From: Daniel Palmer <daniel@0x0f.com>
To: linux-iio@vger.kernel.org
Cc: daniel@0x0f.com
Subject: [RFC PATCH 2/2] iio: st-accel: Add support for Silan SC7A20 and SC7A30E
Date: Tue, 11 Aug 2020 22:48:46 +0900 [thread overview]
Message-ID: <20200811134846.3981475-3-daniel@0x0f.com> (raw)
In-Reply-To: <20200811134846.3981475-1-daniel@0x0f.com>
This chips are not from ST but seem to be clones of the ST parts.
The register and bit settings in the datasheets match those in the
LIS2DH datasheet.
---
drivers/iio/accel/st_accel.h | 4 +
drivers/iio/accel/st_accel_core.c | 159 +++++++++++++++++++++++++++++-
drivers/iio/accel/st_accel_i2c.c | 10 ++
3 files changed, 172 insertions(+), 1 deletion(-)
diff --git a/drivers/iio/accel/st_accel.h b/drivers/iio/accel/st_accel.h
index 5d356288e001..784c2df83dde 100644
--- a/drivers/iio/accel/st_accel.h
+++ b/drivers/iio/accel/st_accel.h
@@ -36,6 +36,8 @@ enum st_accel_type {
LIS3DHH,
LIS2DE12,
LIS2HH12,
+ SC7A20,
+ SC7A30E,
ST_ACCEL_MAX,
};
@@ -61,6 +63,8 @@ enum st_accel_type {
#define LIS3DE_ACCEL_DEV_NAME "lis3de"
#define LIS2DE12_ACCEL_DEV_NAME "lis2de12"
#define LIS2HH12_ACCEL_DEV_NAME "lis2hh12"
+#define SC7A20_ACCEL_DEV_NAME "sc7a20"
+#define SC7A30E_ACCEL_DEV_NAME "sc7a30e"
/**
* struct st_sensors_platform_data - default accel platform data
diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 43c50167d220..23fdbf27d44c 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -980,7 +980,164 @@ static const struct st_sensor_settings st_accel_sensors_settings[] = {
.multi_read_bit = true,
.bootime = 2,
},
-
+ {
+ .wai = 0x11,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+ .sensors_supported = {
+ [0] = SC7A20_ACCEL_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_accel_12bit_channels,
+ .odr = {
+ .addr = 0x20,
+ .mask = 0xf0,
+ .odr_avl = {
+ { .hz = 1, .value = 0x01, },
+ { .hz = 10, .value = 0x02, },
+ { .hz = 25, .value = 0x03, },
+ { .hz = 50, .value = 0x04, },
+ { .hz = 100, .value = 0x05, },
+ { .hz = 200, .value = 0x06, },
+ { .hz = 400, .value = 0x07, },
+ { .hz = 1600, .value = 0x08, },
+ },
+ },
+ .pw = {
+ .addr = 0x20,
+ .mask = 0xf0,
+ .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+ },
+ .enable_axis = {
+ .addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
+ .mask = ST_SENSORS_DEFAULT_AXIS_MASK,
+ },
+ .fs = {
+ .addr = 0x23,
+ .mask = 0x30,
+ .fs_avl = {
+ [0] = {
+ .num = ST_ACCEL_FS_AVL_2G,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(1000),
+ },
+ [1] = {
+ .num = ST_ACCEL_FS_AVL_4G,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(2000),
+ },
+ [2] = {
+ .num = ST_ACCEL_FS_AVL_8G,
+ .value = 0x02,
+ .gain = IIO_G_TO_M_S_2(4000),
+ },
+ [3] = {
+ .num = ST_ACCEL_FS_AVL_16G,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(12000),
+ },
+ },
+ },
+ .bdu = {
+ .addr = 0x23,
+ .mask = 0x80,
+ },
+ .drdy_irq = {
+ .int1 = {
+ .addr = 0x22,
+ .mask = 0x10,
+ },
+ .addr_ihl = 0x25,
+ .mask_ihl = 0x02,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
+ },
+ .sim = {
+ .addr = 0x23,
+ .value = BIT(0),
+ },
+ .multi_read_bit = true,
+ .bootime = 2,
+ },
+ {
+ .wai = 0x33,
+ .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
+ .sensors_supported = {
+ [0] = SC7A30E_ACCEL_DEV_NAME,
+ },
+ .ch = (struct iio_chan_spec *)st_accel_12bit_channels,
+ .odr = {
+ .addr = 0x20,
+ .mask = 0xf0,
+ .odr_avl = {
+ { .hz = 1, .value = 0x01, },
+ { .hz = 10, .value = 0x02, },
+ { .hz = 25, .value = 0x03, },
+ { .hz = 50, .value = 0x04, },
+ { .hz = 100, .value = 0x05, },
+ { .hz = 200, .value = 0x06, },
+ { .hz = 400, .value = 0x07, },
+ { .hz = 1600, .value = 0x08, },
+ },
+ },
+ .pw = {
+ .addr = 0x20,
+ .mask = 0xf0,
+ .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+ },
+ .enable_axis = {
+ .addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
+ .mask = ST_SENSORS_DEFAULT_AXIS_MASK,
+ },
+ .fs = {
+ .addr = 0x23,
+ .mask = 0x30,
+ .fs_avl = {
+ [0] = {
+ .num = ST_ACCEL_FS_AVL_2G,
+ .value = 0x00,
+ .gain = IIO_G_TO_M_S_2(1000),
+ },
+ [1] = {
+ .num = ST_ACCEL_FS_AVL_4G,
+ .value = 0x01,
+ .gain = IIO_G_TO_M_S_2(2000),
+ },
+ [2] = {
+ .num = ST_ACCEL_FS_AVL_8G,
+ .value = 0x02,
+ .gain = IIO_G_TO_M_S_2(4000),
+ },
+ [3] = {
+ .num = ST_ACCEL_FS_AVL_16G,
+ .value = 0x03,
+ .gain = IIO_G_TO_M_S_2(12000),
+ },
+ },
+ },
+ .bdu = {
+ .addr = 0x23,
+ .mask = 0x80,
+ },
+ .drdy_irq = {
+ .int1 = {
+ .addr = 0x22,
+ .mask = 0x10,
+ },
+ .addr_ihl = 0x25,
+ .mask_ihl = 0x02,
+ .stat_drdy = {
+ .addr = ST_SENSORS_DEFAULT_STAT_ADDR,
+ .mask = 0x07,
+ },
+ },
+ .sim = {
+ .addr = 0x23,
+ .value = BIT(0),
+ },
+ .multi_read_bit = true,
+ .bootime = 2,
+ },
};
static int st_accel_read_raw(struct iio_dev *indio_dev,
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 360e16f2cadb..2c9e91ef5e19 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -108,6 +108,14 @@ static const struct of_device_id st_accel_of_match[] = {
.compatible = "st,lis2hh12",
.data = LIS2HH12_ACCEL_DEV_NAME,
},
+ {
+ .compatible = "silan,sc7a20-accel",
+ .data = SC7A20_ACCEL_DEV_NAME,
+ },
+ {
+ .compatible = "silan,sc7a30e-accel",
+ .data = SC7A30E_ACCEL_DEV_NAME,
+ },
{},
};
MODULE_DEVICE_TABLE(of, st_accel_of_match);
@@ -143,6 +151,8 @@ static const struct i2c_device_id st_accel_id_table[] = {
{ LIS3DE_ACCEL_DEV_NAME },
{ LIS2DE12_ACCEL_DEV_NAME },
{ LIS2HH12_ACCEL_DEV_NAME },
+ { SC7A20_ACCEL_DEV_NAME },
+ { SC7A30E_ACCEL_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(i2c, st_accel_id_table);
--
2.27.0
next prev parent reply other threads:[~2020-08-11 13:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-11 13:48 [RFC PATCH 0/2] iio: st-accel: Add support for Silan clones Daniel Palmer
2020-08-11 13:48 ` [RFC PATCH 1/2] dt-bindings: vendor-prefixes: Add vendor prefix for Silan Daniel Palmer
2020-08-16 8:50 ` Jonathan Cameron
2020-08-11 13:48 ` Daniel Palmer [this message]
2020-08-16 8:52 ` [RFC PATCH 2/2] iio: st-accel: Add support for Silan SC7A20 and SC7A30E Jonathan Cameron
2020-08-16 9:27 ` Daniel Palmer
2020-08-16 9:40 ` Jonathan Cameron
2020-08-16 9:55 ` Andy Shevchenko
2020-08-16 11:59 ` Daniel Palmer
2020-08-19 18:19 ` Denis CIOCCA
2020-08-20 9:01 ` Jonathan Cameron
2020-08-20 9:17 ` Greg KH
2020-08-20 12:27 ` Daniel Palmer
2020-08-20 12:56 ` Andy Shevchenko
2020-08-20 12:34 ` Andy Shevchenko
2020-08-12 9:20 ` [RFC PATCH 0/2] iio: st-accel: Add support for Silan clones Jonathan Cameron
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