diff options
Diffstat (limited to 'arch/arm/plat-samsung')
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h | 172 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/gpio-cfg.h | 34 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/gpio-core.h | 97 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/gpio-fns.h | 98 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/pm.h | 10 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/pm-gpio.c | 72 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/pm.c | 6 |
7 files changed, 226 insertions, 263 deletions
diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h index 9a4e53d52967..a181d7ce81cf 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h +++ b/arch/arm/plat-samsung/include/plat/gpio-cfg-helpers.h @@ -1,11 +1,11 @@ -/* linux/arch/arm/plat-s3c/include/plat/gpio-cfg-helper.h +/* linux/arch/arm/plat-samsung/include/plat/gpio-cfg-helper.h * * Copyright 2008 Openmoko, Inc. * Copyright 2008 Simtec Electronics * http://armlinux.simtec.co.uk/ * Ben Dooks <ben@simtec.co.uk> * - * S3C Platform - GPIO pin configuration helper definitions + * Samsung Platform - GPIO pin configuration helper definitions * * 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 @@ -24,120 +24,30 @@ * by disabling interrupts. */ -static inline int s3c_gpio_do_setcfg(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int config) +static inline int samsung_gpio_do_setcfg(struct samsung_gpio_chip *chip, + unsigned int off, unsigned int config) { return (chip->config->set_config)(chip, off, config); } -static inline unsigned s3c_gpio_do_getcfg(struct s3c_gpio_chip *chip, - unsigned int off) +static inline unsigned samsung_gpio_do_getcfg(struct samsung_gpio_chip *chip, + unsigned int off) { return (chip->config->get_config)(chip, off); } -static inline int s3c_gpio_do_setpull(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull) +static inline int samsung_gpio_do_setpull(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull) { return (chip->config->set_pull)(chip, off, pull); } -static inline s3c_gpio_pull_t s3c_gpio_do_getpull(struct s3c_gpio_chip *chip, - unsigned int off) +static inline samsung_gpio_pull_t samsung_gpio_do_getpull(struct samsung_gpio_chip *chip, + unsigned int off) { return chip->config->get_pull(chip, off); } -/** - * s3c_gpio_setcfg_s3c24xx - S3C24XX style GPIO configuration. - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @cfg: The configuration value to set. - * - * This helper deal with the GPIO cases where the control register - * has two bits of configuration per gpio, which have the following - * functions: - * 00 = input - * 01 = output - * 1x = special function -*/ -extern int s3c_gpio_setcfg_s3c24xx(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int cfg); - -/** - * s3c_gpio_getcfg_s3c24xx - S3C24XX style GPIO configuration read. - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * - * The reverse of s3c_gpio_setcfg_s3c24xx(). Will return a value whicg - * could be directly passed back to s3c_gpio_setcfg_s3c24xx(), from the - * S3C_GPIO_SPECIAL() macro. - */ -unsigned int s3c_gpio_getcfg_s3c24xx(struct s3c_gpio_chip *chip, - unsigned int off); - -/** - * s3c_gpio_setcfg_s3c24xx_a - S3C24XX style GPIO configuration (Bank A) - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @cfg: The configuration value to set. - * - * This helper deal with the GPIO cases where the control register - * has one bit of configuration for the gpio, where setting the bit - * means the pin is in special function mode and unset means output. -*/ -extern int s3c_gpio_setcfg_s3c24xx_a(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int cfg); - - -/** - * s3c_gpio_getcfg_s3c24xx_a - S3C24XX style GPIO configuration read (Bank A) - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * - * The reverse of s3c_gpio_setcfg_s3c24xx_a() turning an GPIO into a usable - * GPIO configuration value. - * - * @sa s3c_gpio_getcfg_s3c24xx - * @sa s3c_gpio_getcfg_s3c64xx_4bit - */ -extern unsigned s3c_gpio_getcfg_s3c24xx_a(struct s3c_gpio_chip *chip, - unsigned int off); - -/** - * s3c_gpio_setcfg_s3c64xx_4bit - S3C64XX 4bit single register GPIO config. - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * @cfg: The configuration value to set. - * - * This helper deal with the GPIO cases where the control register has 4 bits - * of control per GPIO, generally in the form of: - * 0000 = Input - * 0001 = Output - * others = Special functions (dependent on bank) - * - * Note, since the code to deal with the case where there are two control - * registers instead of one, we do not have a separate set of functions for - * each case. -*/ -extern int s3c_gpio_setcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip, - unsigned int off, unsigned int cfg); - - -/** - * s3c_gpio_getcfg_s3c64xx_4bit - S3C64XX 4bit single register GPIO config read. - * @chip: The gpio chip that is being configured. - * @off: The offset for the GPIO being configured. - * - * The reverse of s3c_gpio_setcfg_s3c64xx_4bit(), turning a gpio configuration - * register setting into a value the software can use, such as could be passed - * to s3c_gpio_setcfg_s3c64xx_4bit(). - * - * @sa s3c_gpio_getcfg_s3c24xx - */ -extern unsigned s3c_gpio_getcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip, - unsigned int off); - /* Pull-{up,down} resistor controls. * * S3C2410,S3C2440 = Pull-UP, @@ -147,7 +57,7 @@ extern unsigned s3c_gpio_getcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip, */ /** - * s3c_gpio_setpull_1up() - Pull configuration for choice of up or none. + * s3c24xx_gpio_setpull_1up() - Pull configuration for choice of up or none. * @chip: The gpio chip that is being configured. * @off: The offset for the GPIO being configured. * @param: pull: The pull mode being requested. @@ -155,11 +65,11 @@ extern unsigned s3c_gpio_getcfg_s3c64xx_4bit(struct s3c_gpio_chip *chip, * This is a helper function for the case where we have GPIOs with one * bit configuring the presence of a pull-up resistor. */ -extern int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull); +extern int s3c24xx_gpio_setpull_1up(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull); /** - * s3c_gpio_setpull_1down() - Pull configuration for choice of down or none + * s3c24xx_gpio_setpull_1down() - Pull configuration for choice of down or none * @chip: The gpio chip that is being configured * @off: The offset for the GPIO being configured * @param: pull: The pull mode being requested @@ -167,11 +77,13 @@ extern int s3c_gpio_setpull_1up(struct s3c_gpio_chip *chip, * This is a helper function for the case where we have GPIOs with one * bit configuring the presence of a pull-down resistor. */ -extern int s3c_gpio_setpull_1down(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull); +extern int s3c24xx_gpio_setpull_1down(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull); /** - * s3c_gpio_setpull_upown() - Pull configuration for choice of up, down or none + * samsung_gpio_setpull_upown() - Pull configuration for choice of up, + * down or none + * * @chip: The gpio chip that is being configured. * @off: The offset for the GPIO being configured. * @param: pull: The pull mode being requested. @@ -183,45 +95,46 @@ extern int s3c_gpio_setpull_1down(struct s3c_gpio_chip *chip, * 01 = Pull-up resistor connected * 10 = Pull-down resistor connected */ -extern int s3c_gpio_setpull_updown(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull); - +extern int samsung_gpio_setpull_updown(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull); /** - * s3c_gpio_getpull_updown() - Get configuration for choice of up, down or none + * samsung_gpio_getpull_updown() - Get configuration for choice of up, + * down or none + * * @chip: The gpio chip that the GPIO pin belongs to * @off: The offset to the pin to get the configuration of. * - * This helper function reads the state of the pull-{up,down} resistor for the - * given GPIO in the same case as s3c_gpio_setpull_upown. + * This helper function reads the state of the pull-{up,down} resistor + * for the given GPIO in the same case as samsung_gpio_setpull_upown. */ -extern s3c_gpio_pull_t s3c_gpio_getpull_updown(struct s3c_gpio_chip *chip, - unsigned int off); +extern samsung_gpio_pull_t samsung_gpio_getpull_updown(struct samsung_gpio_chip *chip, + unsigned int off); /** - * s3c_gpio_getpull_1up() - Get configuration for choice of up or none + * s3c24xx_gpio_getpull_1up() - Get configuration for choice of up or none * @chip: The gpio chip that the GPIO pin belongs to * @off: The offset to the pin to get the configuration of. * * This helper function reads the state of the pull-up resistor for the - * given GPIO in the same case as s3c_gpio_setpull_1up. + * given GPIO in the same case as s3c24xx_gpio_setpull_1up. */ -extern s3c_gpio_pull_t s3c_gpio_getpull_1up(struct s3c_gpio_chip *chip, - unsigned int off); +extern samsung_gpio_pull_t s3c24xx_gpio_getpull_1up(struct samsung_gpio_chip *chip, + unsigned int off); /** - * s3c_gpio_getpull_1down() - Get configuration for choice of down or none + * s3c24xx_gpio_getpull_1down() - Get configuration for choice of down or none * @chip: The gpio chip that the GPIO pin belongs to * @off: The offset to the pin to get the configuration of. * * This helper function reads the state of the pull-down resistor for the - * given GPIO in the same case as s3c_gpio_setpull_1down. + * given GPIO in the same case as s3c24xx_gpio_setpull_1down. */ -extern s3c_gpio_pull_t s3c_gpio_getpull_1down(struct s3c_gpio_chip *chip, - unsigned int off); +extern samsung_gpio_pull_t s3c24xx_gpio_getpull_1down(struct samsung_gpio_chip *chip, + unsigned int off); /** - * s3c_gpio_setpull_s3c2443() - Pull configuration for s3c2443. + * s3c2443_gpio_setpull() - Pull configuration for s3c2443. * @chip: The gpio chip that is being configured. * @off: The offset for the GPIO being configured. * @param: pull: The pull mode being requested. @@ -233,19 +146,18 @@ extern s3c_gpio_pull_t s3c_gpio_getpull_1down(struct s3c_gpio_chip *chip, * 10 = Pull-down resistor connected * x1 = No pull up resistor */ -extern int s3c_gpio_setpull_s3c2443(struct s3c_gpio_chip *chip, - unsigned int off, s3c_gpio_pull_t pull); +extern int s3c2443_gpio_setpull(struct samsung_gpio_chip *chip, + unsigned int off, samsung_gpio_pull_t pull); /** - * s3c_gpio_getpull_s3c2443() - Get configuration for s3c2443 pull resistors + * s3c2443_gpio_getpull() - Get configuration for s3c2443 pull resistors * @chip: The gpio chip that the GPIO pin belongs to. * @off: The offset to the pin to get the configuration of. * * This helper function reads the state of the pull-{up,down} resistor for the - * given GPIO in the same case as s3c_gpio_setpull_upown. + * given GPIO in the same case as samsung_gpio_setpull_upown. */ -extern s3c_gpio_pull_t s3c_gpio_getpull_s3c2443(struct s3c_gpio_chip *chip, +extern samsung_gpio_pull_t s3c2443_gpio_getpull(struct samsung_gpio_chip *chip, unsigned int off); #endif /* __PLAT_GPIO_CFG_HELPERS_H */ - diff --git a/arch/arm/plat-samsung/include/plat/gpio-cfg.h b/arch/arm/plat-samsung/include/plat/gpio-cfg.h index 1762dcb4cb9e..d48245bb02b3 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-cfg.h +++ b/arch/arm/plat-samsung/include/plat/gpio-cfg.h @@ -24,14 +24,14 @@ #ifndef __PLAT_GPIO_CFG_H #define __PLAT_GPIO_CFG_H __FILE__ -typedef unsigned int __bitwise__ s3c_gpio_pull_t; +typedef unsigned int __bitwise__ samsung_gpio_pull_t; typedef unsigned int __bitwise__ s5p_gpio_drvstr_t; /* forward declaration if gpio-core.h hasn't been included */ -struct s3c_gpio_chip; +struct samsung_gpio_chip; /** - * struct s3c_gpio_cfg GPIO configuration + * struct samsung_gpio_cfg GPIO configuration * @cfg_eint: Configuration setting when used for external interrupt source * @get_pull: Read the current pull configuration for the GPIO * @set_pull: Set the current pull configuraiton for the GPIO @@ -44,20 +44,20 @@ struct s3c_gpio_chip; * per-bank configuration information that other systems such as the * external interrupt code will need. * - * @sa s3c_gpio_cfgpin + * @sa samsung_gpio_cfgpin * @sa s3c_gpio_getcfg * @sa s3c_gpio_setpull * @sa s3c_gpio_getpull */ -struct s3c_gpio_cfg { +struct samsung_gpio_cfg { unsigned int cfg_eint; - s3c_gpio_pull_t (*get_pull)(struct s3c_gpio_chip *chip, unsigned offs); - int (*set_pull)(struct s3c_gpio_chip *chip, unsigned offs, - s3c_gpio_pull_t pull); + samsung_gpio_pull_t (*get_pull)(struct samsung_gpio_chip *chip, unsigned offs); + int (*set_pull)(struct samsung_gpio_chip *chip, unsigned offs, + samsung_gpio_pull_t pull); - unsigned (*get_config)(struct s3c_gpio_chip *chip, unsigned offs); - int (*set_config)(struct s3c_gpio_chip *chip, unsigned offs, + unsigned (*get_config)(struct samsung_gpio_chip *chip, unsigned offs); + int (*set_config)(struct samsung_gpio_chip *chip, unsigned offs, unsigned config); }; @@ -69,7 +69,7 @@ struct s3c_gpio_cfg { #define S3C_GPIO_OUTPUT (S3C_GPIO_SPECIAL(1)) #define S3C_GPIO_SFN(x) (S3C_GPIO_SPECIAL(x)) -#define s3c_gpio_is_cfg_special(_cfg) \ +#define samsung_gpio_is_cfg_special(_cfg) \ (((_cfg) & S3C_GPIO_SPECIAL_MARK) == S3C_GPIO_SPECIAL_MARK) /** @@ -128,9 +128,9 @@ extern int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr, * up or down settings, and it may be dependent on the chip that is being * used to whether the particular mode is available. */ -#define S3C_GPIO_PULL_NONE ((__force s3c_gpio_pull_t)0x00) -#define S3C_GPIO_PULL_DOWN ((__force s3c_gpio_pull_t)0x01) -#define S3C_GPIO_PULL_UP ((__force s3c_gpio_pull_t)0x02) +#define S3C_GPIO_PULL_NONE ((__force samsung_gpio_pull_t)0x00) +#define S3C_GPIO_PULL_DOWN ((__force samsung_gpio_pull_t)0x01) +#define S3C_GPIO_PULL_UP ((__force samsung_gpio_pull_t)0x02) /** * s3c_gpio_setpull() - set the state of a gpio pin pull resistor @@ -143,7 +143,7 @@ extern int s3c_gpio_cfgpin_range(unsigned int start, unsigned int nr, * * @pull is one of S3C_GPIO_PULL_NONE, S3C_GPIO_PULL_DOWN or S3C_GPIO_PULL_UP. */ -extern int s3c_gpio_setpull(unsigned int pin, s3c_gpio_pull_t pull); +extern int s3c_gpio_setpull(unsigned int pin, samsung_gpio_pull_t pull); /** * s3c_gpio_getpull() - get the pull resistor state of a gpio pin @@ -151,7 +151,7 @@ extern int s3c_gpio_setpull(unsigned int pin, s3c_gpio_pull_t pull); * * Read the pull resistor value for the specified pin. */ -extern s3c_gpio_pull_t s3c_gpio_getpull(unsigned int pin); +extern samsung_gpio_pull_t s3c_gpio_getpull(unsigned int pin); /* configure `all` aspects of an gpio */ @@ -170,7 +170,7 @@ extern s3c_gpio_pull_t s3c_gpio_getpull(unsigned int pin); * @sa s3c_gpio_cfgpin_range */ extern int s3c_gpio_cfgall_range(unsigned int start, unsigned int nr, - unsigned int cfg, s3c_gpio_pull_t pull); + unsigned int cfg, samsung_gpio_pull_t pull); static inline int s3c_gpio_cfgrange_nopull(unsigned int pin, unsigned int size, unsigned int cfg) diff --git a/arch/arm/plat-samsung/include/plat/gpio-core.h b/arch/arm/plat-samsung/include/plat/gpio-core.h index 8cad4cf19c3c..1fe6917f6a2a 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-core.h +++ b/arch/arm/plat-samsung/include/plat/gpio-core.h @@ -25,22 +25,22 @@ * specific code. */ -struct s3c_gpio_chip; +struct samsung_gpio_chip; /** - * struct s3c_gpio_pm - power management (suspend/resume) information + * struct samsung_gpio_pm - power management (suspend/resume) information * @save: Routine to save the state of the GPIO block * @resume: Routine to resume the GPIO block. */ -struct s3c_gpio_pm { - void (*save)(struct s3c_gpio_chip *chip); - void (*resume)(struct s3c_gpio_chip *chip); +struct samsung_gpio_pm { + void (*save)(struct samsung_gpio_chip *chip); + void (*resume)(struct samsung_gpio_chip *chip); }; -struct s3c_gpio_cfg; +struct samsung_gpio_cfg; /** - * struct s3c_gpio_chip - wrapper for specific implementation of gpio + * struct samsung_gpio_chip - wrapper for specific implementation of gpio * @chip: The chip structure to be exported via gpiolib. * @base: The base pointer to the gpio configuration registers. * @group: The group register number for gpio interrupt support. @@ -60,10 +60,10 @@ struct s3c_gpio_cfg; * CPU cores trying to get one lock for different GPIO banks, where each * bank of GPIO has its own register space and configuration registers. */ -struct s3c_gpio_chip { +struct samsung_gpio_chip { struct gpio_chip chip; - struct s3c_gpio_cfg *config; - struct s3c_gpio_pm *pm; + struct samsung_gpio_cfg *config; + struct samsung_gpio_pm *pm; void __iomem *base; int irq_base; int group; @@ -73,58 +73,11 @@ struct s3c_gpio_chip { #endif }; -static inline struct s3c_gpio_chip *to_s3c_gpio(struct gpio_chip *gpc) +static inline struct samsung_gpio_chip *to_samsung_gpio(struct gpio_chip *gpc) { - return container_of(gpc, struct s3c_gpio_chip, chip); + return container_of(gpc, struct samsung_gpio_chip, chip); } -/** s3c_gpiolib_add() - add the s3c specific version of a gpio_chip. - * @chip: The chip to register - * - * This is a wrapper to gpiochip_add() that takes our specific gpio chip - * information and makes the necessary alterations for the platform and - * notes the information for use with the configuration systems and any - * other parts of the system. - */ -extern void s3c_gpiolib_add(struct s3c_gpio_chip *chip); - -/* CONFIG_S3C_GPIO_TRACK enables the tracking of the s3c specific gpios - * for use with the configuration calls, and other parts of the s3c gpiolib - * support code. - * - * Not all s3c support code will need this, as some configurations of cpu - * may only support one or two different configuration options and have an - * easy gpio to s3c_gpio_chip mapping function. If this is the case, then - * the machine support file should provide its own s3c_gpiolib_getchip() - * and any other necessary functions. - */ - -/** - * samsung_gpiolib_add_4bit_chips - 4bit single register GPIO config. - * @chip: The gpio chip that is being configured. - * @nr_chips: The no of chips (gpio ports) for the GPIO being configured. - * - * This helper deal with the GPIO cases where the control register has 4 bits - * of control per GPIO, generally in the form of: - * 0000 = Input - * 0001 = Output - * others = Special functions (dependent on bank) - * - * Note, since the code to deal with the case where there are two control - * registers instead of one, we do not have a separate set of function - * (samsung_gpiolib_add_4bit2_chips)for each case. - */ -extern void samsung_gpiolib_add_4bit_chips(struct s3c_gpio_chip *chip, - int nr_chips); -extern void samsung_gpiolib_add_4bit2_chips(struct s3c_gpio_chip *chip, - int nr_chips); -extern void samsung_gpiolib_add_2bit_chips(struct s3c_gpio_chip *chip, - int nr_chips); - -extern void samsung_gpiolib_add_4bit(struct s3c_gpio_chip *chip); -extern void samsung_gpiolib_add_4bit2(struct s3c_gpio_chip *chip); - - /** * samsung_gpiolib_to_irq - convert gpio pin to irq number * @chip: The gpio chip that the pin belongs to. @@ -136,36 +89,36 @@ extern void samsung_gpiolib_add_4bit2(struct s3c_gpio_chip *chip); extern int samsung_gpiolib_to_irq(struct gpio_chip *chip, unsigned int offset); /* exported for core SoC support to change */ -extern struct s3c_gpio_cfg s3c24xx_gpiocfg_default; +extern struct samsung_gpio_cfg s3c24xx_gpiocfg_default; #ifdef CONFIG_S3C_GPIO_TRACK -extern struct s3c_gpio_chip *s3c_gpios[S3C_GPIO_END]; +extern struct samsung_gpio_chip *s3c_gpios[S3C_GPIO_END]; -static inline struct s3c_gpio_chip *s3c_gpiolib_getchip(unsigned int chip) +static inline struct samsung_gpio_chip *samsung_gpiolib_getchip(unsigned int chip) { return (chip < S3C_GPIO_END) ? s3c_gpios[chip] : NULL; } #else -/* machine specific code should provide s3c_gpiolib_getchip */ +/* machine specific code should provide samsung_gpiolib_getchip */ #include <mach/gpio-track.h> -static inline void s3c_gpiolib_track(struct s3c_gpio_chip *chip) { } +static inline void s3c_gpiolib_track(struct samsung_gpio_chip *chip) { } #endif #ifdef CONFIG_PM -extern struct s3c_gpio_pm s3c_gpio_pm_1bit; -extern struct s3c_gpio_pm s3c_gpio_pm_2bit; -extern struct s3c_gpio_pm s3c_gpio_pm_4bit; +extern struct samsung_gpio_pm samsung_gpio_pm_1bit; +extern struct samsung_gpio_pm samsung_gpio_pm_2bit; +extern struct samsung_gpio_pm samsung_gpio_pm_4bit; #define __gpio_pm(x) x #else -#define s3c_gpio_pm_1bit NULL -#define s3c_gpio_pm_2bit NULL -#define s3c_gpio_pm_4bit NULL +#define samsung_gpio_pm_1bit NULL +#define samsung_gpio_pm_2bit NULL +#define samsung_gpio_pm_4bit NULL #define __gpio_pm(x) NULL #endif /* CONFIG_PM */ /* locking wrappers to deal with multiple access to the same gpio bank */ -#define s3c_gpio_lock(_oc, _fl) spin_lock_irqsave(&(_oc)->lock, _fl) -#define s3c_gpio_unlock(_oc, _fl) spin_unlock_irqrestore(&(_oc)->lock, _fl) +#define samsung_gpio_lock(_oc, _fl) spin_lock_irqsave(&(_oc)->lock, _fl) +#define samsung_gpio_unlock(_oc, _fl) spin_unlock_irqrestore(&(_oc)->lock, _fl) diff --git a/arch/arm/plat-samsung/include/plat/gpio-fns.h b/arch/arm/plat-samsung/include/plat/gpio-fns.h new file mode 100644 index 000000000000..bab139201761 --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/gpio-fns.h @@ -0,0 +1,98 @@ +/* arch/arm/mach-s3c2410/include/mach/gpio-fns.h + * + * Copyright (c) 2003-2009 Simtec Electronics + * Ben Dooks <ben@simtec.co.uk> + * + * S3C2410 - hardware + * + * 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 __MACH_GPIO_FNS_H +#define __MACH_GPIO_FNS_H __FILE__ + +/* These functions are in the to-be-removed category and it is strongly + * encouraged not to use these in new code. They will be marked deprecated + * very soon. + * + * Most of the functionality can be either replaced by the gpiocfg calls + * for the s3c platform or by the generic GPIOlib API. + * + * As of 2.6.35-rc, these will be removed, with the few drivers using them + * either replaced or given a wrapper until the calls can be removed. +*/ + +#include <plat/gpio-cfg.h> + +static inline void s3c2410_gpio_cfgpin(unsigned int pin, unsigned int cfg) +{ + /* 1:1 mapping between cfgpin and setcfg calls at the moment */ + s3c_gpio_cfgpin(pin, cfg); +} + +/* external functions for GPIO support + * + * These allow various different clients to access the same GPIO + * registers without conflicting. If your driver only owns the entire + * GPIO register, then it is safe to ioremap/__raw_{read|write} to it. +*/ + +extern unsigned int s3c2410_gpio_getcfg(unsigned int pin); + +/* s3c2410_gpio_getirq + * + * turn the given pin number into the corresponding IRQ number + * + * returns: + * < 0 = no interrupt for this pin + * >=0 = interrupt number for the pin +*/ + +extern int s3c2410_gpio_getirq(unsigned int pin); + +/* s3c2410_gpio_irqfilter + * + * set the irq filtering on the given pin + * + * on = 0 => disable filtering + * 1 => enable filtering + * + * config = S3C2410_EINTFLT_PCLK or S3C2410_EINTFLT_EXTCLK orred with + * width of filter (0 through 63) + * + * +*/ + +extern int s3c2410_gpio_irqfilter(unsigned int pin, unsigned int on, + unsigned int config); + +/* s3c2410_gpio_pullup + * + * This call should be replaced with s3c_gpio_setpull(). + * + * As a note, there is currently no distinction between pull-up and pull-down + * in the s3c24xx series devices with only an on/off configuration. + */ + +/* s3c2410_gpio_pullup + * + * configure the pull-up control on the given pin + * + * to = 1 => disable the pull-up + * 0 => enable the pull-up + * + * eg; + * + * s3c2410_gpio_pullup(S3C2410_GPB(0), 0); + * s3c2410_gpio_pullup(S3C2410_GPE(8), 0); +*/ + +extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to); + +extern void s3c2410_gpio_setpin(unsigned int pin, unsigned int to); + +extern unsigned int s3c2410_gpio_getpin(unsigned int pin); + +#endif /* __MACH_GPIO_FNS_H */ diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h index f6749916d194..dcf68709f9cf 100644 --- a/arch/arm/plat-samsung/include/plat/pm.h +++ b/arch/arm/plat-samsung/include/plat/pm.h @@ -165,20 +165,20 @@ extern void s3c_pm_check_store(void); extern void s3c_pm_configure_extint(void); /** - * s3c_pm_restore_gpios() - restore the state of the gpios after sleep. + * samsung_pm_restore_gpios() - restore the state of the gpios after sleep. * * Restore the state of the GPIO pins after sleep, which may involve ensuring * that we do not glitch the state of the pins from that the bootloader's * resume code has done. */ -extern void s3c_pm_restore_gpios(void); +extern void samsung_pm_restore_gpios(void); /** - * s3c_pm_save_gpios() - save the state of the GPIOs for restoring after sleep. + * samsung_pm_save_gpios() - save the state of the GPIOs for restoring after sleep. * - * Save the GPIO states for resotration on resume. See s3c_pm_restore_gpios(). + * Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios(). */ -extern void s3c_pm_save_gpios(void); +extern void samsung_pm_save_gpios(void); extern void s3c_pm_save_core(void); extern void s3c_pm_restore_core(void); diff --git a/arch/arm/plat-samsung/pm-gpio.c b/arch/arm/plat-samsung/pm-gpio.c index 96528200eb79..4be016eaa6db 100644 --- a/arch/arm/plat-samsung/pm-gpio.c +++ b/arch/arm/plat-samsung/pm-gpio.c @@ -28,13 +28,13 @@ #define OFFS_DAT (0x04) #define OFFS_UP (0x08) -static void s3c_gpio_pm_1bit_save(struct s3c_gpio_chip *chip) +static void samsung_gpio_pm_1bit_save(struct samsung_gpio_chip *chip) { chip->pm_save[0] = __raw_readl(chip->base + OFFS_CON); chip->pm_save[1] = __raw_readl(chip->base + OFFS_DAT); } -static void s3c_gpio_pm_1bit_resume(struct s3c_gpio_chip *chip) +static void samsung_gpio_pm_1bit_resume(struct samsung_gpio_chip *chip) { void __iomem *base = chip->base; u32 old_gpcon = __raw_readl(base + OFFS_CON); @@ -60,12 +60,12 @@ static void s3c_gpio_pm_1bit_resume(struct s3c_gpio_chip *chip) chip->chip.label, old_gpcon, gps_gpcon, old_gpdat, gps_gpdat); } -struct s3c_gpio_pm s3c_gpio_pm_1bit = { - .save = s3c_gpio_pm_1bit_save, - .resume = s3c_gpio_pm_1bit_resume, +struct samsung_gpio_pm samsung_gpio_pm_1bit = { + .save = samsung_gpio_pm_1bit_save, + .resume = samsung_gpio_pm_1bit_resume, }; -static void s3c_gpio_pm_2bit_save(struct s3c_gpio_chip *chip) +static void samsung_gpio_pm_2bit_save(struct samsung_gpio_chip *chip) { chip->pm_save[0] = __raw_readl(chip->base + OFFS_CON); chip->pm_save[1] = __raw_readl(chip->base + OFFS_DAT); @@ -95,7 +95,7 @@ static inline int is_out(unsigned long con) } /** - * s3c_gpio_pm_2bit_resume() - restore the given GPIO bank + * samsung_gpio_pm_2bit_resume() - restore the given GPIO bank * @chip: The chip information to resume. * * Restore one of the GPIO banks that was saved during suspend. This is @@ -121,7 +121,7 @@ static inline int is_out(unsigned long con) * [1] this assumes that writing to a pin DAT whilst in SFN will set the * state for when it is next output. */ -static void s3c_gpio_pm_2bit_resume(struct s3c_gpio_chip *chip) +static void samsung_gpio_pm_2bit_resume(struct samsung_gpio_chip *chip) { void __iomem *base = chip->base; u32 old_gpcon = __raw_readl(base + OFFS_CON); @@ -187,13 +187,13 @@ static void s3c_gpio_pm_2bit_resume(struct s3c_gpio_chip *chip) chip->chip.label, old_gpcon, gps_gpcon, old_gpdat, gps_gpdat); } -struct s3c_gpio_pm s3c_gpio_pm_2bit = { - .save = s3c_gpio_pm_2bit_save, - .resume = s3c_gpio_pm_2bit_resume, +struct samsung_gpio_pm samsung_gpio_pm_2bit = { + .save = samsung_gpio_pm_2bit_save, + .resume = samsung_gpio_pm_2bit_resume, }; #if defined(CONFIG_ARCH_S3C64XX) || defined(CONFIG_PLAT_S5P) -static void s3c_gpio_pm_4bit_save(struct s3c_gpio_chip *chip) +static void samsung_gpio_pm_4bit_save(struct samsung_gpio_chip *chip) { chip->pm_save[1] = __raw_readl(chip->base + OFFS_CON); chip->pm_save[2] = __raw_readl(chip->base + OFFS_DAT); @@ -203,7 +203,7 @@ static void s3c_gpio_pm_4bit_save(struct s3c_gpio_chip *chip) chip->pm_save[0] = __raw_readl(chip->base - 4); } -static u32 s3c_gpio_pm_4bit_mask(u32 old_gpcon, u32 gps_gpcon) +static u32 samsung_gpio_pm_4bit_mask(u32 old_gpcon, u32 gps_gpcon) { u32 old, new, mask; u32 change_mask = 0x0; @@ -242,14 +242,14 @@ static u32 s3c_gpio_pm_4bit_mask(u32 old_gpcon, u32 gps_gpcon) return change_mask; } -static void s3c_gpio_pm_4bit_con(struct s3c_gpio_chip *chip, int index) +static void samsung_gpio_pm_4bit_con(struct samsung_gpio_chip *chip, int index) { void __iomem *con = chip->base + (index * 4); u32 old_gpcon = __raw_readl(con); u32 gps_gpcon = chip->pm_save[index + 1]; u32 gpcon, mask; - mask = s3c_gpio_pm_4bit_mask(old_gpcon, gps_gpcon); + mask = samsung_gpio_pm_4bit_mask(old_gpcon, gps_gpcon); gpcon = old_gpcon & ~mask; gpcon |= gps_gpcon & mask; @@ -257,7 +257,7 @@ static void s3c_gpio_pm_4bit_con(struct s3c_gpio_chip *chip, int index) __raw_writel(gpcon, con); } -static void s3c_gpio_pm_4bit_resume(struct s3c_gpio_chip *chip) +static void samsung_gpio_pm_4bit_resume(struct samsung_gpio_chip *chip) { void __iomem *base = chip->base; u32 old_gpcon[2]; @@ -269,10 +269,10 @@ static void s3c_gpio_pm_4bit_resume(struct s3c_gpio_chip *chip) old_gpcon[0] = 0; old_gpcon[1] = __raw_readl(base + OFFS_CON); - s3c_gpio_pm_4bit_con(chip, 0); + samsung_gpio_pm_4bit_con(chip, 0); if (chip->chip.ngpio > 8) { old_gpcon[0] = __raw_readl(base - 4); - s3c_gpio_pm_4bit_con(chip, -1); + samsung_gpio_pm_4bit_con(chip, -1); } /* Now change the configurations that require DAT,CON */ @@ -298,19 +298,19 @@ static void s3c_gpio_pm_4bit_resume(struct s3c_gpio_chip *chip) old_gpdat, gps_gpdat); } -struct s3c_gpio_pm s3c_gpio_pm_4bit = { - .save = s3c_gpio_pm_4bit_save, - .resume = s3c_gpio_pm_4bit_resume, +struct samsung_gpio_pm samsung_gpio_pm_4bit = { + .save = samsung_gpio_pm_4bit_save, + .resume = samsung_gpio_pm_4bit_resume, }; #endif /* CONFIG_ARCH_S3C64XX || CONFIG_PLAT_S5P */ /** - * s3c_pm_save_gpio() - save gpio chip data for suspend + * samsung_pm_save_gpio() - save gpio chip data for suspend * @ourchip: The chip for suspend. */ -static void s3c_pm_save_gpio(struct s3c_gpio_chip *ourchip) +static void samsung_pm_save_gpio(struct samsung_gpio_chip *ourchip) { - struct s3c_gpio_pm *pm = ourchip->pm; + struct samsung_gpio_pm *pm = ourchip->pm; if (pm == NULL || pm->save == NULL) S3C_PMDBG("%s: no pm for %s\n", __func__, ourchip->chip.label); @@ -319,24 +319,24 @@ static void s3c_pm_save_gpio(struct s3c_gpio_chip *ourchip) } /** - * s3c_pm_save_gpios() - Save the state of the GPIO banks. + * samsung_pm_save_gpios() - Save the state of the GPIO banks. * * For all the GPIO banks, save the state of each one ready for going * into a suspend mode. */ -void s3c_pm_save_gpios(void) +void samsung_pm_save_gpios(void) { - struct s3c_gpio_chip *ourchip; + struct samsung_gpio_chip *ourchip; unsigned int gpio_nr; for (gpio_nr = 0; gpio_nr < S3C_GPIO_END;) { - ourchip = s3c_gpiolib_getchip(gpio_nr); + ourchip = samsung_gpiolib_getchip(gpio_nr); if (!ourchip) { gpio_nr++; continue; } - s3c_pm_save_gpio(ourchip); + samsung_pm_save_gpio(ourchip); S3C_PMDBG("%s: save %08x,%08x,%08x,%08x\n", ourchip->chip.label, @@ -351,12 +351,12 @@ void s3c_pm_save_gpios(void) } /** - * s3c_pm_resume_gpio() - restore gpio chip data after suspend + * samsung_pm_resume_gpio() - restore gpio chip data after suspend * @ourchip: The suspended chip. */ -static void s3c_pm_resume_gpio(struct s3c_gpio_chip *ourchip) +static void samsung_pm_resume_gpio(struct samsung_gpio_chip *ourchip) { - struct s3c_gpio_pm *pm = ourchip->pm; + struct samsung_gpio_pm *pm = ourchip->pm; if (pm == NULL || pm->resume == NULL) S3C_PMDBG("%s: no pm for %s\n", __func__, ourchip->chip.label); @@ -364,19 +364,19 @@ static void s3c_pm_resume_gpio(struct s3c_gpio_chip *ourchip) pm->resume(ourchip); } -void s3c_pm_restore_gpios(void) +void samsung_pm_restore_gpios(void) { - struct s3c_gpio_chip *ourchip; + struct samsung_gpio_chip *ourchip; unsigned int gpio_nr; for (gpio_nr = 0; gpio_nr < S3C_GPIO_END;) { - ourchip = s3c_gpiolib_getchip(gpio_nr); + ourchip = samsung_gpiolib_getchip(gpio_nr); if (!ourchip) { gpio_nr++; continue; } - s3c_pm_resume_gpio(ourchip); + samsung_pm_resume_gpio(ourchip); gpio_nr += ourchip->chip.ngpio; gpio_nr += CONFIG_S3C_GPIO_SPACE; diff --git a/arch/arm/plat-samsung/pm.c b/arch/arm/plat-samsung/pm.c index ae6f99834cdd..64ab65f0fdbc 100644 --- a/arch/arm/plat-samsung/pm.c +++ b/arch/arm/plat-samsung/pm.c @@ -268,8 +268,8 @@ static int s3c_pm_enter(suspend_state_t state) /* save all necessary core registers not covered by the drivers */ - s3c_pm_save_gpios(); - s3c_pm_saved_gpios(); + samsung_pm_save_gpios(); + samsung_pm_saved_gpios(); s3c_pm_save_uarts(); s3c_pm_save_core(); @@ -306,7 +306,7 @@ static int s3c_pm_enter(suspend_state_t state) s3c_pm_restore_core(); s3c_pm_restore_uarts(); - s3c_pm_restore_gpios(); + samsung_pm_restore_gpios(); s3c_pm_restored_gpios(); s3c_pm_debug_init(); |