On Fri, 17 Mar 2023 00:48:37 +0100 Mehdi Djait <mehdi.djait.k@xxxxxxxxx> wrote: > Add support for the basic accelerometer features such as getting the > acceleration data via IIO. (raw reads, triggered buffer [data-ready] or > using the WMI IRQ). > > Datasheet: https://kionixfs.azureedge.net/en/document/KX132-1211-Technical-Reference-Manual-Rev-5.0.pdf > Signed-off-by: Mehdi Djait <mehdi.djait.k@xxxxxxxxx> Nothing much specific to this patch, most changes will be as a result of bringing this inline with the changes suggested for patch 2. thanks, Jonathan > --- > drivers/iio/accel/kionix-kx022a-i2c.c | 2 + > drivers/iio/accel/kionix-kx022a-spi.c | 2 + > drivers/iio/accel/kionix-kx022a.c | 126 ++++++++++++++++++++++++++ > drivers/iio/accel/kionix-kx022a.h | 53 +++++++++++ > 4 files changed, 183 insertions(+) > > diff --git a/drivers/iio/accel/kionix-kx022a-i2c.c b/drivers/iio/accel/kionix-kx022a-i2c.c > index 21c4c0ae1a68..f9b2383c43f1 100644 > --- a/drivers/iio/accel/kionix-kx022a-i2c.c > +++ b/drivers/iio/accel/kionix-kx022a-i2c.c > @@ -38,12 +38,14 @@ 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)&kx_chip_info[KX022A] }, > + { .name = "kx132", .driver_data = (kernel_ulong_t)&kx_chip_info[KX132] }, > { } > }; > MODULE_DEVICE_TABLE(i2c, kx022a_i2c_id); > > static const struct of_device_id kx022a_of_match[] = { > { .compatible = "kionix,kx022a", .data = &kx_chip_info[KX022A] }, > + { .compatible = "kionix,kx132", .data = &kx_chip_info[KX132] }, > { } > }; > 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 ec076af0f261..86a10d6d33ff 100644 > --- a/drivers/iio/accel/kionix-kx022a-spi.c > +++ b/drivers/iio/accel/kionix-kx022a-spi.c > @@ -38,12 +38,14 @@ static int kx022a_spi_probe(struct spi_device *spi) > > static const struct spi_device_id kx022a_spi_id[] = { > { .name = "kx022a", .driver_data = (kernel_ulong_t)&kx_chip_info[KX022A] }, > + { .name = "kx132", .driver_data = (kernel_ulong_t)&kx_chip_info[KX132] }, > { } > }; > MODULE_DEVICE_TABLE(spi, kx022a_spi_id); > > static const struct of_device_id kx022a_of_match[] = { > { .compatible = "kionix,kx022a", .data = &kx_chip_info[KX022A] }, > + { .compatible = "kionix,kx132", .data = &kx_chip_info[KX132] }, > { } > }; > MODULE_DEVICE_TABLE(of, kx022a_of_match); > diff --git a/drivers/iio/accel/kionix-kx022a.c b/drivers/iio/accel/kionix-kx022a.c > index 27e8642aa8f5..3cacec99f792 100644 > --- a/drivers/iio/accel/kionix-kx022a.c > +++ b/drivers/iio/accel/kionix-kx022a.c > @@ -128,6 +128,101 @@ 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_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, > + }, > +}; > + > +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_MAN_WAKE, > + .range_max = KX132_REG_MAN_WAKE, > + }, { > + .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, > +}; > + > static const struct iio_mount_matrix * > kx022a_get_mount_matrix(const struct iio_dev *idev, > const struct iio_chan_spec *chan) > @@ -175,6 +270,13 @@ 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, 0, KX132), > + KX022A_ACCEL_CHAN(Y, 1, KX132), > + KX022A_ACCEL_CHAN(Z, 2, KX132), > + 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 > @@ -249,6 +351,30 @@ const struct kx022a_chip_info kx_chip_info[] = { > .inc6 = KX022A_REG_INC6, > .xout_l = KX022A_REG_XOUT_L, > }, > + [KX132] = { > + .name = "kx132", > + .type = KX132, > + .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, > + }, > }; > EXPORT_SYMBOL_NS_GPL(kx_chip_info, IIO_KX022A); > > diff --git a/drivers/iio/accel/kionix-kx022a.h b/drivers/iio/accel/kionix-kx022a.h > index 3bb40e9f5613..7e43bdb37156 100644 > --- a/drivers/iio/accel/kionix-kx022a.h > +++ b/drivers/iio/accel/kionix-kx022a.h > @@ -90,8 +90,61 @@ > #define KX022A_REG_SELF_TEST 0x60 > #define KX022A_MAX_REGISTER 0x60 > > + Push these down into the c file. > +#define KX132_REG_WHO 0x13 > +#define KX132_ID 0x3d > + > +#define KX132_FIFO_LENGTH 86 > + > +#define KX132_REG_CNTL2 0x1c > +#define KX132_REG_CNTL 0x1b > +#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_MAN_WAKE 0x4d > + > +#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 KX_MASK_IPOL > +#define KX132_ITYP_PULSE KX_MASK_ITYP > + > +#define KX132_REG_INC4 0x25 > + > +#define KX132_REG_SELF_TEST 0x5d > +#define KX132_MAX_REGISTER 0x76 > + > enum kx022a_device_type { > KX022A, > + KX132, As mentioned in previous review, I think this would be neater done by just exporting the chip_info structures directly rather than putting them in an array. > }; > > enum {
