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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * Intel Low Power Subsystem PWM controller PCI driver4 *5 * Copyright (C) 2014, Intel Corporation6 *7 * Derived from the original pwm-lpss.c8 */9 10#include <linux/kernel.h>11#include <linux/module.h>12#include <linux/pci.h>13#include <linux/pm_runtime.h>14 15#include "pwm-lpss.h"16 17static int pwm_lpss_probe_pci(struct pci_dev *pdev,18 const struct pci_device_id *id)19{20 const struct pwm_lpss_boardinfo *info;21 struct pwm_chip *chip;22 int err;23 24 err = pcim_enable_device(pdev);25 if (err < 0)26 return err;27 28 err = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));29 if (err)30 return err;31 32 info = (struct pwm_lpss_boardinfo *)id->driver_data;33 chip = devm_pwm_lpss_probe(&pdev->dev, pcim_iomap_table(pdev)[0], info);34 if (IS_ERR(chip))35 return PTR_ERR(chip);36 37 pm_runtime_put(&pdev->dev);38 pm_runtime_allow(&pdev->dev);39 40 return 0;41}42 43static void pwm_lpss_remove_pci(struct pci_dev *pdev)44{45 pm_runtime_forbid(&pdev->dev);46 pm_runtime_get_sync(&pdev->dev);47}48 49static const struct pci_device_id pwm_lpss_pci_ids[] = {50 { PCI_VDEVICE(INTEL, 0x0ac8), (unsigned long)&pwm_lpss_bxt_info},51 { PCI_VDEVICE(INTEL, 0x0f08), (unsigned long)&pwm_lpss_byt_info},52 { PCI_VDEVICE(INTEL, 0x0f09), (unsigned long)&pwm_lpss_byt_info},53 { PCI_VDEVICE(INTEL, 0x11a5), (unsigned long)&pwm_lpss_tng_info},54 { PCI_VDEVICE(INTEL, 0x1ac8), (unsigned long)&pwm_lpss_bxt_info},55 { PCI_VDEVICE(INTEL, 0x2288), (unsigned long)&pwm_lpss_bsw_info},56 { PCI_VDEVICE(INTEL, 0x2289), (unsigned long)&pwm_lpss_bsw_info},57 { PCI_VDEVICE(INTEL, 0x31c8), (unsigned long)&pwm_lpss_bxt_info},58 { PCI_VDEVICE(INTEL, 0x5ac8), (unsigned long)&pwm_lpss_bxt_info},59 { },60};61MODULE_DEVICE_TABLE(pci, pwm_lpss_pci_ids);62 63static struct pci_driver pwm_lpss_driver_pci = {64 .name = "pwm-lpss",65 .id_table = pwm_lpss_pci_ids,66 .probe = pwm_lpss_probe_pci,67 .remove = pwm_lpss_remove_pci,68};69module_pci_driver(pwm_lpss_driver_pci);70 71MODULE_DESCRIPTION("PWM PCI driver for Intel LPSS");72MODULE_LICENSE("GPL v2");73MODULE_IMPORT_NS(PWM_LPSS);74