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drivers/pwm/pwm-lpss-platform.c
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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> |
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#include <linux/pm_runtime.h> |
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#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); |
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pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); |
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return 0; } static int pwm_lpss_remove_platform(struct platform_device *pdev) { struct pwm_lpss_chip *lpwm = platform_get_drvdata(pdev); |
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pm_runtime_disable(&pdev->dev); |
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return pwm_lpss_remove(lpwm); } static const struct acpi_device_id pwm_lpss_acpi_match[] = { { "80860F09", (unsigned long)&pwm_lpss_byt_info }, { "80862288", (unsigned long)&pwm_lpss_bsw_info }, |
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{ "80865AC8", (unsigned long)&pwm_lpss_bxt_info }, |
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{ }, }; 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, }, .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"); |