| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Srinivas Pandruvada | 5338 | 70.81% | 8 | 12.90% |
| Stephan Gerhold | 678 | 8.99% | 3 | 4.84% |
| Michał Mirosław | 557 | 7.39% | 6 | 9.68% |
| Daniel Baluta | 252 | 3.34% | 5 | 8.06% |
| Hans de Goede | 203 | 2.69% | 6 | 9.68% |
| Dmitry Osipenko | 85 | 1.13% | 1 | 1.61% |
| Irina Tirdea | 77 | 1.02% | 3 | 4.84% |
| Jonathan Cameron | 56 | 0.74% | 6 | 9.68% |
| Adriana Reus | 51 | 0.68% | 3 | 4.84% |
| ryang | 47 | 0.62% | 1 | 1.61% |
| Vlad Dogaru | 40 | 0.53% | 1 | 1.61% |
| Bastien Nocera | 35 | 0.46% | 1 | 1.61% |
| Devajith V S | 34 | 0.45% | 1 | 1.61% |
| he, bo | 17 | 0.23% | 1 | 1.61% |
| Gwendal Grignou | 12 | 0.16% | 1 | 1.61% |
| Uwe Kleine-König | 10 | 0.13% | 3 | 4.84% |
| Luís Ferreira | 6 | 0.08% | 1 | 1.61% |
| Christophe Chapuis | 6 | 0.08% | 1 | 1.61% |
| Antonio Ospite | 6 | 0.08% | 1 | 1.61% |
| Valentin Manea | 6 | 0.08% | 1 | 1.61% |
| Dmitry Rokosov | 5 | 0.07% | 1 | 1.61% |
| Miaoqian Lin | 4 | 0.05% | 1 | 1.61% |
| Grégor Boirie | 3 | 0.04% | 1 | 1.61% |
| Mohan Kumar | 3 | 0.04% | 1 | 1.61% |
| Rafael J. Wysocki | 2 | 0.03% | 1 | 1.61% |
| Thomas Gleixner | 2 | 0.03% | 1 | 1.61% |
| Octavian Purdila | 2 | 0.03% | 1 | 1.61% |
| wangjianli | 1 | 0.01% | 1 | 1.61% |
| Total | 7538 | 62 |
// SPDX-License-Identifier: GPL-2.0-only /* * KXCJK-1013 3-axis accelerometer driver * Copyright (c) 2014, Intel Corporation. */ #include <linux/module.h> #include <linux/i2c.h> #include <linux/interrupt.h> #include <linux/delay.h> #include <linux/bitops.h> #include <linux/slab.h> #include <linux/string.h> #include <linux/acpi.h> #include <linux/pm.h> #include <linux/pm_runtime.h> #include <linux/regulator/consumer.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> #include <linux/iio/buffer.h> #include <linux/iio/trigger.h> #include <linux/iio/events.h> #include <linux/iio/trigger_consumer.h> #include <linux/iio/triggered_buffer.h> #include <linux/iio/accel/kxcjk_1013.h> #define KXCJK1013_DRV_NAME "kxcjk1013" #define KXCJK1013_IRQ_NAME "kxcjk1013_event" #define KXTF9_REG_HP_XOUT_L 0x00 #define KXTF9_REG_HP_XOUT_H 0x01 #define KXTF9_REG_HP_YOUT_L 0x02 #define KXTF9_REG_HP_YOUT_H 0x03 #define KXTF9_REG_HP_ZOUT_L 0x04 #define KXTF9_REG_HP_ZOUT_H 0x05 #define KXCJK1013_REG_XOUT_L 0x06 /* * From low byte X axis register, all the other addresses of Y and Z can be * obtained by just applying axis offset. The following axis defines are just * provide clarity, but not used. */ #define KXCJK1013_REG_XOUT_H 0x07 #define KXCJK1013_REG_YOUT_L 0x08 #define KXCJK1013_REG_YOUT_H 0x09 #define KXCJK1013_REG_ZOUT_L 0x0A #define KXCJK1013_REG_ZOUT_H 0x0B #define KXCJK1013_REG_DCST_RESP 0x0C #define KXCJK1013_REG_WHO_AM_I 0x0F #define KXTF9_REG_TILT_POS_CUR 0x10 #define KXTF9_REG_TILT_POS_PREV 0x11 #define KXTF9_REG_INT_SRC1 0x15 #define KXTF9_REG_INT_SRC2 0x16 #define KXCJK1013_REG_INT_SRC1 0x16 #define KXCJK1013_REG_INT_SRC2 0x17 #define KXCJK1013_REG_STATUS_REG 0x18 #define KXCJK1013_REG_INT_REL 0x1A #define KXCJK1013_REG_CTRL1 0x1B #define KXTF9_REG_CTRL2 0x1C #define KXTF9_REG_CTRL3 0x1D #define KXCJK1013_REG_CTRL2 0x1D #define KXCJK1013_REG_INT_CTRL1 0x1E #define KXCJK1013_REG_INT_CTRL2 0x1F #define KXTF9_REG_INT_CTRL3 0x20 #define KXCJK1013_REG_DATA_CTRL 0x21 #define KXTF9_REG_TILT_TIMER 0x28 #define KXCJK1013_REG_WAKE_TIMER 0x29 #define KXTF9_REG_TDT_TIMER 0x2B #define KXTF9_REG_TDT_THRESH_H 0x2C #define KXTF9_REG_TDT_THRESH_L 0x2D #define KXTF9_REG_TDT_TAP_TIMER 0x2E #define KXTF9_REG_TDT_TOTAL_TIMER 0x2F #define KXTF9_REG_TDT_LATENCY_TIMER 0x30 #define KXTF9_REG_TDT_WINDOW_TIMER 0x31 #define KXCJK1013_REG_SELF_TEST 0x3A #define KXTF9_REG_WAKE_THRESH 0x5A #define KXTF9_REG_TILT_ANGLE 0x5C #define KXTF9_REG_HYST_SET 0x5F #define KXCJK1013_REG_WAKE_THRES 0x6A /* Everything up to 0x11 is equal to KXCJK1013/KXTF9 above */ #define KX023_REG_INS1 0x12 #define KX023_REG_INS2 0x13 #define KX023_REG_INS3 0x14 #define KX023_REG_STAT 0x15 #define KX023_REG_INT_REL 0x17 #define KX023_REG_CNTL1 0x18 #define KX023_REG_CNTL2 0x19 #define KX023_REG_CNTL3 0x1A #define KX023_REG_ODCNTL 0x1B #define KX023_REG_INC1 0x1C #define KX023_REG_INC2 0x1D #define KX023_REG_INC3 0x1E #define KX023_REG_INC4 0x1F #define KX023_REG_INC5 0x20 #define KX023_REG_INC6 0x21 #define KX023_REG_TILT_TIMER 0x22 #define KX023_REG_WUFC 0x23 #define KX023_REG_TDTRC 0x24 #define KX023_REG_TDTC 0x25 #define KX023_REG_TTH 0x26 #define KX023_REG_TTL 0x27 #define KX023_REG_FTD 0x28 #define KX023_REG_STD 0x29 #define KX023_REG_TLT 0x2A #define KX023_REG_TWS 0x2B #define KX023_REG_ATH 0x30 #define KX023_REG_TILT_ANGLE_LL 0x32 #define KX023_REG_TILT_ANGLE_HL 0x33 #define KX023_REG_HYST_SET 0x34 #define KX023_REG_LP_CNTL 0x35 #define KX023_REG_BUF_CNTL1 0x3A #define KX023_REG_BUF_CNTL2 0x3B #define KX023_REG_BUF_STATUS_1 0x3C #define KX023_REG_BUF_STATUS_2 0x3D #define KX023_REG_BUF_CLEAR 0x3E #define KX023_REG_BUF_READ 0x3F #define KX023_REG_SELF_TEST 0x60 #define KXCJK1013_REG_CTRL1_BIT_PC1 BIT(7) #define KXCJK1013_REG_CTRL1_BIT_RES BIT(6) #define KXCJK1013_REG_CTRL1_BIT_DRDY BIT(5) #define KXCJK1013_REG_CTRL1_BIT_GSEL1 BIT(4) #define KXCJK1013_REG_CTRL1_BIT_GSEL0 BIT(3) #define KXCJK1013_REG_CTRL1_BIT_WUFE BIT(1) #define KXCJK1013_REG_INT_CTRL1_BIT_IEU BIT(2) /* KXTF9 */ #define KXCJK1013_REG_INT_CTRL1_BIT_IEL BIT(3) #define KXCJK1013_REG_INT_CTRL1_BIT_IEA BIT(4) #define KXCJK1013_REG_INT_CTRL1_BIT_IEN BIT(5) #define KXTF9_REG_TILT_BIT_LEFT_EDGE BIT(5) #define KXTF9_REG_TILT_BIT_RIGHT_EDGE BIT(4) #define KXTF9_REG_TILT_BIT_LOWER_EDGE BIT(3) #define KXTF9_REG_TILT_BIT_UPPER_EDGE BIT(2) #define KXTF9_REG_TILT_BIT_FACE_DOWN BIT(1) #define KXTF9_REG_TILT_BIT_FACE_UP BIT(0) #define KXCJK1013_DATA_MASK_12_BIT 0x0FFF #define KXCJK1013_MAX_STARTUP_TIME_US 100000 #define KXCJK1013_SLEEP_DELAY_MS 2000 #define KXCJK1013_REG_INT_SRC1_BIT_TPS BIT(0) /* KXTF9 */ #define KXCJK1013_REG_INT_SRC1_BIT_WUFS BIT(1) #define KXCJK1013_REG_INT_SRC1_MASK_TDTS (BIT(2) | BIT(3)) /* KXTF9 */ #define KXCJK1013_REG_INT_SRC1_TAP_NONE 0 #define KXCJK1013_REG_INT_SRC1_TAP_SINGLE BIT(2) #define KXCJK1013_REG_INT_SRC1_TAP_DOUBLE BIT(3) #define KXCJK1013_REG_INT_SRC1_BIT_DRDY BIT(4) /* KXCJK: INT_SOURCE2: motion detect, KXTF9: INT_SRC_REG1: tap detect */ #define KXCJK1013_REG_INT_SRC2_BIT_ZP BIT(0) #define KXCJK1013_REG_INT_SRC2_BIT_ZN BIT(1) #define KXCJK1013_REG_INT_SRC2_BIT_YP BIT(2) #define KXCJK1013_REG_INT_SRC2_BIT_YN BIT(3) #define KXCJK1013_REG_INT_SRC2_BIT_XP BIT(4) #define KXCJK1013_REG_INT_SRC2_BIT_XN BIT(5) /* KX023 interrupt routing to INT1. INT2 can be configured with INC6 */ #define KX023_REG_INC4_BFI1 BIT(6) #define KX023_REG_INC4_WMI1 BIT(5) #define KX023_REG_INC4_DRDY1 BIT(4) #define KX023_REG_INC4_TDTI1 BIT(2) #define KX023_REG_INC4_WUFI1 BIT(1) #define KX023_REG_INC4_TPI1 BIT(0) #define KXCJK1013_DEFAULT_WAKE_THRES 1 enum kx_chipset { KXCJK1013, KXCJ91008, KXTJ21009, KXTF9, KX0231025, KX_MAX_CHIPS /* this must be last */ }; enum kx_acpi_type { ACPI_GENERIC, ACPI_SMO8500, ACPI_KIOX010A, }; struct kx_chipset_regs { u8 int_src1; u8 int_src2; u8 int_rel; u8 ctrl1; u8 wuf_ctrl; u8 int_ctrl1; u8 data_ctrl; u8 wake_timer; u8 wake_thres; }; static const struct kx_chipset_regs kxcjk1013_regs = { .int_src1 = KXCJK1013_REG_INT_SRC1, .int_src2 = KXCJK1013_REG_INT_SRC2, .int_rel = KXCJK1013_REG_INT_REL, .ctrl1 = KXCJK1013_REG_CTRL1, .wuf_ctrl = KXCJK1013_REG_CTRL2, .int_ctrl1 = KXCJK1013_REG_INT_CTRL1, .data_ctrl = KXCJK1013_REG_DATA_CTRL, .wake_timer = KXCJK1013_REG_WAKE_TIMER, .wake_thres = KXCJK1013_REG_WAKE_THRES, }; static const struct kx_chipset_regs kxtf9_regs = { /* .int_src1 was moved to INT_SRC2 on KXTF9 */ .int_src1 = KXTF9_REG_INT_SRC2, /* .int_src2 is not available */ .int_rel = KXCJK1013_REG_INT_REL, .ctrl1 = KXCJK1013_REG_CTRL1, .wuf_ctrl = KXTF9_REG_CTRL3, .int_ctrl1 = KXCJK1013_REG_INT_CTRL1, .data_ctrl = KXCJK1013_REG_DATA_CTRL, .wake_timer = KXCJK1013_REG_WAKE_TIMER, .wake_thres = KXTF9_REG_WAKE_THRESH, }; /* The registers have totally different names but the bits are compatible */ static const struct kx_chipset_regs kx0231025_regs = { .int_src1 = KX023_REG_INS2, .int_src2 = KX023_REG_INS3, .int_rel = KX023_REG_INT_REL, .ctrl1 = KX023_REG_CNTL1, .wuf_ctrl = KX023_REG_CNTL3, .int_ctrl1 = KX023_REG_INC1, .data_ctrl = KX023_REG_ODCNTL, .wake_timer = KX023_REG_WUFC, .wake_thres = KX023_REG_ATH, }; enum kxcjk1013_axis { AXIS_X, AXIS_Y, AXIS_Z, AXIS_MAX }; struct kxcjk1013_data { struct i2c_client *client; struct iio_trigger *dready_trig; struct iio_trigger *motion_trig; struct iio_mount_matrix orientation; struct mutex mutex; /* Ensure timestamp naturally aligned */ struct { s16 chans[AXIS_MAX]; s64 timestamp __aligned(8); } scan; u8 odr_bits; u8 range; int wake_thres; int wake_dur; bool active_high_intr; bool dready_trigger_on; int ev_enable_state; bool motion_trigger_on; int64_t timestamp; enum kx_chipset chipset; enum kx_acpi_type acpi_type; const struct kx_chipset_regs *regs; }; enum kxcjk1013_mode { STANDBY, OPERATION, }; enum kxcjk1013_range { KXCJK1013_RANGE_2G, KXCJK1013_RANGE_4G, KXCJK1013_RANGE_8G, }; struct kx_odr_map { int val; int val2; int odr_bits; int wuf_bits; }; static const struct kx_odr_map samp_freq_table[] = { { 0, 781000, 0x08, 0x00 }, { 1, 563000, 0x09, 0x01 }, { 3, 125000, 0x0A, 0x02 }, { 6, 250000, 0x0B, 0x03 }, { 12, 500000, 0x00, 0x04 }, { 25, 0, 0x01, 0x05 }, { 50, 0, 0x02, 0x06 }, { 100, 0, 0x03, 0x06 }, { 200, 0, 0x04, 0x06 }, { 400, 0, 0x05, 0x06 }, { 800, 0, 0x06, 0x06 }, { 1600, 0, 0x07, 0x06 }, }; static const char *const kxcjk1013_samp_freq_avail = "0.781000 1.563000 3.125000 6.250000 12.500000 25 50 100 200 400 800 1600"; static const struct kx_odr_map kxtf9_samp_freq_table[] = { { 25, 0, 0x01, 0x00 }, { 50, 0, 0x02, 0x01 }, { 100, 0, 0x03, 0x01 }, { 200, 0, 0x04, 0x01 }, { 400, 0, 0x05, 0x01 }, { 800, 0, 0x06, 0x01 }, }; static const char *const kxtf9_samp_freq_avail = "25 50 100 200 400 800"; /* Refer to section 4 of the specification */ static __maybe_unused const struct { int odr_bits; int usec; } 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}, }, /* KXTF9 */ { {0x01, 81000}, {0x02, 41000}, {0x03, 21000}, {0x04, 11000}, {0x05, 5100}, {0x06, 2700}, }, /* KX023-1025 */ { /* First 4 are not in datasheet, taken from KXCTJ2-1009 */ {0x08, 1240000}, {0x09, 621000}, {0x0A, 309000}, {0x0B, 151000}, {0, 81000}, {0x01, 40000}, {0x02, 22000}, {0x03, 12000}, {0x04, 7000}, {0x05, 4400}, {0x06, 3000}, {0x07, 3000}, }, }; static const struct { u16 scale; u8 gsel_0; u8 gsel_1; } KXCJK1013_scale_table[] = { {9582, 0, 0}, {19163, 1, 0}, {38326, 0, 1} }; #ifdef CONFIG_ACPI enum kiox010a_fn_index { KIOX010A_SET_LAPTOP_MODE = 1, KIOX010A_SET_TABLET_MODE = 2, }; static int kiox010a_dsm(struct device *dev, int fn_index) { acpi_handle handle = ACPI_HANDLE(dev); guid_t kiox010a_dsm_guid; union acpi_object *obj; if (!handle) return -ENODEV; guid_parse("1f339696-d475-4e26-8cad-2e9f8e6d7a91", &kiox010a_dsm_guid); obj = acpi_evaluate_dsm(handle, &kiox010a_dsm_guid, 1, fn_index, NULL); if (!obj) return -EIO; ACPI_FREE(obj); return 0; } #endif static int kxcjk1013_set_mode(struct kxcjk1013_data *data, enum kxcjk1013_mode mode) { int ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_ctrl1\n"); return ret; } if (mode == STANDBY) ret &= ~KXCJK1013_REG_CTRL1_BIT_PC1; else ret |= KXCJK1013_REG_CTRL1_BIT_PC1; ret = i2c_smbus_write_byte_data(data->client, data->regs->ctrl1, ret); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_ctrl1\n"); return ret; } return 0; } static int kxcjk1013_get_mode(struct kxcjk1013_data *data, enum kxcjk1013_mode *mode) { int ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_ctrl1\n"); return ret; } if (ret & KXCJK1013_REG_CTRL1_BIT_PC1) *mode = OPERATION; else *mode = STANDBY; return 0; } static int kxcjk1013_set_range(struct kxcjk1013_data *data, int range_index) { int ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_ctrl1\n"); return ret; } ret &= ~(KXCJK1013_REG_CTRL1_BIT_GSEL0 | KXCJK1013_REG_CTRL1_BIT_GSEL1); ret |= (KXCJK1013_scale_table[range_index].gsel_0 << 3); ret |= (KXCJK1013_scale_table[range_index].gsel_1 << 4); ret = i2c_smbus_write_byte_data(data->client, data->regs->ctrl1, ret); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_ctrl1\n"); return ret; } data->range = range_index; return 0; } static int kxcjk1013_chip_init(struct kxcjk1013_data *data) { int ret; #ifdef CONFIG_ACPI if (data->acpi_type == ACPI_KIOX010A) { /* Make sure the kbd and touchpad on 2-in-1s using 2 KXCJ91008-s work */ kiox010a_dsm(&data->client->dev, KIOX010A_SET_LAPTOP_MODE); } #endif ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_WHO_AM_I); if (ret < 0) { dev_err(&data->client->dev, "Error reading who_am_i\n"); return ret; } dev_dbg(&data->client->dev, "KXCJK1013 Chip Id %x\n", ret); ret = kxcjk1013_set_mode(data, STANDBY); if (ret < 0) return ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_ctrl1\n"); return ret; } /* Set 12 bit mode */ ret |= KXCJK1013_REG_CTRL1_BIT_RES; ret = i2c_smbus_write_byte_data(data->client, data->regs->ctrl1, ret); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_ctrl\n"); return ret; } /* Setting range to 4G */ ret = kxcjk1013_set_range(data, KXCJK1013_RANGE_4G); if (ret < 0) return ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->data_ctrl); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_data_ctrl\n"); return ret; } data->odr_bits = ret; /* Set up INT polarity */ ret = i2c_smbus_read_byte_data(data->client, data->regs->int_ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_int_ctrl1\n"); return ret; } if (data->active_high_intr) ret |= KXCJK1013_REG_INT_CTRL1_BIT_IEA; else ret &= ~KXCJK1013_REG_INT_CTRL1_BIT_IEA; ret = i2c_smbus_write_byte_data(data->client, data->regs->int_ctrl1, ret); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_int_ctrl1\n"); return ret; } /* On KX023, route all used interrupts to INT1 for now */ if (data->chipset == KX0231025 && data->client->irq > 0) { ret = i2c_smbus_write_byte_data(data->client, KX023_REG_INC4, KX023_REG_INC4_DRDY1 | KX023_REG_INC4_WUFI1); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_inc4\n"); return ret; } } ret = kxcjk1013_set_mode(data, OPERATION); if (ret < 0) return ret; data->wake_thres = KXCJK1013_DEFAULT_WAKE_THRES; return 0; } #ifdef CONFIG_PM 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[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; } #endif static int kxcjk1013_set_power_state(struct kxcjk1013_data *data, bool on) { #ifdef CONFIG_PM int ret; if (on) ret = pm_runtime_resume_and_get(&data->client->dev); else { pm_runtime_mark_last_busy(&data->client->dev); ret = pm_runtime_put_autosuspend(&data->client->dev); } if (ret < 0) { dev_err(&data->client->dev, "Failed: %s for %d\n", __func__, on); return ret; } #endif return 0; } static int kxcjk1013_chip_update_thresholds(struct kxcjk1013_data *data) { int ret; ret = i2c_smbus_write_byte_data(data->client, data->regs->wake_timer, data->wake_dur); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_wake_timer\n"); return ret; } ret = i2c_smbus_write_byte_data(data->client, data->regs->wake_thres, data->wake_thres); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_wake_thres\n"); return ret; } return 0; } static int kxcjk1013_setup_any_motion_interrupt(struct kxcjk1013_data *data, bool status) { int ret; enum kxcjk1013_mode store_mode; ret = kxcjk1013_get_mode(data, &store_mode); if (ret < 0) return ret; /* This is requirement by spec to change state to STANDBY */ ret = kxcjk1013_set_mode(data, STANDBY); if (ret < 0) return ret; ret = kxcjk1013_chip_update_thresholds(data); if (ret < 0) return ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->int_ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_int_ctrl1\n"); return ret; } if (status) ret |= KXCJK1013_REG_INT_CTRL1_BIT_IEN; else ret &= ~KXCJK1013_REG_INT_CTRL1_BIT_IEN; ret = i2c_smbus_write_byte_data(data->client, data->regs->int_ctrl1, ret); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_int_ctrl1\n"); return ret; } ret = i2c_smbus_read_byte_data(data->client, data->regs->ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_ctrl1\n"); return ret; } if (status) ret |= KXCJK1013_REG_CTRL1_BIT_WUFE; else ret &= ~KXCJK1013_REG_CTRL1_BIT_WUFE; ret = i2c_smbus_write_byte_data(data->client, data->regs->ctrl1, ret); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_ctrl1\n"); return ret; } if (store_mode == OPERATION) { ret = kxcjk1013_set_mode(data, OPERATION); if (ret < 0) return ret; } return 0; } static int kxcjk1013_setup_new_data_interrupt(struct kxcjk1013_data *data, bool status) { int ret; enum kxcjk1013_mode store_mode; ret = kxcjk1013_get_mode(data, &store_mode); if (ret < 0) return ret; /* This is requirement by spec to change state to STANDBY */ ret = kxcjk1013_set_mode(data, STANDBY); if (ret < 0) return ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->int_ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_int_ctrl1\n"); return ret; } if (status) ret |= KXCJK1013_REG_INT_CTRL1_BIT_IEN; else ret &= ~KXCJK1013_REG_INT_CTRL1_BIT_IEN; ret = i2c_smbus_write_byte_data(data->client, data->regs->int_ctrl1, ret); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_int_ctrl1\n"); return ret; } ret = i2c_smbus_read_byte_data(data->client, data->regs->ctrl1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_ctrl1\n"); return ret; } if (status) ret |= KXCJK1013_REG_CTRL1_BIT_DRDY; else ret &= ~KXCJK1013_REG_CTRL1_BIT_DRDY; ret = i2c_smbus_write_byte_data(data->client, data->regs->ctrl1, ret); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_ctrl1\n"); return ret; } if (store_mode == OPERATION) { ret = kxcjk1013_set_mode(data, OPERATION); if (ret < 0) return ret; } return 0; } static const struct kx_odr_map *kxcjk1013_find_odr_value( const struct kx_odr_map *map, size_t map_size, int val, int val2) { int i; for (i = 0; i < map_size; ++i) { if (map[i].val == val && map[i].val2 == val2) return &map[i]; } return ERR_PTR(-EINVAL); } static int kxcjk1013_convert_odr_value(const struct kx_odr_map *map, size_t map_size, int odr_bits, int *val, int *val2) { int i; for (i = 0; i < map_size; ++i) { if (map[i].odr_bits == odr_bits) { *val = map[i].val; *val2 = map[i].val2; return IIO_VAL_INT_PLUS_MICRO; } } return -EINVAL; } static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2) { int ret; enum kxcjk1013_mode store_mode; const struct kx_odr_map *odr_setting; ret = kxcjk1013_get_mode(data, &store_mode); if (ret < 0) return ret; if (data->chipset == KXTF9) odr_setting = kxcjk1013_find_odr_value(kxtf9_samp_freq_table, ARRAY_SIZE(kxtf9_samp_freq_table), val, val2); else odr_setting = kxcjk1013_find_odr_value(samp_freq_table, ARRAY_SIZE(samp_freq_table), val, val2); if (IS_ERR(odr_setting)) return PTR_ERR(odr_setting); /* To change ODR, the chip must be set to STANDBY as per spec */ ret = kxcjk1013_set_mode(data, STANDBY); if (ret < 0) return ret; ret = i2c_smbus_write_byte_data(data->client, data->regs->data_ctrl, odr_setting->odr_bits); if (ret < 0) { dev_err(&data->client->dev, "Error writing data_ctrl\n"); return ret; } data->odr_bits = odr_setting->odr_bits; ret = i2c_smbus_write_byte_data(data->client, data->regs->wuf_ctrl, odr_setting->wuf_bits); if (ret < 0) { dev_err(&data->client->dev, "Error writing reg_ctrl2\n"); return ret; } if (store_mode == OPERATION) { ret = kxcjk1013_set_mode(data, OPERATION); if (ret < 0) return ret; } return 0; } static int kxcjk1013_get_odr(struct kxcjk1013_data *data, int *val, int *val2) { if (data->chipset == KXTF9) return kxcjk1013_convert_odr_value(kxtf9_samp_freq_table, ARRAY_SIZE(kxtf9_samp_freq_table), data->odr_bits, val, val2); else return kxcjk1013_convert_odr_value(samp_freq_table, ARRAY_SIZE(samp_freq_table), data->odr_bits, val, val2); } static int kxcjk1013_get_acc_reg(struct kxcjk1013_data *data, int axis) { u8 reg = KXCJK1013_REG_XOUT_L + axis * 2; int ret; ret = i2c_smbus_read_word_data(data->client, reg); if (ret < 0) { dev_err(&data->client->dev, "failed to read accel_%c registers\n", 'x' + axis); return ret; } return ret; } static int kxcjk1013_set_scale(struct kxcjk1013_data *data, int val) { int ret, i; enum kxcjk1013_mode store_mode; for (i = 0; i < ARRAY_SIZE(KXCJK1013_scale_table); ++i) { if (KXCJK1013_scale_table[i].scale == val) { ret = kxcjk1013_get_mode(data, &store_mode); if (ret < 0) return ret; ret = kxcjk1013_set_mode(data, STANDBY); if (ret < 0) return ret; ret = kxcjk1013_set_range(data, i); if (ret < 0) return ret; if (store_mode == OPERATION) { ret = kxcjk1013_set_mode(data, OPERATION); if (ret) return ret; } return 0; } } return -EINVAL; } static int kxcjk1013_read_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; switch (mask) { case IIO_CHAN_INFO_RAW: mutex_lock(&data->mutex); if (iio_buffer_enabled(indio_dev)) ret = -EBUSY; else { ret = kxcjk1013_set_power_state(data, true); if (ret < 0) { mutex_unlock(&data->mutex); return ret; } ret = kxcjk1013_get_acc_reg(data, chan->scan_index); if (ret < 0) { kxcjk1013_set_power_state(data, false); mutex_unlock(&data->mutex); return ret; } *val = sign_extend32(ret >> chan->scan_type.shift, chan->scan_type.realbits - 1); ret = kxcjk1013_set_power_state(data, false); } mutex_unlock(&data->mutex); if (ret < 0) return ret; return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: *val = 0; *val2 = KXCJK1013_scale_table[data->range].scale; return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_SAMP_FREQ: mutex_lock(&data->mutex); ret = kxcjk1013_get_odr(data, val, val2); mutex_unlock(&data->mutex); return ret; default: return -EINVAL; } } static int kxcjk1013_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long mask) { struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; switch (mask) { case IIO_CHAN_INFO_SAMP_FREQ: mutex_lock(&data->mutex); ret = kxcjk1013_set_odr(data, val, val2); mutex_unlock(&data->mutex); break; case IIO_CHAN_INFO_SCALE: if (val) return -EINVAL; mutex_lock(&data->mutex); ret = kxcjk1013_set_scale(data, val2); mutex_unlock(&data->mutex); break; default: ret = -EINVAL; } return ret; } static int kxcjk1013_read_event(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, enum iio_event_info info, int *val, int *val2) { struct kxcjk1013_data *data = iio_priv(indio_dev); *val2 = 0; switch (info) { case IIO_EV_INFO_VALUE: *val = data->wake_thres; break; case IIO_EV_INFO_PERIOD: *val = data->wake_dur; break; default: return -EINVAL; } return IIO_VAL_INT; } static int kxcjk1013_write_event(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, enum iio_event_info info, int val, int val2) { struct kxcjk1013_data *data = iio_priv(indio_dev); if (data->ev_enable_state) return -EBUSY; switch (info) { case IIO_EV_INFO_VALUE: data->wake_thres = val; break; case IIO_EV_INFO_PERIOD: data->wake_dur = val; break; default: return -EINVAL; } return 0; } static int kxcjk1013_read_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir) { struct kxcjk1013_data *data = iio_priv(indio_dev); return data->ev_enable_state; } static int kxcjk1013_write_event_config(struct iio_dev *indio_dev, const struct iio_chan_spec *chan, enum iio_event_type type, enum iio_event_direction dir, int state) { struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; if (state && data->ev_enable_state) return 0; mutex_lock(&data->mutex); if (!state && data->motion_trigger_on) { data->ev_enable_state = 0; mutex_unlock(&data->mutex); return 0; } /* * We will expect the enable and disable to do operation in * reverse order. This will happen here anyway as our * resume operation uses sync mode runtime pm calls, the * suspend operation will be delayed by autosuspend delay * So the disable operation will still happen in reverse of * enable operation. When runtime pm is disabled the mode * is always on so sequence doesn't matter */ ret = kxcjk1013_set_power_state(data, state); if (ret < 0) { mutex_unlock(&data->mutex); return ret; } ret = kxcjk1013_setup_any_motion_interrupt(data, state); if (ret < 0) { kxcjk1013_set_power_state(data, false); data->ev_enable_state = 0; mutex_unlock(&data->mutex); return ret; } data->ev_enable_state = state; mutex_unlock(&data->mutex); return 0; } static int kxcjk1013_buffer_preenable(struct iio_dev *indio_dev) { struct kxcjk1013_data *data = iio_priv(indio_dev); return kxcjk1013_set_power_state(data, true); } static int kxcjk1013_buffer_postdisable(struct iio_dev *indio_dev) { struct kxcjk1013_data *data = iio_priv(indio_dev); return kxcjk1013_set_power_state(data, false); } static ssize_t kxcjk1013_get_samp_freq_avail(struct device *dev, struct device_attribute *attr, char *buf) { struct iio_dev *indio_dev = dev_to_iio_dev(dev); struct kxcjk1013_data *data = iio_priv(indio_dev); const char *str; if (data->chipset == KXTF9) str = kxtf9_samp_freq_avail; else str = kxcjk1013_samp_freq_avail; return sprintf(buf, "%s\n", str); } static IIO_DEVICE_ATTR(in_accel_sampling_frequency_available, S_IRUGO, kxcjk1013_get_samp_freq_avail, NULL, 0); static IIO_CONST_ATTR(in_accel_scale_available, "0.009582 0.019163 0.038326"); static struct attribute *kxcjk1013_attributes[] = { &iio_dev_attr_in_accel_sampling_frequency_available.dev_attr.attr, &iio_const_attr_in_accel_scale_available.dev_attr.attr, NULL, }; static const struct attribute_group kxcjk1013_attrs_group = { .attrs = kxcjk1013_attributes, }; static const struct iio_event_spec kxcjk1013_event = { .type = IIO_EV_TYPE_THRESH, .dir = IIO_EV_DIR_EITHER, .mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE) | BIT(IIO_EV_INFO_PERIOD) }; static const struct iio_mount_matrix * kxcjk1013_get_mount_matrix(const struct iio_dev *indio_dev, const struct iio_chan_spec *chan) { struct kxcjk1013_data *data = iio_priv(indio_dev); return &data->orientation; } static const struct iio_chan_spec_ext_info kxcjk1013_ext_info[] = { IIO_MOUNT_MATRIX(IIO_SHARED_BY_TYPE, kxcjk1013_get_mount_matrix), { } }; #define KXCJK1013_CHANNEL(_axis) { \ .type = IIO_ACCEL, \ .modified = 1, \ .channel2 = IIO_MOD_##_axis, \ .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) | \ BIT(IIO_CHAN_INFO_SAMP_FREQ), \ .scan_index = AXIS_##_axis, \ .scan_type = { \ .sign = 's', \ .realbits = 12, \ .storagebits = 16, \ .shift = 4, \ .endianness = IIO_LE, \ }, \ .event_spec = &kxcjk1013_event, \ .ext_info = kxcjk1013_ext_info, \ .num_event_specs = 1 \ } static const struct iio_chan_spec kxcjk1013_channels[] = { KXCJK1013_CHANNEL(X), KXCJK1013_CHANNEL(Y), KXCJK1013_CHANNEL(Z), IIO_CHAN_SOFT_TIMESTAMP(3), }; static const struct iio_buffer_setup_ops kxcjk1013_buffer_setup_ops = { .preenable = kxcjk1013_buffer_preenable, .postdisable = kxcjk1013_buffer_postdisable, }; static const struct iio_info kxcjk1013_info = { .attrs = &kxcjk1013_attrs_group, .read_raw = kxcjk1013_read_raw, .write_raw = kxcjk1013_write_raw, .read_event_value = kxcjk1013_read_event, .write_event_value = kxcjk1013_write_event, .write_event_config = kxcjk1013_write_event_config, .read_event_config = kxcjk1013_read_event_config, }; static const unsigned long kxcjk1013_scan_masks[] = {0x7, 0}; static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; struct iio_dev *indio_dev = pf->indio_dev; struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; mutex_lock(&data->mutex); ret = i2c_smbus_read_i2c_block_data_or_emulated(data->client, KXCJK1013_REG_XOUT_L, AXIS_MAX * 2, (u8 *)data->scan.chans); mutex_unlock(&data->mutex); if (ret < 0) goto err; iio_push_to_buffers_with_timestamp(indio_dev, &data->scan, data->timestamp); err: iio_trigger_notify_done(indio_dev->trig); return IRQ_HANDLED; } static void kxcjk1013_trig_reen(struct iio_trigger *trig) { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->int_rel); if (ret < 0) dev_err(&data->client->dev, "Error reading reg_int_rel\n"); } static int kxcjk1013_data_rdy_trigger_set_state(struct iio_trigger *trig, bool state) { struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; mutex_lock(&data->mutex); if (!state && data->ev_enable_state && data->motion_trigger_on) { data->motion_trigger_on = false; mutex_unlock(&data->mutex); return 0; } ret = kxcjk1013_set_power_state(data, state); if (ret < 0) { mutex_unlock(&data->mutex); return ret; } if (data->motion_trig == trig) ret = kxcjk1013_setup_any_motion_interrupt(data, state); else ret = kxcjk1013_setup_new_data_interrupt(data, state); if (ret < 0) { kxcjk1013_set_power_state(data, false); mutex_unlock(&data->mutex); return ret; } if (data->motion_trig == trig) data->motion_trigger_on = state; else data->dready_trigger_on = state; mutex_unlock(&data->mutex); return 0; } static const struct iio_trigger_ops kxcjk1013_trigger_ops = { .set_trigger_state = kxcjk1013_data_rdy_trigger_set_state, .reenable = kxcjk1013_trig_reen, }; static void kxcjk1013_report_motion_event(struct iio_dev *indio_dev) { struct kxcjk1013_data *data = iio_priv(indio_dev); int ret = i2c_smbus_read_byte_data(data->client, data->regs->int_src2); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_int_src2\n"); return; } if (ret & KXCJK1013_REG_INT_SRC2_BIT_XN) iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_X, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), data->timestamp); if (ret & KXCJK1013_REG_INT_SRC2_BIT_XP) iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_X, IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), data->timestamp); if (ret & KXCJK1013_REG_INT_SRC2_BIT_YN) iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Y, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), data->timestamp); if (ret & KXCJK1013_REG_INT_SRC2_BIT_YP) iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Y, IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), data->timestamp); if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZN) iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Z, IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING), data->timestamp); if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZP) iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_Z, IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), data->timestamp); } static irqreturn_t kxcjk1013_event_handler(int irq, void *private) { struct iio_dev *indio_dev = private; struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; ret = i2c_smbus_read_byte_data(data->client, data->regs->int_src1); if (ret < 0) { dev_err(&data->client->dev, "Error reading reg_int_src1\n"); goto ack_intr; } if (ret & KXCJK1013_REG_INT_SRC1_BIT_WUFS) { if (data->chipset == KXTF9) iio_push_event(indio_dev, IIO_MOD_EVENT_CODE(IIO_ACCEL, 0, IIO_MOD_X_AND_Y_AND_Z, IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING), data->timestamp); else kxcjk1013_report_motion_event(indio_dev); } ack_intr: if (data->dready_trigger_on) return IRQ_HANDLED; ret = i2c_smbus_read_byte_data(data->client, data->regs->int_rel); if (ret < 0) dev_err(&data->client->dev, "Error reading reg_int_rel\n"); return IRQ_HANDLED; } static irqreturn_t kxcjk1013_data_rdy_trig_poll(int irq, void *private) { struct iio_dev *indio_dev = private; struct kxcjk1013_data *data = iio_priv(indio_dev); data->timestamp = iio_get_time_ns(indio_dev); if (data->dready_trigger_on) iio_trigger_poll(data->dready_trig); else if (data->motion_trigger_on) iio_trigger_poll(data->motion_trig); if (data->ev_enable_state) return IRQ_WAKE_THREAD; else return IRQ_HANDLED; } static const char *kxcjk1013_match_acpi_device(struct device *dev, enum kx_chipset *chipset, enum kx_acpi_type *acpi_type, const char **label) { const struct acpi_device_id *id; id = acpi_match_device(dev->driver->acpi_match_table, dev); if (!id) return NULL; if (strcmp(id->id, "SMO8500") == 0) { *acpi_type = ACPI_SMO8500; } else if (strcmp(id->id, "KIOX010A") == 0) { *acpi_type = ACPI_KIOX010A; *label = "accel-display"; } else if (strcmp(id->id, "KIOX020A") == 0) { *label = "accel-base"; } *chipset = (enum kx_chipset)id->driver_data; return dev_name(dev); } static int kxcjk1013_probe(struct i2c_client *client) { const struct i2c_device_id *id = i2c_client_get_device_id(client); static const char * const regulator_names[] = { "vdd", "vddio" }; 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)); if (!indio_dev) return -ENOMEM; data = iio_priv(indio_dev); i2c_set_clientdata(client, indio_dev); data->client = client; pdata = dev_get_platdata(&client->dev); if (pdata) { data->active_high_intr = pdata->active_high_intr; data->orientation = pdata->orientation; } else { data->active_high_intr = true; /* default polarity */ ret = iio_read_mount_matrix(&client->dev, &data->orientation); if (ret) return ret; } ret = devm_regulator_bulk_get_enable(&client->dev, ARRAY_SIZE(regulator_names), regulator_names); if (ret) return dev_err_probe(&client->dev, ret, "Failed to get regulators\n"); /* * A typical delay of 10ms is required for powering up * according to the data sheets of supported chips. * Hence double that to play safe. */ msleep(20); 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, &data->acpi_type, &indio_dev->label); } else return -ENODEV; switch (data->chipset) { case KXCJK1013: case KXCJ91008: case KXTJ21009: data->regs = &kxcjk1013_regs; break; case KXTF9: data->regs = &kxtf9_regs; break; case KX0231025: data->regs = &kx0231025_regs; break; default: return -EINVAL; } ret = kxcjk1013_chip_init(data); if (ret < 0) return ret; mutex_init(&data->mutex); indio_dev->channels = kxcjk1013_channels; indio_dev->num_channels = ARRAY_SIZE(kxcjk1013_channels); indio_dev->available_scan_masks = kxcjk1013_scan_masks; indio_dev->name = name; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->info = &kxcjk1013_info; if (client->irq > 0 && data->acpi_type != ACPI_SMO8500) { ret = devm_request_threaded_irq(&client->dev, client->irq, kxcjk1013_data_rdy_trig_poll, kxcjk1013_event_handler, IRQF_TRIGGER_RISING, KXCJK1013_IRQ_NAME, indio_dev); if (ret) goto err_poweroff; data->dready_trig = devm_iio_trigger_alloc(&client->dev, "%s-dev%d", indio_dev->name, iio_device_id(indio_dev)); if (!data->dready_trig) { ret = -ENOMEM; goto err_poweroff; } data->motion_trig = devm_iio_trigger_alloc(&client->dev, "%s-any-motion-dev%d", indio_dev->name, iio_device_id(indio_dev)); if (!data->motion_trig) { ret = -ENOMEM; goto err_poweroff; } data->dready_trig->ops = &kxcjk1013_trigger_ops; iio_trigger_set_drvdata(data->dready_trig, indio_dev); ret = iio_trigger_register(data->dready_trig); if (ret) goto err_poweroff; indio_dev->trig = iio_trigger_get(data->dready_trig); data->motion_trig->ops = &kxcjk1013_trigger_ops; iio_trigger_set_drvdata(data->motion_trig, indio_dev); ret = iio_trigger_register(data->motion_trig); if (ret) { data->motion_trig = NULL; goto err_trigger_unregister; } } ret = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time, kxcjk1013_trigger_handler, &kxcjk1013_buffer_setup_ops); if (ret < 0) { dev_err(&client->dev, "iio triggered buffer setup failed\n"); goto err_trigger_unregister; } ret = pm_runtime_set_active(&client->dev); if (ret) goto err_buffer_cleanup; pm_runtime_enable(&client->dev); pm_runtime_set_autosuspend_delay(&client->dev, KXCJK1013_SLEEP_DELAY_MS); pm_runtime_use_autosuspend(&client->dev); ret = iio_device_register(indio_dev); if (ret < 0) { dev_err(&client->dev, "unable to register iio device\n"); goto err_pm_cleanup; } return 0; err_pm_cleanup: pm_runtime_dont_use_autosuspend(&client->dev); pm_runtime_disable(&client->dev); err_buffer_cleanup: iio_triggered_buffer_cleanup(indio_dev); err_trigger_unregister: if (data->dready_trig) iio_trigger_unregister(data->dready_trig); if (data->motion_trig) iio_trigger_unregister(data->motion_trig); err_poweroff: kxcjk1013_set_mode(data, STANDBY); return ret; } static void kxcjk1013_remove(struct i2c_client *client) { struct iio_dev *indio_dev = i2c_get_clientdata(client); struct kxcjk1013_data *data = iio_priv(indio_dev); iio_device_unregister(indio_dev); pm_runtime_disable(&client->dev); pm_runtime_set_suspended(&client->dev); iio_triggered_buffer_cleanup(indio_dev); if (data->dready_trig) { iio_trigger_unregister(data->dready_trig); iio_trigger_unregister(data->motion_trig); } mutex_lock(&data->mutex); kxcjk1013_set_mode(data, STANDBY); mutex_unlock(&data->mutex); } #ifdef CONFIG_PM_SLEEP static int kxcjk1013_suspend(struct device *dev) { struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; mutex_lock(&data->mutex); ret = kxcjk1013_set_mode(data, STANDBY); mutex_unlock(&data->mutex); return ret; } static int kxcjk1013_resume(struct device *dev) { struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); struct kxcjk1013_data *data = iio_priv(indio_dev); int ret = 0; mutex_lock(&data->mutex); ret = kxcjk1013_set_mode(data, OPERATION); if (ret == 0) ret = kxcjk1013_set_range(data, data->range); mutex_unlock(&data->mutex); return ret; } #endif #ifdef CONFIG_PM static int kxcjk1013_runtime_suspend(struct device *dev) { struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; ret = kxcjk1013_set_mode(data, STANDBY); if (ret < 0) { dev_err(&data->client->dev, "powering off device failed\n"); return -EAGAIN; } return 0; } static int kxcjk1013_runtime_resume(struct device *dev) { struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); struct kxcjk1013_data *data = iio_priv(indio_dev); int ret; int sleep_val; ret = kxcjk1013_set_mode(data, OPERATION); if (ret < 0) return ret; sleep_val = kxcjk1013_get_startup_times(data); if (sleep_val < 20000) usleep_range(sleep_val, 20000); else msleep_interruptible(sleep_val/1000); return 0; } #endif static const struct dev_pm_ops kxcjk1013_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(kxcjk1013_suspend, kxcjk1013_resume) SET_RUNTIME_PM_OPS(kxcjk1013_runtime_suspend, kxcjk1013_runtime_resume, NULL) }; static const struct acpi_device_id kx_acpi_match[] = { {"KXCJ1013", KXCJK1013}, {"KXCJ1008", KXCJ91008}, {"KXCJ9000", KXCJ91008}, {"KIOX0008", KXCJ91008}, {"KIOX0009", KXTJ21009}, {"KIOX000A", KXCJ91008}, {"KIOX010A", KXCJ91008}, /* KXCJ91008 in the display of a yoga 2-in-1 */ {"KIOX020A", KXCJ91008}, /* KXCJ91008 in the base of a yoga 2-in-1 */ {"KXTJ1009", KXTJ21009}, {"KXJ2109", KXTJ21009}, {"SMO8500", KXCJ91008}, { }, }; MODULE_DEVICE_TABLE(acpi, kx_acpi_match); static const struct i2c_device_id kxcjk1013_id[] = { {"kxcjk1013", KXCJK1013}, {"kxcj91008", KXCJ91008}, {"kxtj21009", KXTJ21009}, {"kxtf9", KXTF9}, {"kx023-1025", KX0231025}, {"SMO8500", KXCJ91008}, {} }; MODULE_DEVICE_TABLE(i2c, kxcjk1013_id); static const struct of_device_id kxcjk1013_of_match[] = { { .compatible = "kionix,kxcjk1013", }, { .compatible = "kionix,kxcj91008", }, { .compatible = "kionix,kxtj21009", }, { .compatible = "kionix,kxtf9", }, { .compatible = "kionix,kx023-1025", }, { } }; MODULE_DEVICE_TABLE(of, kxcjk1013_of_match); static struct i2c_driver kxcjk1013_driver = { .driver = { .name = KXCJK1013_DRV_NAME, .acpi_match_table = ACPI_PTR(kx_acpi_match), .of_match_table = kxcjk1013_of_match, .pm = &kxcjk1013_pm_ops, }, .probe = kxcjk1013_probe, .remove = kxcjk1013_remove, .id_table = kxcjk1013_id, }; module_i2c_driver(kxcjk1013_driver); MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>"); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("KXCJK1013 accelerometer driver");
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