This patch adds support for KXTJ2-1009 3-axis acceleromenter sensor. KXTJ2-1009 uses the same register definitions as KXCJK-1013. The specification for KXTJ2-1009 can be downloaded from: http://www.kionix.com/sites/default/files/KXTJ2-1009%20Specifications%20Rev%204.pdf Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@xxxxxxxxxxxxxxx> Signed-off-by: Daniel Baluta <daniel.baluta@xxxxxxxxx> --- drivers/iio/accel/Kconfig | 3 +- drivers/iio/accel/kxcjk-1013.c | 111 +++++++++++++++++++++++++++++++++-------- 2 files changed, 92 insertions(+), 22 deletions(-) diff --git a/drivers/iio/accel/Kconfig b/drivers/iio/accel/Kconfig index 01b857e..df930ae 100644 --- a/drivers/iio/accel/Kconfig +++ b/drivers/iio/accel/Kconfig @@ -97,7 +97,8 @@ config KXCJK1013 select IIO_TRIGGERED_BUFFER help Say Y here if you want to build a driver for the Kionix KXCJK-1013 - triaxial acceleration sensor. This driver also supports KXCJ9-1008. + triaxial acceleration sensor. This driver also supports KXCJ9-1008 + and KXTJ2-1009. To compile this driver as a module, choose M here: the module will be called kxcjk-1013. diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c index 736231d..615fce2 100644 --- a/drivers/iio/accel/kxcjk-1013.c +++ b/drivers/iio/accel/kxcjk-1013.c @@ -85,6 +85,13 @@ #define KXCJK1013_DEFAULT_WAKE_THRES 1 +enum kx_chipset { + KXCJK1013, + KXCJ91008, + KXTJ21009, + KX_MAX_CHIPS /* this must be last */ +}; + struct kxcjk1013_data { struct i2c_client *client; struct iio_trigger *dready_trig; @@ -100,6 +107,7 @@ struct kxcjk1013_data { int ev_enable_state; bool motion_trigger_on; int64_t timestamp; + enum kx_chipset chipset; }; enum kxcjk1013_axis { @@ -133,10 +141,53 @@ static const struct { static const struct { int odr_bits; int usec; -} odr_start_up_times[] = { {0x08, 100000}, {0x09, 100000}, {0x0A, 100000}, - {0x0B, 100000}, { 0, 80000}, {0x01, 41000}, - {0x02, 21000}, {0x03, 11000}, {0x04, 6400}, - {0x05, 3900}, {0x06, 2700}, {0x07, 2100} }; +} odr_start_up_times[KX_MAX_CHIPS][12] = { + /* KXCJK-1013 */ + { + {0x08, 100000}, + {0x09, 100000}, + {0x0A, 100000}, + {0x0B, 100000}, + {0, 80000}, + {0x01, 41000}, + {0x02, 21000}, + {0x03, 11000}, + {0x04, 6400}, + {0x05, 3900}, + {0x06, 2700}, + {0x07, 2100}, + }, + /* KXCJ9-1008 */ + { + {0x08, 100000}, + {0x09, 100000}, + {0x0A, 100000}, + {0x0B, 100000}, + {0, 80000}, + {0x01, 41000}, + {0x02, 21000}, + {0x03, 11000}, + {0x04, 6400}, + {0x05, 3900}, + {0x06, 2700}, + {0x07, 2100}, + }, + /* KXCTJ2-1009 */ + { + {0x08, 1240000}, + {0x09, 621000}, + {0x0A, 309000}, + {0x0B, 151000}, + {0, 80000}, + {0x01, 41000}, + {0x02, 21000}, + {0x03, 11000}, + {0x04, 6000}, + {0x05, 4000}, + {0x06, 3000}, + {0x07, 2000}, + }, +}; static const struct { u16 scale; @@ -310,10 +361,11 @@ static int kxcjk1013_chip_init(struct kxcjk1013_data *data) static int kxcjk1013_get_startup_times(struct kxcjk1013_data *data) { int i; + int idx = data->chipset; - for (i = 0; i < ARRAY_SIZE(odr_start_up_times); ++i) { - if (odr_start_up_times[i].odr_bits == data->odr_bits) - return odr_start_up_times[i].usec; + for (i = 0; i < ARRAY_SIZE(odr_start_up_times[idx]); ++i) { + if (odr_start_up_times[idx][i].odr_bits == data->odr_bits) + return odr_start_up_times[idx][i].usec; } return KXCJK1013_MAX_STARTUP_TIME_US; @@ -1074,10 +1126,21 @@ static irqreturn_t kxcjk1013_data_rdy_trig_poll(int irq, void *private) return IRQ_HANDLED; } -static int kxcjk1013_acpi_gpio_probe(struct i2c_client *client, - struct kxcjk1013_data *data) +static const char *kxcjk1013_match_acpi_device(struct device *dev, + enum kx_chipset *chipset) { const struct acpi_device_id *id; + id = acpi_match_device(dev->driver->acpi_match_table, dev); + if (!id) + return NULL; + *chipset = (enum kx_chipset)id->driver_data; + + return dev_name(dev); +} + +static int kxcjk1013_gpio_probe(struct i2c_client *client, + struct kxcjk1013_data *data) +{ struct device *dev; struct gpio_desc *gpio; int ret; @@ -1086,12 +1149,6 @@ static int kxcjk1013_acpi_gpio_probe(struct i2c_client *client, return -EINVAL; dev = &client->dev; - if (!ACPI_HANDLE(dev)) - return -ENODEV; - - id = acpi_match_device(dev->driver->acpi_match_table, dev); - if (!id) - return -ENODEV; /* data ready gpio interrupt pin */ gpio = devm_gpiod_get_index(dev, "kxcjk1013_int", 0); @@ -1117,6 +1174,7 @@ static int kxcjk1013_probe(struct i2c_client *client, struct kxcjk1013_data *data; struct iio_dev *indio_dev; struct kxcjk_1013_platform_data *pdata; + const char *name; int ret; indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); @@ -1133,6 +1191,15 @@ static int kxcjk1013_probe(struct i2c_client *client, else data->active_high_intr = true; /* default polarity */ + if (id) { + data->chipset = (enum kx_chipset)(id->driver_data); + name = id->name; + } else if (ACPI_HANDLE(&client->dev)) { + name = kxcjk1013_match_acpi_device(&client->dev, + &data->chipset); + } else + return -ENODEV; + ret = kxcjk1013_chip_init(data); if (ret < 0) return ret; @@ -1142,12 +1209,12 @@ static int kxcjk1013_probe(struct i2c_client *client, indio_dev->dev.parent = &client->dev; indio_dev->channels = kxcjk1013_channels; indio_dev->num_channels = ARRAY_SIZE(kxcjk1013_channels); - indio_dev->name = KXCJK1013_DRV_NAME; + indio_dev->name = name; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &kxcjk1013_info; if (client->irq < 0) - client->irq = kxcjk1013_acpi_gpio_probe(client, data); + client->irq = kxcjk1013_gpio_probe(client, data); if (client->irq >= 0) { ret = devm_request_threaded_irq(&client->dev, client->irq, @@ -1325,15 +1392,17 @@ static const struct dev_pm_ops kxcjk1013_pm_ops = { }; static const struct acpi_device_id kx_acpi_match[] = { - {"KXCJ1013", 0}, - {"KXCJ1008", 0}, + {"KXCJ1013", KXCJK1013}, + {"KXCJ1008", KXCJ91008}, + {"KXTJ1009", KXTJ21009}, { }, }; MODULE_DEVICE_TABLE(acpi, kx_acpi_match); static const struct i2c_device_id kxcjk1013_id[] = { - {"kxcjk1013", 0}, - {"kxcj91008", 0}, + {"kxcjk1013", KXCJK1013}, + {"kxcj91008", KXCJ91008}, + {"kxtj21009", KXTJ21009}, {} }; -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
