From: Jonathan Cameron <jic23@kernel.org>
To: Mehdi Djait <mehdi.djait.k@gmail.com>
Cc: mazziesaccount@gmail.com, krzysztof.kozlowski+dt@linaro.org,
andriy.shevchenko@linux.intel.com, linux-iio@vger.kernel.org,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [PATCH 3/3] iio: accel: Add support for Kionix/ROHM KX132 accelerometer
Date: Sun, 19 Mar 2023 16:22:07 +0000 [thread overview]
Message-ID: <20230319162207.77ef0686@jic23-huawei> (raw)
In-Reply-To: <6f31fe7dbd142c01315891f6868ff75f7d7cde32.1679009443.git.mehdi.djait.k@gmail.com>
On Fri, 17 Mar 2023 00:48:37 +0100
Mehdi Djait <mehdi.djait.k@gmail.com> 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@gmail.com>
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 {
next prev parent reply other threads:[~2023-03-19 16:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-16 23:48 [PATCH 0/3] iio: accel: Add support for Kionix/ROHM KX132 accelerometer Mehdi Djait
2023-03-16 23:48 ` [PATCH 1/3] dt-bindings: iio: Add " Mehdi Djait
2023-03-19 15:54 ` Jonathan Cameron
2023-03-21 13:22 ` Mehdi Djait
2023-03-16 23:48 ` [PATCH 2/3] iio: accel: kionix-kx022a: Add chip_info structure Mehdi Djait
2023-03-17 1:01 ` kernel test robot
2023-03-17 4:57 ` kernel test robot
2023-03-17 12:06 ` Andy Shevchenko
2023-03-18 16:12 ` Mehdi Djait
2023-03-19 16:20 ` Jonathan Cameron
2023-03-20 7:17 ` Matti Vaittinen
2023-03-20 12:24 ` Jonathan Cameron
2023-03-21 15:39 ` Mehdi Djait
2023-03-20 9:35 ` Matti Vaittinen
2023-03-20 12:02 ` Andy Shevchenko
2023-03-20 12:34 ` Jonathan Cameron
2023-03-20 12:52 ` Matti Vaittinen
2023-03-21 15:56 ` Mehdi Djait
2023-03-22 6:37 ` Matti Vaittinen
2023-03-21 1:05 ` kernel test robot
2023-03-16 23:48 ` [PATCH 3/3] iio: accel: Add support for Kionix/ROHM KX132 accelerometer Mehdi Djait
2023-03-19 16:22 ` Jonathan Cameron [this message]
2023-03-21 16:34 ` Mehdi Djait
2023-03-25 18:12 ` Jonathan Cameron
2023-03-20 9:57 ` Matti Vaittinen
2023-03-17 12:07 ` [PATCH 0/3] " Andy Shevchenko
2023-03-18 15:55 ` Mehdi Djait
2023-03-19 7:43 ` Matti Vaittinen
2023-03-21 13:16 ` Mehdi Djait
2023-03-22 7:47 ` Matti Vaittinen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230319162207.77ef0686@jic23-huawei \
--to=jic23@kernel.org \
--cc=andriy.shevchenko@linux.intel.com \
--cc=devicetree@vger.kernel.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-iio@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mazziesaccount@gmail.com \
--cc=mehdi.djait.k@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).