diff options
Diffstat (limited to 'drivers/pwm/pwm-lpss-pci.c')
| -rw-r--r-- | drivers/pwm/pwm-lpss-pci.c | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c new file mode 100644 index 000000000000..ae25d9321d75 --- /dev/null +++ b/drivers/pwm/pwm-lpss-pci.c @@ -0,0 +1,74 @@ +// 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 + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/pm_runtime.h> + +#include "pwm-lpss.h" + +static int pwm_lpss_probe_pci(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + const struct pwm_lpss_boardinfo *info; + void __iomem *io_base; + struct pwm_chip *chip; + int err; + + err = pcim_enable_device(pdev); + if (err < 0) + return err; + + io_base = pcim_iomap_region(pdev, 0, "pwm-lpss"); + if (IS_ERR(io_base)) + return PTR_ERR(io_base); + + 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); + + return 0; +} + +static void pwm_lpss_remove_pci(struct pci_dev *pdev) +{ + pm_runtime_forbid(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); +} + +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}, + { PCI_VDEVICE(INTEL, 0x0f09), (unsigned long)&pwm_lpss_byt_info}, + { PCI_VDEVICE(INTEL, 0x11a5), (unsigned long)&pwm_lpss_tng_info}, + { PCI_VDEVICE(INTEL, 0x1ac8), (unsigned long)&pwm_lpss_bxt_info}, + { PCI_VDEVICE(INTEL, 0x2288), (unsigned long)&pwm_lpss_bsw_info}, + { PCI_VDEVICE(INTEL, 0x2289), (unsigned long)&pwm_lpss_bsw_info}, + { PCI_VDEVICE(INTEL, 0x31c8), (unsigned long)&pwm_lpss_bxt_info}, + { PCI_VDEVICE(INTEL, 0x5ac8), (unsigned long)&pwm_lpss_bxt_info}, + { }, +}; +MODULE_DEVICE_TABLE(pci, pwm_lpss_pci_ids); + +static struct pci_driver pwm_lpss_driver_pci = { + .name = "pwm-lpss", + .id_table = pwm_lpss_pci_ids, + .probe = pwm_lpss_probe_pci, + .remove = pwm_lpss_remove_pci, +}; +module_pci_driver(pwm_lpss_driver_pci); + +MODULE_DESCRIPTION("PWM PCI driver for Intel LPSS"); +MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS("PWM_LPSS"); |
