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path: root/drivers/pwm/pwm-lpss-pci.c
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Diffstat (limited to 'drivers/pwm/pwm-lpss-pci.c')
-rw-r--r--drivers/pwm/pwm-lpss-pci.c78
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");