config PWM_LPSS
tristate "Intel LPSS PWM support"
- depends on ACPI
help
Generic PWM framework driver for Intel Low Power Subsystem PWM
controller.
To compile this driver as a module, choose M here: the module
will be called pwm-lpss.
+config PWM_LPSS_PCI
+ tristate "Intel LPSS PWM PCI driver"
+ depends on PWM_LPSS && PCI
+ help
+ The PCI driver for Intel Low Power Subsystem PWM controller.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pwm-lpss-pci.
+
+config PWM_LPSS_PLATFORM
+ tristate "Intel LPSS PWM platform driver"
+ depends on PWM_LPSS && ACPI
+ help
+ The platform driver for Intel Low Power Subsystem PWM controller.
+
+ To compile this driver as a module, choose M here: the module
+ will be called pwm-lpss-platform.
+
config PWM_MXS
tristate "Freescale MXS PWM support"
depends on ARCH_MXS && OF
obj-$(CONFIG_PWM_LP3943) += pwm-lp3943.o
obj-$(CONFIG_PWM_LPC32XX) += pwm-lpc32xx.o
obj-$(CONFIG_PWM_LPSS) += pwm-lpss.o
+obj-$(CONFIG_PWM_LPSS_PCI) += pwm-lpss-pci.o
+obj-$(CONFIG_PWM_LPSS_PLATFORM) += pwm-lpss-platform.o
obj-$(CONFIG_PWM_MXS) += pwm-mxs.o
obj-$(CONFIG_PWM_PCA9685) += pwm-pca9685.o
obj-$(CONFIG_PWM_PUV3) += pwm-puv3.o
--- /dev/null
+/*
+ * 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>
+#include <linux/module.h>
+#include <linux/pci.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;
+ struct pwm_lpss_chip *lpwm;
+ int err;
+
+ err = pci_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);
+
+ pci_set_drvdata(pdev, lpwm);
+ return 0;
+}
+
+static void pwm_lpss_remove_pci(struct pci_dev *pdev)
+{
+ struct pwm_lpss_chip *lpwm = pci_get_drvdata(pdev);
+
+ pwm_lpss_remove(lpwm);
+ pci_disable_device(pdev);
+}
+
+static const struct pci_device_id pwm_lpss_pci_ids[] = {
+ { PCI_VDEVICE(INTEL, 0x0f08), (unsigned long)&pwm_lpss_byt_info},
+ { PCI_VDEVICE(INTEL, 0x0f09), (unsigned long)&pwm_lpss_byt_info},
+ { PCI_VDEVICE(INTEL, 0x2288), (unsigned long)&pwm_lpss_bsw_info},
+ { PCI_VDEVICE(INTEL, 0x2289), (unsigned long)&pwm_lpss_bsw_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");
--- /dev/null
+/*
+ * 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>
+
+#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);
+ return 0;
+}
+
+static int pwm_lpss_remove_platform(struct platform_device *pdev)
+{
+ struct pwm_lpss_chip *lpwm = platform_get_drvdata(pdev);
+
+ 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 },
+ { },
+};
+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");
* published by the Free Software Foundation.
*/
-#include <linux/acpi.h>
-#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/pwm.h>
-#include <linux/platform_device.h>
-#include <linux/pci.h>
-static int pci_drv, plat_drv; /* So we know which drivers registered */
+#include "pwm-lpss.h"
#define PWM 0x00000000
#define PWM_ENABLE BIT(31)
unsigned long clk_rate;
};
-struct pwm_lpss_boardinfo {
- unsigned long clk_rate;
-};
-
/* BayTrail */
-static const struct pwm_lpss_boardinfo byt_info = {
+const struct pwm_lpss_boardinfo pwm_lpss_byt_info = {
25000000
};
+EXPORT_SYMBOL_GPL(pwm_lpss_byt_info);
/* Braswell */
-static const struct pwm_lpss_boardinfo bsw_info = {
+const struct pwm_lpss_boardinfo pwm_lpss_bsw_info = {
19200000
};
+EXPORT_SYMBOL_GPL(pwm_lpss_bsw_info);
static inline struct pwm_lpss_chip *to_lpwm(struct pwm_chip *chip)
{
.owner = THIS_MODULE,
};
-static struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev,
- struct resource *r,
- const struct pwm_lpss_boardinfo *info)
+struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
+ const struct pwm_lpss_boardinfo *info)
{
struct pwm_lpss_chip *lpwm;
int ret;
return lpwm;
}
+EXPORT_SYMBOL_GPL(pwm_lpss_probe);
-static int pwm_lpss_remove(struct pwm_lpss_chip *lpwm)
+int pwm_lpss_remove(struct pwm_lpss_chip *lpwm)
{
u32 ctrl;
return pwmchip_remove(&lpwm->chip);
}
-
-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;
- int err;
-
- err = pci_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);
-
- pci_set_drvdata(pdev, lpwm);
- return 0;
-}
-
-static void pwm_lpss_remove_pci(struct pci_dev *pdev)
-{
- struct pwm_lpss_chip *lpwm = pci_get_drvdata(pdev);
-
- pwm_lpss_remove(lpwm);
- pci_disable_device(pdev);
-}
-
-static struct pci_device_id pwm_lpss_pci_ids[] = {
- { PCI_VDEVICE(INTEL, 0x0f08), (unsigned long)&byt_info},
- { PCI_VDEVICE(INTEL, 0x0f09), (unsigned long)&byt_info},
- { PCI_VDEVICE(INTEL, 0x2288), (unsigned long)&bsw_info},
- { PCI_VDEVICE(INTEL, 0x2289), (unsigned long)&bsw_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,
-};
-
-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;
-
- r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-
- info = (struct pwm_lpss_boardinfo *)id->driver_data;
- lpwm = pwm_lpss_probe(&pdev->dev, r, info);
- if (IS_ERR(lpwm))
- return PTR_ERR(lpwm);
-
- platform_set_drvdata(pdev, lpwm);
- return 0;
-}
-
-static int pwm_lpss_remove_platform(struct platform_device *pdev)
-{
- struct pwm_lpss_chip *lpwm = platform_get_drvdata(pdev);
-
- return pwm_lpss_remove(lpwm);
-}
-
-static const struct acpi_device_id pwm_lpss_acpi_match[] = {
- { "80860F09", (unsigned long)&byt_info },
- { "80862288", (unsigned long)&bsw_info },
- { },
-};
-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,
-};
-
-static int __init pwm_init(void)
-{
- pci_drv = pci_register_driver(&pwm_lpss_driver_pci);
- plat_drv = platform_driver_register(&pwm_lpss_driver_platform);
- if (pci_drv && plat_drv)
- return pci_drv;
-
- return 0;
-}
-module_init(pwm_init);
-
-static void __exit pwm_exit(void)
-{
- if (!pci_drv)
- pci_unregister_driver(&pwm_lpss_driver_pci);
- if (!plat_drv)
- platform_driver_unregister(&pwm_lpss_driver_platform);
-}
-module_exit(pwm_exit);
+EXPORT_SYMBOL_GPL(pwm_lpss_remove);
MODULE_DESCRIPTION("PWM driver for Intel LPSS");
MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:pwm-lpss");
--- /dev/null
+/*
+ * 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.
+ */
+
+#ifndef __PWM_LPSS_H
+#define __PWM_LPSS_H
+
+#include <linux/device.h>
+#include <linux/pwm.h>
+
+struct pwm_lpss_chip;
+
+struct pwm_lpss_boardinfo {
+ unsigned long clk_rate;
+};
+
+extern const struct pwm_lpss_boardinfo pwm_lpss_byt_info;
+extern const struct pwm_lpss_boardinfo pwm_lpss_bsw_info;
+
+struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
+ const struct pwm_lpss_boardinfo *info);
+int pwm_lpss_remove(struct pwm_lpss_chip *lpwm);
+
+#endif /* __PWM_LPSS_H */
projects / platform / kernel / linux-stable.git / commitdiff