diff options
Diffstat (limited to 'drivers/platform/x86/intel_atomisp2_led.c')
| -rw-r--r-- | drivers/platform/x86/intel_atomisp2_led.c | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/drivers/platform/x86/intel_atomisp2_led.c b/drivers/platform/x86/intel_atomisp2_led.c deleted file mode 100644 index 5935dfca166f..000000000000 --- a/drivers/platform/x86/intel_atomisp2_led.c +++ /dev/null @@ -1,116 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * Driver for controlling LEDs for cameras connected to the Intel atomisp2 - * The main purpose of this driver is to turn off LEDs which are on at boot. - * - * Copyright (C) 2020 Hans de Goede <hdegoede@redhat.com> - */ - -#include <linux/dmi.h> -#include <linux/gpio/consumer.h> -#include <linux/gpio/machine.h> -#include <linux/leds.h> -#include <linux/module.h> -#include <linux/mod_devicetable.h> -#include <linux/platform_device.h> -#include <linux/workqueue.h> - -/* This must be leds-gpio as the leds-gpio driver binds to the name */ -#define DEV_NAME "leds-gpio" - -static const struct gpio_led atomisp2_leds[] = { - { - .name = "atomisp2::camera", - .default_state = LEDS_GPIO_DEFSTATE_OFF, - }, -}; - -static const struct gpio_led_platform_data atomisp2_leds_pdata = { - .num_leds = ARRAY_SIZE(atomisp2_leds), - .leds = atomisp2_leds, -}; - -static struct gpiod_lookup_table asus_t100ta_lookup = { - .dev_id = DEV_NAME, - .table = { - GPIO_LOOKUP_IDX("INT33FC:02", 8, NULL, 0, GPIO_ACTIVE_HIGH), - { } - } -}; - -static struct gpiod_lookup_table asus_t100chi_lookup = { - .dev_id = DEV_NAME, - .table = { - GPIO_LOOKUP_IDX("INT33FC:01", 24, NULL, 0, GPIO_ACTIVE_HIGH), - { } - } -}; - -static const struct dmi_system_id atomisp2_led_systems[] __initconst = { - { - .matches = { - DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100TA"), - }, - .driver_data = &asus_t100ta_lookup, - }, - { - .matches = { - DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T200TA"), - }, - .driver_data = &asus_t100ta_lookup, - }, - { - .matches = { - DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100CHI"), - }, - .driver_data = &asus_t100chi_lookup, - }, - {} /* Terminating entry */ -}; -MODULE_DEVICE_TABLE(dmi, atomisp2_led_systems); - -static struct gpiod_lookup_table *gpio_lookup; -static struct platform_device *pdev; - -static int __init atomisp2_led_init(void) -{ - const struct dmi_system_id *system; - - system = dmi_first_match(atomisp2_led_systems); - if (!system) - return -ENODEV; - - gpio_lookup = system->driver_data; - gpiod_add_lookup_table(gpio_lookup); - - pdev = platform_device_register_resndata(NULL, - DEV_NAME, PLATFORM_DEVID_NONE, - NULL, 0, &atomisp2_leds_pdata, - sizeof(atomisp2_leds_pdata)); - if (IS_ERR(pdev)) - gpiod_remove_lookup_table(gpio_lookup); - - return PTR_ERR_OR_ZERO(pdev); -} - -static void __exit atomisp2_led_cleanup(void) -{ - platform_device_unregister(pdev); - gpiod_remove_lookup_table(gpio_lookup); -} - -module_init(atomisp2_led_init); -module_exit(atomisp2_led_cleanup); - -/* - * The ACPI INIT method from Asus WMI's code on the T100TA and T200TA turns the - * LED on (without the WMI interface allowing further control over the LED). - * Ensure we are loaded after asus-nb-wmi so that we turn the LED off again. - */ -MODULE_SOFTDEP("pre: asus_nb_wmi"); -MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com"); -MODULE_DESCRIPTION("Intel atomisp2 camera LED driver"); -MODULE_LICENSE("GPL"); |
