// SPDX-License-Identifier: GPL-2.0
/* Author: Hans de Goede <hdegoede@redhat.com> */

#include <linux/acpi.h>
#include <linux/gpio/consumer.h>
#include <linux/leds.h>
#include <linux/platform_data/x86/int3472.h>

static int int3472_pled_set(struct led_classdev *led_cdev,
                                     enum led_brightness brightness)
{
        struct int3472_discrete_device *int3472 =
                container_of(led_cdev, struct int3472_discrete_device, pled.classdev);

        gpiod_set_value_cansleep(int3472->pled.gpio, brightness);
        return 0;
}

int skl_int3472_register_pled(struct int3472_discrete_device *int3472, struct gpio_desc *gpio)
{
        char *p;
        int ret;

        if (int3472->pled.classdev.dev)
                return -EBUSY;

        int3472->pled.gpio = gpio;

        /* Generate the name, replacing the ':' in the ACPI devname with '_' */
        snprintf(int3472->pled.name, sizeof(int3472->pled.name),
                 "%s::privacy_led", acpi_dev_name(int3472->sensor));
        p = strchr(int3472->pled.name, ':');
        if (p)
                *p = '_';

        int3472->pled.classdev.name = int3472->pled.name;
        int3472->pled.classdev.max_brightness = 1;
        int3472->pled.classdev.brightness_set_blocking = int3472_pled_set;

        ret = led_classdev_register(int3472->dev, &int3472->pled.classdev);
        if (ret)
                return ret;

        int3472->pled.lookup.provider = int3472->pled.name;
        int3472->pled.lookup.dev_id = int3472->sensor_name;
        int3472->pled.lookup.con_id = "privacy";
        led_add_lookup(&int3472->pled.lookup);

        return 0;
}

void skl_int3472_unregister_pled(struct int3472_discrete_device *int3472)
{
        if (IS_ERR_OR_NULL(int3472->pled.classdev.dev))
                return;

        led_remove_lookup(&int3472->pled.lookup);
        led_classdev_unregister(&int3472->pled.classdev);
        gpiod_put(int3472->pled.gpio);
}