Add support for Murata SCL3300, a 3-axis MEMS accelerometer.
Same as SCA3300, it has the accelerometer and temperature output.
Datasheet: www.murata.com/en-us/products/sensor/inclinometer/overview/lineup/scl3300
Signed-off-by: LI Qingwu <Qing-wu.Li@xxxxxxxxxxxxxxxxxxxxxxx>
---
drivers/iio/accel/sca3300.c | 30 ++++++++++++++++++++++++++++--
1 file changed, 28 insertions(+), 2 deletions(-)
diff --git a/drivers/iio/accel/sca3300.c b/drivers/iio/accel/sca3300.c
index 21bf439e5c84..9683dce21073 100644
--- a/drivers/iio/accel/sca3300.c
+++ b/drivers/iio/accel/sca3300.c
@@ -38,6 +38,7 @@
/* Device ID */
#define SCA3300_REG_WHOAMI 0x10
#define SCA3300_WHOAMI_ID 0x51
+#define SCL3300_WHOAMI_ID 0xC1
/* Device return status and mask */
#define SCA3300_VALUE_RS_ERROR 0x3
@@ -96,10 +97,18 @@ static const struct iio_chan_spec sca3300_channels[] = {
static const int sca3300_lp_freq[] = {70, 10};
static const int sca3300_lp_freq_map[] = {0, 0, 0, 1};
+static const int scl3300_lp_freq[] = {40, 70, 10};
+static const int scl3300_lp_freq_map[] = {0, 1, 2};
+
static const int sca3300_accel_scale[][2] = {{0, 370}, {0, 741}, {0, 185}};
static const int sca3300_accel_scale_map[] = {0, 1, 2, 2};
+static const int scl3300_accel_scale[][2] = {{0, 167}, {0, 333}, {0, 83}};
+static const int scl3300_accel_scale_map[] = {0, 1, 2};
+
static const int sca3300_avail_modes_map[] = {0, 1, 2, 3};
+static const int scl3300_avail_modes_map[] = {0, 1, 3};
+
static const unsigned long sca3300_scan_masks[] = {
BIT(SCA3300_ACC_X) | BIT(SCA3300_ACC_Y) | BIT(SCA3300_ACC_Z) |
BIT(SCA3300_TEMP),
@@ -159,6 +168,21 @@ static const struct sca3300_chip_info sca3300_chip_tbl[] = {
.num_avail_modes = 4,
.chip_id = SCA3300_WHOAMI_ID,
},
+ {
+ .name = "scl3300",
+ .scan_masks = sca3300_scan_masks,
+ .channels = sca3300_channels,
+ .num_channels = ARRAY_SIZE(sca3300_channels),
+ .num_accel_scales = ARRAY_SIZE(scl3300_accel_scale)*2,
+ .accel_scale = scl3300_accel_scale,
+ .accel_scale_map = scl3300_accel_scale_map,
+ .num_freqs = ARRAY_SIZE(scl3300_lp_freq),
+ .freq_table = scl3300_lp_freq,
+ .freq_map = scl3300_lp_freq_map,
+ .avail_modes_table = scl3300_avail_modes_map,
+ .num_avail_modes = 3,
+ .chip_id = SCL3300_WHOAMI_ID,
+ },
};
DECLARE_CRC8_TABLE(sca3300_crc_table);
@@ -442,9 +466,10 @@ static int sca3300_init(struct sca3300_data *sca_data,
/*
* Wait 1ms after SW-reset command.
- * Wait 15ms for settling of signal paths.
+ * Wait for the settling of signal paths,
+ * 15ms for SCA3300 and 25ms for SCL3300,
*/
- usleep_range(16e3, 50e3);
+ usleep_range(26e3, 50e3);
ret = sca3300_read_reg(sca_data, SCA3300_REG_WHOAMI, &value);
if (ret)
@@ -571,6 +596,7 @@ static int sca3300_probe(struct spi_device *spi)
static const struct of_device_id sca3300_dt_ids[] = {
{ .compatible = "murata,sca3300"},
+ { .compatible = "murata,scl3300"},
{}
};
MODULE_DEVICE_TABLE(of, sca3300_dt_ids);
--
2.25.1
