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- /*
- * Intel Low Power Subsystem PWM controller driver
- *
- * Copyright (C) 2014, Intel Corporation
- *
- * Derived from the original pwm-lpss.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
- #include <linux/acpi.h>
- #include <linux/kernel.h>
- #include <linux/module.h>
- #include <linux/platform_device.h>
- #include <linux/pm_runtime.h>
- #include "pwm-lpss.h"
- static int pwm_lpss_probe_platform(struct platform_device *pdev)
- {
- const struct pwm_lpss_boardinfo *info;
- const struct acpi_device_id *id;
- struct pwm_lpss_chip *lpwm;
- struct resource *r;
- id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);
- if (!id)
- return -ENODEV;
- info = (const struct pwm_lpss_boardinfo *)id->driver_data;
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- lpwm = pwm_lpss_probe(&pdev->dev, r, info);
- if (IS_ERR(lpwm))
- return PTR_ERR(lpwm);
- platform_set_drvdata(pdev, lpwm);
- pm_runtime_set_active(&pdev->dev);
- pm_runtime_enable(&pdev->dev);
- return 0;
- }
- static int pwm_lpss_remove_platform(struct platform_device *pdev)
- {
- struct pwm_lpss_chip *lpwm = platform_get_drvdata(pdev);
- pm_runtime_disable(&pdev->dev);
- return pwm_lpss_remove(lpwm);
- }
- static SIMPLE_DEV_PM_OPS(pwm_lpss_platform_pm_ops,
- pwm_lpss_suspend,
- pwm_lpss_resume);
- static const struct acpi_device_id pwm_lpss_acpi_match[] = {
- { "80860F09", (unsigned long)&pwm_lpss_byt_info },
- { "80862288", (unsigned long)&pwm_lpss_bsw_info },
- { "80865AC8", (unsigned long)&pwm_lpss_bxt_info },
- { },
- };
- MODULE_DEVICE_TABLE(acpi, pwm_lpss_acpi_match);
- static struct platform_driver pwm_lpss_driver_platform = {
- .driver = {
- .name = "pwm-lpss",
- .acpi_match_table = pwm_lpss_acpi_match,
- .pm = &pwm_lpss_platform_pm_ops,
- },
- .probe = pwm_lpss_probe_platform,
- .remove = pwm_lpss_remove_platform,
- };
- module_platform_driver(pwm_lpss_driver_platform);
- MODULE_DESCRIPTION("PWM platform driver for Intel LPSS");
- MODULE_LICENSE("GPL v2");
- MODULE_ALIAS("platform:pwm-lpss");
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