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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Intel INT3472 ACPI camera sensor power-management support
*
* Author: Dan Scally <djrscally@gmail.com>
*/
#ifndef __PLATFORM_DATA_X86_INT3472_H
#define __PLATFORM_DATA_X86_INT3472_H
#include <linux/clk-provider.h>
#include <linux/gpio/machine.h>
#include <linux/leds.h>
#include <linux/regulator/driver.h>
#include <linux/regulator/machine.h>
#include <linux/types.h>
/* FIXME drop this once the I2C_DEV_NAME_FORMAT macro has been added to include/linux/i2c.h */
#ifndef I2C_DEV_NAME_FORMAT
#define I2C_DEV_NAME_FORMAT "i2c-%s"
#endif
/* PMIC GPIO Types */
#define INT3472_GPIO_TYPE_RESET 0x00
#define INT3472_GPIO_TYPE_POWERDOWN 0x01
#define INT3472_GPIO_TYPE_POWER_ENABLE 0x0b
#define INT3472_GPIO_TYPE_CLK_ENABLE 0x0c
#define INT3472_GPIO_TYPE_PRIVACY_LED 0x0d
#define INT3472_GPIO_TYPE_HANDSHAKE 0x12
#define INT3472_PDEV_MAX_NAME_LEN 23
#define INT3472_MAX_SENSOR_GPIOS 3
#define INT3472_MAX_REGULATORS 3
/* E.g. "avdd\0" */
#define GPIO_SUPPLY_NAME_LENGTH 5
/* 12 chars for acpi_dev_name() + "-", e.g. "ABCD1234:00-" */
#define GPIO_REGULATOR_NAME_LENGTH (12 + GPIO_SUPPLY_NAME_LENGTH)
/* lower- and upper-case mapping */
#define GPIO_REGULATOR_SUPPLY_MAP_COUNT 2
/*
* Ensure the GPIO is driven low/high for at least 2 ms before changing.
*
* 2 ms has been chosen because it is the minimum time ovXXXX sensors need to
* have their reset line driven logical high to properly register a reset.
*/
#define GPIO_REGULATOR_ENABLE_TIME (2 * USEC_PER_MSEC)
#define GPIO_REGULATOR_OFF_ON_DELAY (2 * USEC_PER_MSEC)
#define INT3472_LED_MAX_NAME_LEN 32
#define CIO2_SENSOR_SSDB_MCLKSPEED_OFFSET 86
#define INT3472_REGULATOR(_name, _ops, _enable_time, _off_on_delay) \
(const struct regulator_desc) { \
.name = _name, \
.type = REGULATOR_VOLTAGE, \
.ops = _ops, \
.owner = THIS_MODULE, \
.enable_time = _enable_time, \
.off_on_delay = _off_on_delay, \
}
#define to_int3472_clk(hw) \
container_of(hw, struct int3472_clock, clk_hw)
#define to_int3472_device(clk) \
container_of(clk, struct int3472_discrete_device, clock)
struct acpi_device;
struct dmi_system_id;
struct i2c_client;
struct platform_device;
struct int3472_cldb {
u8 version;
/*
* control logic type
* 0: UNKNOWN
* 1: DISCRETE(CRD-D)
* 2: PMIC TPS68470
* 3: PMIC uP6641
*/
u8 control_logic_type;
u8 control_logic_id;
u8 sensor_card_sku;
u8 reserved[10];
u8 clock_source;
u8 reserved2[17];
};
struct int3472_discrete_quirks {
/* For models where AVDD GPIO is shared between sensors */
const char *avdd_second_sensor;
};
struct int3472_gpio_regulator {
/* SUPPLY_MAP_COUNT * 2 to make room for second sensor mappings */
struct regulator_consumer_supply supply_map[GPIO_REGULATOR_SUPPLY_MAP_COUNT * 2];
char supply_name_upper[GPIO_SUPPLY_NAME_LENGTH];
char regulator_name[GPIO_REGULATOR_NAME_LENGTH];
struct gpio_desc *ena_gpio;
struct regulator_dev *rdev;
struct regulator_desc rdesc;
};
struct int3472_discrete_device {
struct acpi_device *adev;
struct device *dev;
struct acpi_device *sensor;
const char *sensor_name;
struct int3472_gpio_regulator regulators[INT3472_MAX_REGULATORS];
struct int3472_clock {
struct clk *clk;
struct clk_hw clk_hw;
struct clk_lookup *cl;
struct gpio_desc *ena_gpio;
u32 frequency;
u8 imgclk_index;
} clock;
struct int3472_pled {
struct led_classdev classdev;
struct led_lookup_data lookup;
char name[INT3472_LED_MAX_NAME_LEN];
struct gpio_desc *gpio;
} pled;
struct int3472_discrete_quirks quirks;
unsigned int ngpios; /* how many GPIOs have we seen */
unsigned int n_sensor_gpios; /* how many have we mapped to sensor */
unsigned int n_regulator_gpios; /* how many have we mapped to a regulator */
struct gpiod_lookup_table gpios;
};
extern const struct dmi_system_id skl_int3472_discrete_quirks[];
union acpi_object *skl_int3472_get_acpi_buffer(struct acpi_device *adev,
char *id);
int skl_int3472_fill_cldb(struct acpi_device *adev, struct int3472_cldb *cldb);
int skl_int3472_get_sensor_adev_and_name(struct device *dev,
struct acpi_device **sensor_adev_ret,
const char **name_ret);
int int3472_discrete_parse_crs(struct int3472_discrete_device *int3472);
void int3472_discrete_cleanup(struct int3472_discrete_device *int3472);
int skl_int3472_register_gpio_clock(struct int3472_discrete_device *int3472,
struct gpio_desc *gpio);
int skl_int3472_register_dsm_clock(struct int3472_discrete_device *int3472);
void skl_int3472_unregister_clock(struct int3472_discrete_device *int3472);
int skl_int3472_register_regulator(struct int3472_discrete_device *int3472,
struct gpio_desc *gpio,
unsigned int enable_time,
const char *supply_name,
const char *second_sensor);
void skl_int3472_unregister_regulator(struct int3472_discrete_device *int3472);
int skl_int3472_register_pled(struct int3472_discrete_device *int3472, struct gpio_desc *gpio);
void skl_int3472_unregister_pled(struct int3472_discrete_device *int3472);
#endif
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