1600 Hz, which is beyond what most of the
* Linux CPUs can handle without dropping samples. Also, the low power mode is
@@ -601,6 +719,26 @@ static int kx022a_get_fifo_bytes_available(struct kx022a_data *data)
return fifo_bytes;
}

+static int kx132_get_fifo_bytes_available(struct kx022a_data *data)
+{
+ __le16 buf_status;
+ int ret, fifo_bytes;
+
+ ret = regmap_bulk_read(data->regmap, data->chip_info->buf_status1,
+ &buf_status, sizeof(buf_status));
+ if (ret) {
+ dev_err(data->dev, "Error reading buffer status\n");
+ return ret;
+ }
+
+ fifo_bytes = le16_to_cpu(buf_status);
+ fifo_bytes &= data->chip_info->buf_smp_lvl_mask;
+ fifo_bytes = min((unsigned int)fifo_bytes, data->chip_info->fifo_length *
+ KX022A_FIFO_SAMPLES_SIZE_BYTES);
+
+ return fifo_bytes;
+}
+
static int __kx022a_fifo_flush(struct iio_dev *idev, unsigned int samples,
bool irq)
{
@@ -1024,6 +1162,32 @@ const struct kx022a_chip_info kx022a_chip_info = {
};
EXPORT_SYMBOL_NS_GPL(kx022a_chip_info, IIO_KX022A);

+const struct kx022a_chip_info kx132_chip_info = {
+ .name = "kx132-1211",
+ .regmap_config = &kx132_regmap_config,
+ .channels = kx132_channels,
+ .num_channels = ARRAY_SIZE(kx132_channels),
+ .fifo_length = KX132_FIFO_LENGTH,
+ .who = KX132_REG_WHO,
+ .id = KX132_ID,
+ .cntl = KX132_REG_CNTL,
+ .cntl2 = KX132_REG_CNTL2,
+ .odcntl = KX132_REG_ODCNTL,
+ .buf_cntl1 = KX132_REG_BUF_CNTL1,
+ .buf_cntl2 = KX132_REG_BUF_CNTL2,
+ .buf_clear = KX132_REG_BUF_CLEAR,
+ .buf_status1 = KX132_REG_BUF_STATUS_1,
+ .buf_smp_lvl_mask = KX132_MASK_BUF_SMP_LVL,
+ .buf_read = KX132_REG_BUF_READ,
+ .inc1 = KX132_REG_INC1,
+ .inc4 = KX132_REG_INC4,
+ .inc5 = KX132_REG_INC5,
+ .inc6 = KX132_REG_INC6,
+ .xout_l = KX132_REG_XOUT_L,
+ .get_fifo_bytes_available = kx132_get_fifo_bytes_available,
+};
+EXPORT_SYMBOL_NS_GPL(kx132_chip_info, IIO_KX022A);
+
int kx022a_probe_internal(struct device *dev, const struct kx022a_chip_info *chip_info)
{
static const char * const regulator_names[] = {"io-vdd", "vdd"};
diff --git a/drivers/iio/accel/kionix-kx022a.h b/drivers/iio/accel/kionix-kx022a.h
index 7ca48e6f2c49..35c548ae7eff 100644
--- a/drivers/iio/accel/kionix-kx022a.h
+++ b/drivers/iio/accel/kionix-kx022a.h
@@ -74,6 +74,57 @@
#define KX022A_REG_SELF_TEST 0x60
#define KX022A_MAX_REGISTER 0x60

+#define KX132_REG_WHO 0x13
+#define KX132_ID 0x3d
+
+#define KX132_FIFO_LENGTH 86
+
+#define KX132_REG_CNTL 0x1b
+#define KX132_REG_CNTL2 0x1c
+#define KX132_REG_CNTL5 0x1f
+#define KX132_MASK_RES BIT(6)
+#define KX132_GSEL_2 0x0
+#define KX132_GSEL_4 BIT(3)
+#define KX132_GSEL_8 BIT(4)
+#define KX132_GSEL_16 GENMASK(4, 3)
+
+#define KX132_REG_INS2 0x17
+#define KX132_MASK_INS2_WMI BIT(5)
+
+#define KX132_REG_XADP_L 0x02
+#define KX132_REG_XOUT_L 0x08
+#define KX132_REG_YOUT_L 0x0a
+#define KX132_REG_ZOUT_L 0x0c
+#define KX132_REG_COTR 0x12
+#define KX132_REG_TSCP 0x14
+#define KX132_REG_INT_REL 0x1a
+
+#define KX132_REG_ODCNTL 0x21
+
+#define KX132_REG_BTS_WUF_TH 0x4a
+
+#define KX132_REG_BUF_CNTL1 0x5e
+#define KX132_REG_BUF_CNTL2 0x5f
+#define KX132_REG_BUF_STATUS_1 0x60
+#define KX132_REG_BUF_STATUS_2 0x61
+#define KX132_MASK_BUF_SMP_LVL GENMASK(9, 0)
+#define KX132_REG_BUF_CLEAR 0x62
+#define KX132_REG_BUF_READ 0x63
+#define KX132_ODR_SHIFT 3
+#define KX132_FIFO_MAX_WMI_TH 86
+
+#define KX132_REG_INC1 0x22
+#define KX132_REG_INC5 0x26
+#define KX132_REG_INC6 0x27
+#define KX132_IPOL_LOW 0
+#define KX132_IPOL_HIGH KX022A_MASK_IPOL
+#define KX132_ITYP_PULSE KX022A_MASK_ITYP
+
+#define KX132_REG_INC4 0x25
+
+#define KX132_REG_SELF_TEST 0x5d
+#define KX132_MAX_REGISTER 0x76
+
struct device;

struct kx022a_data;
@@ -86,6 +137,7 @@ struct kx022a_data;
* @channels: pointer to iio_chan_spec array
* @num_channels: number of iio_chan_spec channels
* @fifo_length: number of 16-bit samples in a full buffer
+ * @buf_smp_lvl_mask: buffer sample level mask
* @who: WHO_AM_I register
* @id: WHO_AM_I register value
* @cntl: control register 1
@@ -111,6 +163,7 @@ struct kx022a_chip_info {
const struct iio_chan_spec *channels;
unsigned int num_channels;
unsigned int fifo_length;
+ u16 buf_smp_lvl_mask;
u8 who;
u8 id;
u8 cntl;
@@ -132,5 +185,6 @@ struct kx022a_chip_info {
int kx022a_probe_internal(struct device *dev, const struct kx022a_chip_info *chip_info);

extern const struct kx022a_chip_info kx022a_chip_info;
+extern const struct kx022a_chip_info kx132_chip_info;

#endif
--
2.30.2

2023-09-16 17:00:21

by Mehdi Djait

[permalink] [raw]
Subject: [PATCH v9 4/7] iio: accel: kionix-kx022a: Add an i2c_device_id table

Add the missing i2c device id.

Acked-by: Matti Vaittinen <[email protected]>
Signed-off-by: Mehdi Djait <[email protected]>
---
drivers/iio/accel/kionix-kx022a-i2c.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/iio/accel/kionix-kx022a-i2c.c b/drivers/iio/accel/kionix-kx022a-i2c.c
index b0ac78e85dad..c0d0b69680f9 100644
--- a/drivers/iio/accel/kionix-kx022a-i2c.c
+++ b/drivers/iio/accel/kionix-kx022a-i2c.c
@@ -30,6 +30,12 @@ static int kx022a_i2c_probe(struct i2c_client *i2c)
return kx022a_probe_internal(dev);
}

+static const struct i2c_device_id kx022a_i2c_id[] = {
+ { .name = "kx022a" },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, kx022a_i2c_id);
+
static const struct of_device_id kx022a_of_match[] = {
{ .compatible = "kionix,kx022a", },
{ }
@@ -43,6 +49,7 @@ static struct i2c_driver kx022a_i2c_driver = {
.probe_type = PROBE_PREFER_ASYNCHRONOUS,
},
.probe = kx022a_i2c_probe,
+ .id_table = kx022a_i2c_id,
};
module_i2c_driver(kx022a_i2c_driver);

--
2.30.2

2023-09-17 01:20:05

by Mehdi Djait

[permalink] [raw]
Subject: [PATCH v9 2/7] iio: accel: kionix-kx022a: Remove blank lines

Remove blank lines pointed out by the checkpatch script

Reviewed-by: Andy Shevchenko <[email protected]>
Reviewed-by: Matti Vaittinen <[email protected]>
Signed-off-by: Mehdi Djait <[email protected]>
---
drivers/iio/accel/kionix-kx022a.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/iio/accel/kionix-kx022a.c b/drivers/iio/accel/kionix-kx022a.c
index f164b09520c9..2f1e7da25460 100644
--- a/drivers/iio/accel/kionix-kx022a.c
+++ b/drivers/iio/accel/kionix-kx022a.c
@@ -341,7 +341,6 @@ static int kx022a_turn_on_off_unlocked(struct kx022a_data *data, bool on)
dev_err(data->dev, "Turn %s fail %d\n", str_on_off(on), ret);

return ret;
-
}

static int kx022a_turn_off_lock(struct kx022a_data *data)
@@ -1110,7 +1109,6 @@ int kx022a_probe_internal(struct device *dev)
if (ret)
return dev_err_probe(data->dev, ret, "Could not request IRQ\n");

-
ret = devm_iio_trigger_register(dev, indio_trig);
if (ret)
return dev_err_probe(data->dev, ret,
--
2.30.2

2023-09-17 09:48:50

by Jonathan Cameron

[permalink] [raw]
Subject: Re: [PATCH v9 0/7] iio: accel: Add support for Kionix/ROHM KX132-1211 accelerometer

On Sat, 16 Sep 2023 14:38:46 +0200
Mehdi Djait <[email protected]> wrote:

> Hello everyone,
>
> Version 9 for adding support for the kx132-1211 accelerometer
>
> KX132-1211 accelerometer is a sensor which:
> - supports G-ranges of (+/-) 2, 4, 8, and 16G
> - can be connected to I2C or SPI
> - has internal HW FIFO buffer
> - supports various ODRs (output data rates)
>
> The KX132-1211 accelerometer is very similar to the KX022A.
> One key difference is number of bits to report the number of data bytes that
> have been stored in the buffer: 8 bits for KX022A vs 10 bits for
> KX132-1211.

Series applied with some minor white space tweaks as called out for individual
patches.

Applied to the togreg branch of iio.git and initially pushed out as testing for
the autobuilders to poke at it and see what we've missed.

Thanks,

Jonathan

>
> Changes in v9:
> - used i2c_get_match_data
> - changed the name and description of the function to get available data
> in HW fifo buffer
> - changed the description in the Kconfig file
>
> Changes in v8:
> - replaced min_t by min and kmalloc by kmalloc_array as suggested by Andy
>
> Changes in v7:
> - added a min_t in kx132_get_fifo_bytes to ensure that we don't that the
> fifo_bytes is never bigger than the
> fifo_length * KX022A_FIFO_SAMPLES_SIZE_BYTES - no matter what we read from I2C
> as suggested by Matti
>
> Changes in v6:
> - check for availability of chip_info for the SPI case
> - changed the order of elements in the kx022a_data struct to save memory
>
> Changes in v5:
> - moved the "kfree" call to match the reverse of what happens in
> kx022a_fifo_enable() as suggested by Matti and Jonathan
> - used min_t, checked for availability of chip_info and moved the
> position of u16 buf_smp_lvl_mask as suggested by Andy
> - introduced buf_smp_lvl_mask in Patch 7 as suggested by Jonathan
>
> Changes in v4:
> - moved the allocation of the fifo_buffer to kx022a_fifo_enable and
> kx022a_fifo_disable
> - some fixes to the regmap ranges of kx132-1211
>
> Changes in v3:
> - added two new patches by separating the addition of the
> i2c_device_id table and the removal of blank lines from other
> unrelated changes
> - fixes a warning detected by the kernel test robot
> - made all the changes related the chip_info in one patch
>
> Changes in v2:
> - added a new patch for warning when the device_id match fails in the
> probe function
> - added a new patch for the function that retrieves the number of bytes
> in the buffer
> - added a change to the Kconfig file in the patch adding the support
> for the kx132-1211
> - various fixes and modifications listed under each patch
>
> Mehdi Djait (7):
> dt-bindings: iio: Add KX132-1211 accelerometer
> iio: accel: kionix-kx022a: Remove blank lines
> iio: accel: kionix-kx022a: Warn on failed matches and assume
> compatibility
> iio: accel: kionix-kx022a: Add an i2c_device_id table
> iio: accel: kionix-kx022a: Refactor driver and add chip_info structure
> iio: accel: kionix-kx022a: Add a function to retrieve number of bytes
> in buffer
> iio: accel: Add support for Kionix/ROHM KX132-1211 accelerometer
>
> .../bindings/iio/accel/kionix,kx022a.yaml | 12 +-
> drivers/iio/accel/Kconfig | 10 +-
> drivers/iio/accel/kionix-kx022a-i2c.c | 20 +-
> drivers/iio/accel/kionix-kx022a-spi.c | 15 +-
> drivers/iio/accel/kionix-kx022a.c | 315 ++++++++++++++----
> drivers/iio/accel/kionix-kx022a.h | 112 ++++++-
> 6 files changed, 409 insertions(+), 75 deletions(-)
>