diff options
Diffstat (limited to 'drivers/pwm/pwm-lpss-pci.c')
| -rw-r--r-- | drivers/pwm/pwm-lpss-pci.c | 78 |
1 files changed, 11 insertions, 67 deletions
diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c index c1527cb645be..ae25d9321d75 100644 --- a/drivers/pwm/pwm-lpss-pci.c +++ b/drivers/pwm/pwm-lpss-pci.c @@ -1,13 +1,10 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Intel Low Power Subsystem PWM controller PCI 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/kernel.h> @@ -17,52 +14,26 @@ #include "pwm-lpss.h" -/* BayTrail */ -static const struct pwm_lpss_boardinfo pwm_lpss_byt_info = { - .clk_rate = 25000000, - .npwm = 1, - .base_unit_bits = 16, -}; - -/* Braswell */ -static const struct pwm_lpss_boardinfo pwm_lpss_bsw_info = { - .clk_rate = 19200000, - .npwm = 1, - .base_unit_bits = 16, -}; - -/* Broxton */ -static const struct pwm_lpss_boardinfo pwm_lpss_bxt_info = { - .clk_rate = 19200000, - .npwm = 4, - .base_unit_bits = 22, - .bypass = true, -}; - -/* Tangier */ -static const struct pwm_lpss_boardinfo pwm_lpss_tng_info = { - .clk_rate = 19200000, - .npwm = 4, - .base_unit_bits = 22, -}; - static int pwm_lpss_probe_pci(struct pci_dev *pdev, const struct pci_device_id *id) { const struct pwm_lpss_boardinfo *info; - struct pwm_lpss_chip *lpwm; + void __iomem *io_base; + struct pwm_chip *chip; int err; err = pcim_enable_device(pdev); if (err < 0) return err; - info = (struct pwm_lpss_boardinfo *)id->driver_data; - lpwm = pwm_lpss_probe(&pdev->dev, &pdev->resource[0], info); - if (IS_ERR(lpwm)) - return PTR_ERR(lpwm); + io_base = pcim_iomap_region(pdev, 0, "pwm-lpss"); + if (IS_ERR(io_base)) + return PTR_ERR(io_base); - pci_set_drvdata(pdev, lpwm); + info = (struct pwm_lpss_boardinfo *)id->driver_data; + chip = devm_pwm_lpss_probe(&pdev->dev, io_base, info); + if (IS_ERR(chip)) + return PTR_ERR(chip); pm_runtime_put(&pdev->dev); pm_runtime_allow(&pdev->dev); @@ -72,35 +43,10 @@ static int pwm_lpss_probe_pci(struct pci_dev *pdev, static void pwm_lpss_remove_pci(struct pci_dev *pdev) { - struct pwm_lpss_chip *lpwm = pci_get_drvdata(pdev); - pm_runtime_forbid(&pdev->dev); pm_runtime_get_sync(&pdev->dev); - - pwm_lpss_remove(lpwm); -} - -#ifdef CONFIG_PM -static int pwm_lpss_runtime_suspend_pci(struct device *dev) -{ - /* - * The PCI core will handle transition to D3 automatically. We only - * need to provide runtime PM hooks for that to happen. - */ - return 0; } -static int pwm_lpss_runtime_resume_pci(struct device *dev) -{ - return 0; -} -#endif - -static const struct dev_pm_ops pwm_lpss_pci_pm = { - SET_RUNTIME_PM_OPS(pwm_lpss_runtime_suspend_pci, - pwm_lpss_runtime_resume_pci, NULL) -}; - static const struct pci_device_id pwm_lpss_pci_ids[] = { { PCI_VDEVICE(INTEL, 0x0ac8), (unsigned long)&pwm_lpss_bxt_info}, { PCI_VDEVICE(INTEL, 0x0f08), (unsigned long)&pwm_lpss_byt_info}, @@ -120,11 +66,9 @@ static struct pci_driver pwm_lpss_driver_pci = { .id_table = pwm_lpss_pci_ids, .probe = pwm_lpss_probe_pci, .remove = pwm_lpss_remove_pci, - .driver = { - .pm = &pwm_lpss_pci_pm, - }, }; module_pci_driver(pwm_lpss_driver_pci); MODULE_DESCRIPTION("PWM PCI driver for Intel LPSS"); MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS("PWM_LPSS"); |
