The driver consists core, PCI, and platform parts. It would better to split them into separate files.
While here, move to use macros module_pci_driver() and module_platform_driver(). Signed-off-by: Andy Shevchenko <[email protected]> --- drivers/pwm/Kconfig | 18 ++++++ drivers/pwm/Makefile | 2 + drivers/pwm/pwm-lpss-pci.c | 69 +++++++++++++++++++++++ drivers/pwm/pwm-lpss-plat.c | 61 ++++++++++++++++++++ drivers/pwm/pwm-lpss.c | 133 ++------------------------------------------ drivers/pwm/pwm-lpss.h | 35 ++++++++++++ 6 files changed, 191 insertions(+), 127 deletions(-) create mode 100644 drivers/pwm/pwm-lpss-pci.c create mode 100644 drivers/pwm/pwm-lpss-plat.c create mode 100644 drivers/pwm/pwm-lpss.h diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig index 936010a..425f6fe 100644 --- a/drivers/pwm/Kconfig +++ b/drivers/pwm/Kconfig @@ -157,6 +157,24 @@ config PWM_LPSS 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" + select PWN_LPSS_CORE + 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. + +config PWM_LPSS_PLAT + tristate "Intel LPSS PWM platform driver" + select PWN_LPSS_CORE + 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. + config PWM_MXS tristate "Freescale MXS PWM support" depends on ARCH_MXS && OF diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile index e03e2ae..e84dfa4 100644 --- a/drivers/pwm/Makefile +++ b/drivers/pwm/Makefile @@ -13,6 +13,8 @@ obj-$(CONFIG_PWM_JZ4740) += pwm-jz4740.o obj-$(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_PLAT) += pwm-lpss-plat.o obj-$(CONFIG_PWM_MXS) += pwm-mxs.o obj-$(CONFIG_PWM_PCA9685) += pwm-pca9685.o obj-$(CONFIG_PWM_PUV3) += pwm-puv3.o diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c new file mode 100644 index 0000000..48b88dd --- /dev/null +++ b/drivers/pwm/pwm-lpss-pci.c @@ -0,0 +1,69 @@ +/* + * 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" + +/* BayTrail */ +static const struct pwm_lpss_boardinfo byt_info = { + 25000000, +}; + +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}, + { }, +}; +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"); diff --git a/drivers/pwm/pwm-lpss-plat.c b/drivers/pwm/pwm-lpss-plat.c new file mode 100644 index 0000000..fbecc7a --- /dev/null +++ b/drivers/pwm/pwm-lpss-plat.c @@ -0,0 +1,61 @@ +/* + * 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) +{ + struct pwm_lpss_chip *lpwm; + struct resource *r; + + r = platform_get_resource(pdev, IORESOURCE_MEM, 0); + + lpwm = pwm_lpss_probe(&pdev->dev, r, NULL); + 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", 0 }, + { }, +}; +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"); diff --git a/drivers/pwm/pwm-lpss.c b/drivers/pwm/pwm-lpss.c index 44ce6c6..3ad055b 100644 --- a/drivers/pwm/pwm-lpss.c +++ b/drivers/pwm/pwm-lpss.c @@ -13,16 +13,10 @@ * published by the Free Software Foundation. */ -#include <linux/acpi.h> -#include <linux/clk.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) @@ -34,22 +28,6 @@ static int pci_drv, plat_drv; /* So we know which drivers registered */ #define PWM_LIMIT (0x8000 + PWM_DIVISION_CORRECTION) #define NSECS_PER_SEC 1000000000UL -struct pwm_lpss_chip { - struct pwm_chip chip; - void __iomem *regs; - struct clk *clk; - unsigned long clk_rate; -}; - -struct pwm_lpss_boardinfo { - unsigned long clk_rate; -}; - -/* BayTrail */ -static const struct pwm_lpss_boardinfo byt_info = { - 25000000 -}; - static inline struct pwm_lpss_chip *to_lpwm(struct pwm_chip *chip) { return container_of(chip, struct pwm_lpss_chip, chip); @@ -127,9 +105,8 @@ static const struct pwm_ops pwm_lpss_ops = { .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; @@ -166,8 +143,9 @@ static struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, 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; @@ -176,107 +154,8 @@ static int pwm_lpss_remove(struct pwm_lpss_chip *lpwm) 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}, - { }, -}; -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) -{ - struct pwm_lpss_chip *lpwm; - struct resource *r; - - r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - lpwm = pwm_lpss_probe(&pdev->dev, r, NULL); - 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", 0 }, - { }, -}; -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 <[email protected]>"); MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:pwm-lpss"); diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h new file mode 100644 index 0000000..90e70af --- /dev/null +++ b/drivers/pwm/pwm-lpss.h @@ -0,0 +1,35 @@ +/* + * 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/pwm.h> +#include <linux/clk.h> +#include <linux/device.h> + +struct pwm_lpss_chip { + struct pwm_chip chip; + void __iomem *regs; + struct clk *clk; + unsigned long clk_rate; +}; + +struct pwm_lpss_boardinfo { + unsigned long clk_rate; +}; + +extern struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, + struct resource *r, const struct pwm_lpss_boardinfo *info); +extern int pwm_lpss_remove(struct pwm_lpss_chip *lpwm); + +#endif /* __PWM_LPSS_H */ -- 2.0.1 -- To unsubscribe from this list: send the line "unsubscribe linux-pwm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
