diff options
Diffstat (limited to 'drivers/input/keyboard/cap11xx.c')
| -rw-r--r-- | drivers/input/keyboard/cap11xx.c | 678 |
1 files changed, 678 insertions, 0 deletions
diff --git a/drivers/input/keyboard/cap11xx.c b/drivers/input/keyboard/cap11xx.c new file mode 100644 index 000000000000..0c17cbaa3d27 --- /dev/null +++ b/drivers/input/keyboard/cap11xx.c @@ -0,0 +1,678 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Input driver for Microchip CAP11xx based capacitive touch sensors + * + * (c) 2014 Daniel Mack <linux@zonque.org> + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/interrupt.h> +#include <linux/input.h> +#include <linux/leds.h> +#include <linux/of.h> +#include <linux/regmap.h> +#include <linux/i2c.h> +#include <linux/gpio/consumer.h> +#include <linux/bitfield.h> + +#define CAP11XX_REG_MAIN_CONTROL 0x00 +#define CAP11XX_REG_MAIN_CONTROL_GAIN_SHIFT (6) +#define CAP11XX_REG_MAIN_CONTROL_GAIN_MASK (0xc0) +#define CAP11XX_REG_MAIN_CONTROL_DLSEEP BIT(4) +#define CAP11XX_REG_GENERAL_STATUS 0x02 +#define CAP11XX_REG_SENSOR_INPUT 0x03 +#define CAP11XX_REG_NOISE_FLAG_STATUS 0x0a +#define CAP11XX_REG_SENOR_DELTA(X) (0x10 + (X)) +#define CAP11XX_REG_SENSITIVITY_CONTROL 0x1f +#define CAP11XX_REG_SENSITIVITY_CONTROL_DELTA_SENSE_MASK 0x70 +#define CAP11XX_REG_CONFIG 0x20 +#define CAP11XX_REG_SENSOR_ENABLE 0x21 +#define CAP11XX_REG_SENSOR_CONFIG 0x22 +#define CAP11XX_REG_SENSOR_CONFIG2 0x23 +#define CAP11XX_REG_SAMPLING_CONFIG 0x24 +#define CAP11XX_REG_CALIBRATION 0x26 +#define CAP11XX_REG_INT_ENABLE 0x27 +#define CAP11XX_REG_REPEAT_RATE 0x28 +#define CAP11XX_REG_SIGNAL_GUARD_ENABLE 0x29 +#define CAP11XX_REG_MT_CONFIG 0x2a +#define CAP11XX_REG_MT_PATTERN_CONFIG 0x2b +#define CAP11XX_REG_MT_PATTERN 0x2d +#define CAP11XX_REG_RECALIB_CONFIG 0x2f +#define CAP11XX_REG_SENSOR_THRESH(X) (0x30 + (X)) +#define CAP11XX_REG_SENSOR_NOISE_THRESH 0x38 +#define CAP11XX_REG_STANDBY_CHANNEL 0x40 +#define CAP11XX_REG_STANDBY_CONFIG 0x41 +#define CAP11XX_REG_STANDBY_SENSITIVITY 0x42 +#define CAP11XX_REG_STANDBY_THRESH 0x43 +#define CAP11XX_REG_CONFIG2 0x44 +#define CAP11XX_REG_CONFIG2_ALT_POL BIT(6) +#define CAP11XX_REG_SENSOR_BASE_CNT(X) (0x50 + (X)) +#define CAP11XX_REG_LED_POLARITY 0x73 +#define CAP11XX_REG_LED_OUTPUT_CONTROL 0x74 +#define CAP11XX_REG_CALIB_SENSITIVITY_CONFIG 0x80 +#define CAP11XX_REG_CALIB_SENSITIVITY_CONFIG2 0x81 + +#define CAP11XX_REG_LED_DUTY_CYCLE_1 0x90 +#define CAP11XX_REG_LED_DUTY_CYCLE_2 0x91 +#define CAP11XX_REG_LED_DUTY_CYCLE_3 0x92 +#define CAP11XX_REG_LED_DUTY_CYCLE_4 0x93 + +#define CAP11XX_REG_LED_DUTY_MIN_MASK (0x0f) +#define CAP11XX_REG_LED_DUTY_MIN_MASK_SHIFT (0) +#define CAP11XX_REG_LED_DUTY_MAX_MASK (0xf0) +#define CAP11XX_REG_LED_DUTY_MAX_MASK_SHIFT (4) +#define CAP11XX_REG_LED_DUTY_MAX_VALUE (15) + +#define CAP11XX_REG_SENSOR_CALIB (0xb1 + (X)) +#define CAP11XX_REG_SENSOR_CALIB_LSB1 0xb9 +#define CAP11XX_REG_SENSOR_CALIB_LSB2 0xba +#define CAP11XX_REG_PRODUCT_ID 0xfd +#define CAP11XX_REG_MANUFACTURER_ID 0xfe +#define CAP11XX_REG_REVISION 0xff + +#define CAP11XX_MANUFACTURER_ID 0x5d + +#ifdef CONFIG_LEDS_CLASS +struct cap11xx_led { + struct cap11xx_priv *priv; + struct led_classdev cdev; + u32 reg; +}; +#endif + +struct cap11xx_priv { + struct regmap *regmap; + struct device *dev; + struct input_dev *idev; + const struct cap11xx_hw_model *model; + + struct cap11xx_led *leds; + int num_leds; + + /* config */ + u8 analog_gain; + u8 sensitivity_delta_sense; + u8 signal_guard_inputs_mask; + u32 thresholds[8]; + u32 calib_sensitivities[8]; + u32 keycodes[]; +}; + +struct cap11xx_hw_model { + u8 product_id; + unsigned int num_channels; + unsigned int num_leds; + bool has_gain; + bool has_irq_config; + bool has_sensitivity_control; + bool has_signal_guard; +}; + +static const struct reg_default cap11xx_reg_defaults[] = { + { CAP11XX_REG_MAIN_CONTROL, 0x00 }, + { CAP11XX_REG_GENERAL_STATUS, 0x00 }, + { CAP11XX_REG_SENSOR_INPUT, 0x00 }, + { CAP11XX_REG_NOISE_FLAG_STATUS, 0x00 }, + { CAP11XX_REG_SENSITIVITY_CONTROL, 0x2f }, + { CAP11XX_REG_CONFIG, 0x20 }, + { CAP11XX_REG_SENSOR_ENABLE, 0x3f }, + { CAP11XX_REG_SENSOR_CONFIG, 0xa4 }, + { CAP11XX_REG_SENSOR_CONFIG2, 0x07 }, + { CAP11XX_REG_SAMPLING_CONFIG, 0x39 }, + { CAP11XX_REG_CALIBRATION, 0x00 }, + { CAP11XX_REG_INT_ENABLE, 0x3f }, + { CAP11XX_REG_REPEAT_RATE, 0x3f }, + { CAP11XX_REG_MT_CONFIG, 0x80 }, + { CAP11XX_REG_MT_PATTERN_CONFIG, 0x00 }, + { CAP11XX_REG_MT_PATTERN, 0x3f }, + { CAP11XX_REG_RECALIB_CONFIG, 0x8a }, + { CAP11XX_REG_SENSOR_THRESH(0), 0x40 }, + { CAP11XX_REG_SENSOR_THRESH(1), 0x40 }, + { CAP11XX_REG_SENSOR_THRESH(2), 0x40 }, + { CAP11XX_REG_SENSOR_THRESH(3), 0x40 }, + { CAP11XX_REG_SENSOR_THRESH(4), 0x40 }, + { CAP11XX_REG_SENSOR_THRESH(5), 0x40 }, + { CAP11XX_REG_SENSOR_NOISE_THRESH, 0x01 }, + { CAP11XX_REG_STANDBY_CHANNEL, 0x00 }, + { CAP11XX_REG_STANDBY_CONFIG, 0x39 }, + { CAP11XX_REG_STANDBY_SENSITIVITY, 0x02 }, + { CAP11XX_REG_STANDBY_THRESH, 0x40 }, + { CAP11XX_REG_CONFIG2, 0x40 }, + { CAP11XX_REG_LED_POLARITY, 0x00 }, + { CAP11XX_REG_SENSOR_CALIB_LSB1, 0x00 }, + { CAP11XX_REG_SENSOR_CALIB_LSB2, 0x00 }, +}; + +static bool cap11xx_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case CAP11XX_REG_MAIN_CONTROL: + case CAP11XX_REG_SENSOR_INPUT: + case CAP11XX_REG_SENOR_DELTA(0): + case CAP11XX_REG_SENOR_DELTA(1): + case CAP11XX_REG_SENOR_DELTA(2): + case CAP11XX_REG_SENOR_DELTA(3): + case CAP11XX_REG_SENOR_DELTA(4): + case CAP11XX_REG_SENOR_DELTA(5): + return true; + } + + return false; +} + +static const struct regmap_config cap11xx_regmap_config = { + .reg_bits = 8, + .val_bits = 8, + + .max_register = CAP11XX_REG_REVISION, + .reg_defaults = cap11xx_reg_defaults, + + .num_reg_defaults = ARRAY_SIZE(cap11xx_reg_defaults), + .cache_type = REGCACHE_MAPLE, + .volatile_reg = cap11xx_volatile_reg, +}; + +static int cap11xx_write_calib_sens_config_1(struct cap11xx_priv *priv) +{ + return regmap_write(priv->regmap, + CAP11XX_REG_CALIB_SENSITIVITY_CONFIG, + (priv->calib_sensitivities[3] << 6) | + (priv->calib_sensitivities[2] << 4) | + (priv->calib_sensitivities[1] << 2) | + priv->calib_sensitivities[0]); +} + +static int cap11xx_write_calib_sens_config_2(struct cap11xx_priv *priv) +{ + return regmap_write(priv->regmap, + CAP11XX_REG_CALIB_SENSITIVITY_CONFIG2, + (priv->calib_sensitivities[7] << 6) | + (priv->calib_sensitivities[6] << 4) | + (priv->calib_sensitivities[5] << 2) | + priv->calib_sensitivities[4]); +} + +static int cap11xx_init_keys(struct cap11xx_priv *priv) +{ + struct device_node *node = priv->dev->of_node; + struct device *dev = priv->dev; + int i, error; + u32 u32_val; + + if (!node) { + dev_err(dev, "Corresponding DT entry is not available\n"); + return -ENODEV; + } + + if (!of_property_read_u32(node, "microchip,sensor-gain", &u32_val)) { + if (!priv->model->has_gain) { + dev_warn(dev, + "This model doesn't support 'sensor-gain'\n"); + } else if (is_power_of_2(u32_val) && u32_val <= 8) { + priv->analog_gain = (u8)ilog2(u32_val); + + error = regmap_update_bits(priv->regmap, + CAP11XX_REG_MAIN_CONTROL, + CAP11XX_REG_MAIN_CONTROL_GAIN_MASK, + priv->analog_gain << CAP11XX_REG_MAIN_CONTROL_GAIN_SHIFT); + if (error) + return error; + } else { + dev_err(dev, "Invalid sensor-gain value %u\n", u32_val); + return -EINVAL; + } + } + + if (of_property_read_bool(node, "microchip,irq-active-high")) { + if (priv->model->has_irq_config) { + error = regmap_update_bits(priv->regmap, + CAP11XX_REG_CONFIG2, + CAP11XX_REG_CONFIG2_ALT_POL, + 0); + if (error) + return error; + } else { + dev_warn(dev, + "This model doesn't support 'irq-active-high'\n"); + } + } + + if (!of_property_read_u32(node, "microchip,sensitivity-delta-sense", &u32_val)) { + if (!is_power_of_2(u32_val) || u32_val > 128) { + dev_err(dev, "Invalid sensitivity-delta-sense value %u\n", u32_val); + return -EINVAL; + } + + priv->sensitivity_delta_sense = (u8)ilog2(u32_val); + u32_val = ~(FIELD_PREP(CAP11XX_REG_SENSITIVITY_CONTROL_DELTA_SENSE_MASK, + priv->sensitivity_delta_sense)); + + error = regmap_update_bits(priv->regmap, + CAP11XX_REG_SENSITIVITY_CONTROL, + CAP11XX_REG_SENSITIVITY_CONTROL_DELTA_SENSE_MASK, + u32_val); + if (error) + return error; + } + + if (!of_property_read_u32_array(node, "microchip,input-threshold", + priv->thresholds, priv->model->num_channels)) { + for (i = 0; i < priv->model->num_channels; i++) { + if (priv->thresholds[i] > 127) { + dev_err(dev, "Invalid input-threshold value %u\n", + priv->thresholds[i]); + return -EINVAL; + } + + error = regmap_write(priv->regmap, + CAP11XX_REG_SENSOR_THRESH(i), + priv->thresholds[i]); + if (error) + return error; + } + } + + if (!of_property_read_u32_array(node, "microchip,calib-sensitivity", + priv->calib_sensitivities, + priv->model->num_channels)) { + if (priv->model->has_sensitivity_control) { + for (i = 0; i < priv->model->num_channels; i++) { + if (!is_power_of_2(priv->calib_sensitivities[i]) || + priv->calib_sensitivities[i] > 4) { + dev_err(dev, "Invalid calib-sensitivity value %u\n", + priv->calib_sensitivities[i]); + return -EINVAL; + } + priv->calib_sensitivities[i] = ilog2(priv->calib_sensitivities[i]); + } + + error = cap11xx_write_calib_sens_config_1(priv); + if (error) + return error; + + if (priv->model->num_channels > 4) { + error = cap11xx_write_calib_sens_config_2(priv); + if (error) + return error; + } + } else { + dev_warn(dev, + "This model doesn't support 'calib-sensitivity'\n"); + } + } + + for (i = 0; i < priv->model->num_channels; i++) { + if (!of_property_read_u32_index(node, "microchip,signal-guard", + i, &u32_val)) { + if (u32_val > 1) + return -EINVAL; + if (u32_val) + priv->signal_guard_inputs_mask |= 0x01 << i; + } + } + + if (priv->signal_guard_inputs_mask) { + if (priv->model->has_signal_guard) { + error = regmap_write(priv->regmap, + CAP11XX_REG_SIGNAL_GUARD_ENABLE, + priv->signal_guard_inputs_mask); + if (error) + return error; + } else { + dev_warn(dev, + "This model doesn't support 'signal-guard'\n"); + } + } + + /* Provide some useful defaults */ + for (i = 0; i < priv->model->num_channels; i++) + priv->keycodes[i] = KEY_A + i; + + of_property_read_u32_array(node, "linux,keycodes", + priv->keycodes, priv->model->num_channels); + + /* Disable autorepeat. The Linux input system has its own handling. */ + error = regmap_write(priv->regmap, CAP11XX_REG_REPEAT_RATE, 0); + if (error) + return error; + + return 0; +} + +static irqreturn_t cap11xx_thread_func(int irq_num, void *data) +{ + struct cap11xx_priv *priv = data; + unsigned int status; + int ret, i; + + /* + * Deassert interrupt. This needs to be done before reading the status + * registers, which will not carry valid values otherwise. + */ + ret = regmap_update_bits(priv->regmap, CAP11XX_REG_MAIN_CONTROL, 1, 0); + if (ret < 0) + goto out; + + ret = regmap_read(priv->regmap, CAP11XX_REG_SENSOR_INPUT, &status); + if (ret < 0) + goto out; + + for (i = 0; i < priv->idev->keycodemax; i++) + input_report_key(priv->idev, priv->keycodes[i], + status & (1 << i)); + + input_sync(priv->idev); + +out: + return IRQ_HANDLED; +} + +static int cap11xx_set_sleep(struct cap11xx_priv *priv, bool sleep) +{ + /* + * DLSEEP mode will turn off all LEDS, prevent this + */ + if (IS_ENABLED(CONFIG_LEDS_CLASS) && priv->num_leds) + return 0; + + return regmap_update_bits(priv->regmap, CAP11XX_REG_MAIN_CONTROL, + CAP11XX_REG_MAIN_CONTROL_DLSEEP, + sleep ? CAP11XX_REG_MAIN_CONTROL_DLSEEP : 0); +} + +static int cap11xx_input_open(struct input_dev *idev) +{ + struct cap11xx_priv *priv = input_get_drvdata(idev); + + return cap11xx_set_sleep(priv, false); +} + +static void cap11xx_input_close(struct input_dev *idev) +{ + struct cap11xx_priv *priv = input_get_drvdata(idev); + + cap11xx_set_sleep(priv, true); +} + +#ifdef CONFIG_LEDS_CLASS +static int cap11xx_led_set(struct led_classdev *cdev, + enum led_brightness value) +{ + struct cap11xx_led *led = container_of(cdev, struct cap11xx_led, cdev); + struct cap11xx_priv *priv = led->priv; + + /* + * All LEDs share the same duty cycle as this is a HW + * limitation. Brightness levels per LED are either + * 0 (OFF) and 1 (ON). + */ + return regmap_update_bits(priv->regmap, + CAP11XX_REG_LED_OUTPUT_CONTROL, + BIT(led->reg), + value ? BIT(led->reg) : 0); +} + +static int cap11xx_init_leds(struct device *dev, + struct cap11xx_priv *priv, int num_leds) +{ + struct device_node *node = dev->of_node; + struct cap11xx_led *led; + int cnt = of_get_child_count(node); + int error; + + if (!num_leds || !cnt) + return 0; + + if (cnt > num_leds) + return -EINVAL; + + led = devm_kcalloc(dev, cnt, sizeof(struct cap11xx_led), GFP_KERNEL); + if (!led) + return -ENOMEM; + + priv->leds = led; + + error = regmap_update_bits(priv->regmap, + CAP11XX_REG_LED_OUTPUT_CONTROL, 0xff, 0); + if (error) + return error; + + error = regmap_update_bits(priv->regmap, CAP11XX_REG_LED_DUTY_CYCLE_4, + CAP11XX_REG_LED_DUTY_MAX_MASK, + CAP11XX_REG_LED_DUTY_MAX_VALUE << + CAP11XX_REG_LED_DUTY_MAX_MASK_SHIFT); + if (error) + return error; + + for_each_child_of_node_scoped(node, child) { + u32 reg; + + led->cdev.name = + of_get_property(child, "label", NULL) ? : child->name; + led->cdev.default_trigger = + of_get_property(child, "linux,default-trigger", NULL); + led->cdev.flags = 0; + led->cdev.brightness_set_blocking = cap11xx_led_set; + led->cdev.max_brightness = 1; + led->cdev.brightness = LED_OFF; + + error = of_property_read_u32(child, "reg", ®); + if (error != 0 || reg >= num_leds) + return -EINVAL; + + led->reg = reg; + led->priv = priv; + + error = devm_led_classdev_register(dev, &led->cdev); + if (error) + return error; + + priv->num_leds++; + led++; + } + + return 0; +} +#else +static int cap11xx_init_leds(struct device *dev, + struct cap11xx_priv *priv, int num_leds) +{ + return 0; +} +#endif + +static int cap11xx_i2c_probe(struct i2c_client *i2c_client) +{ + const struct i2c_device_id *id; + const struct cap11xx_hw_model *cap; + struct device *dev = &i2c_client->dev; + struct cap11xx_priv *priv; + int i, error; + unsigned int val, rev; + + id = i2c_client_get_device_id(i2c_client); + cap = i2c_get_match_data(i2c_client); + if (!id || !cap || !cap->num_channels) { + dev_err(dev, "Invalid device configuration\n"); + return -EINVAL; + } + + priv = devm_kzalloc(dev, + struct_size(priv, keycodes, cap->num_channels), + GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->dev = dev; + + priv->regmap = devm_regmap_init_i2c(i2c_client, &cap11xx_regmap_config); + if (IS_ERR(priv->regmap)) + return PTR_ERR(priv->regmap); + + error = regmap_read(priv->regmap, CAP11XX_REG_PRODUCT_ID, &val); + if (error) + return error; + + if (val != cap->product_id) { + dev_err(dev, "Product ID: Got 0x%02x, expected 0x%02x\n", + val, cap->product_id); + return -ENXIO; + } + + error = regmap_read(priv->regmap, CAP11XX_REG_MANUFACTURER_ID, &val); + if (error) + return error; + + if (val != CAP11XX_MANUFACTURER_ID) { + dev_err(dev, "Manufacturer ID: Got 0x%02x, expected 0x%02x\n", + val, CAP11XX_MANUFACTURER_ID); + return -ENXIO; + } + + error = regmap_read(priv->regmap, CAP11XX_REG_REVISION, &rev); + if (error < 0) + return error; + + dev_info(dev, "CAP11XX detected, model %s, revision 0x%02x\n", + id->name, rev); + + priv->model = cap; + + dev_info(dev, "CAP11XX device detected, model %s, revision 0x%02x\n", + id->name, rev); + + error = cap11xx_init_keys(priv); + if (error) + return error; + + priv->idev = devm_input_allocate_device(dev); + if (!priv->idev) + return -ENOMEM; + + priv->idev->name = "CAP11XX capacitive touch sensor"; + priv->idev->id.bustype = BUS_I2C; + priv->idev->evbit[0] = BIT_MASK(EV_KEY); + + if (of_property_read_bool(dev->of_node, "autorepeat")) + __set_bit(EV_REP, priv->idev->evbit); + + for (i = 0; i < cap->num_channels; i++) + __set_bit(priv->keycodes[i], priv->idev->keybit); + + __clear_bit(KEY_RESERVED, priv->idev->keybit); + + priv->idev->keycode = priv->keycodes; + priv->idev->keycodesize = sizeof(priv->keycodes[0]); + priv->idev->keycodemax = cap->num_channels; + + priv->idev->id.vendor = CAP11XX_MANUFACTURER_ID; + priv->idev->id.product = cap->product_id; + priv->idev->id.version = rev; + + priv->idev->open = cap11xx_input_open; + priv->idev->close = cap11xx_input_close; + + error = cap11xx_init_leds(dev, priv, cap->num_leds); + if (error) + return error; + + input_set_drvdata(priv->idev, priv); + + /* + * Put the device in deep sleep mode for now. + * ->open() will bring it back once the it is actually needed. + */ + cap11xx_set_sleep(priv, true); + + error = input_register_device(priv->idev); + if (error) + return error; + + error = devm_request_threaded_irq(dev, i2c_client->irq, + NULL, cap11xx_thread_func, + IRQF_ONESHOT, dev_name(dev), priv); + if (error) + return error; + + return 0; +} + +static const struct cap11xx_hw_model cap1106_model = { + .product_id = 0x55, .num_channels = 6, .num_leds = 0, + .has_gain = true, + .has_irq_config = true, +}; + +static const struct cap11xx_hw_model cap1126_model = { + .product_id = 0x53, .num_channels = 6, .num_leds = 2, + .has_gain = true, + .has_irq_config = true, +}; + +static const struct cap11xx_hw_model cap1188_model = { + .product_id = 0x50, .num_channels = 8, .num_leds = 8, + .has_gain = true, + .has_irq_config = true, +}; + +static const struct cap11xx_hw_model cap1203_model = { + .product_id = 0x6d, .num_channels = 3, .num_leds = 0, +}; + +static const struct cap11xx_hw_model cap1206_model = { + .product_id = 0x67, .num_channels = 6, .num_leds = 0, +}; + +static const struct cap11xx_hw_model cap1293_model = { + .product_id = 0x6f, .num_channels = 3, .num_leds = 0, + .has_gain = true, + .has_sensitivity_control = true, + .has_signal_guard = true, +}; + +static const struct cap11xx_hw_model cap1298_model = { + .product_id = 0x71, .num_channels = 8, .num_leds = 0, + .has_gain = true, + .has_sensitivity_control = true, + .has_signal_guard = true, +}; + +static const struct of_device_id cap11xx_dt_ids[] = { + { .compatible = "microchip,cap1106", .data = &cap1106_model }, + { .compatible = "microchip,cap1126", .data = &cap1126_model }, + { .compatible = "microchip,cap1188", .data = &cap1188_model }, + { .compatible = "microchip,cap1203", .data = &cap1203_model }, + { .compatible = "microchip,cap1206", .data = &cap1206_model }, + { .compatible = "microchip,cap1293", .data = &cap1293_model }, + { .compatible = "microchip,cap1298", .data = &cap1298_model }, + { } +}; +MODULE_DEVICE_TABLE(of, cap11xx_dt_ids); + +static const struct i2c_device_id cap11xx_i2c_ids[] = { + { "cap1106", (kernel_ulong_t)&cap1106_model }, + { "cap1126", (kernel_ulong_t)&cap1126_model }, + { "cap1188", (kernel_ulong_t)&cap1188_model }, + { "cap1203", (kernel_ulong_t)&cap1203_model }, + { "cap1206", (kernel_ulong_t)&cap1206_model }, + { "cap1293", (kernel_ulong_t)&cap1293_model }, + { "cap1298", (kernel_ulong_t)&cap1298_model }, + { } +}; +MODULE_DEVICE_TABLE(i2c, cap11xx_i2c_ids); + +static struct i2c_driver cap11xx_i2c_driver = { + .driver = { + .name = "cap11xx", + .of_match_table = cap11xx_dt_ids, + }, + .id_table = cap11xx_i2c_ids, + .probe = cap11xx_i2c_probe, +}; + +module_i2c_driver(cap11xx_i2c_driver); + +MODULE_DESCRIPTION("Microchip CAP11XX driver"); +MODULE_AUTHOR("Daniel Mack <linux@zonque.org>"); +MODULE_LICENSE("GPL v2"); |