diff options
Diffstat (limited to 'arch/arm/mach-s3c/pm-s3c24xx.c')
-rw-r--r-- | arch/arm/mach-s3c/pm-s3c24xx.c | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/arch/arm/mach-s3c/pm-s3c24xx.c b/arch/arm/mach-s3c/pm-s3c24xx.c deleted file mode 100644 index 3a8f5c38882e..000000000000 --- a/arch/arm/mach-s3c/pm-s3c24xx.c +++ /dev/null @@ -1,121 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -// -// Copyright (c) 2004-2006 Simtec Electronics -// Ben Dooks <ben@simtec.co.uk> -// -// S3C24XX Power Manager (Suspend-To-RAM) support -// -// See Documentation/arm/samsung-s3c24xx/suspend.rst for more information -// -// Parts based on arch/arm/mach-pxa/pm.c -// -// Thanks to Dimitry Andric for debugging - -#include <linux/init.h> -#include <linux/suspend.h> -#include <linux/errno.h> -#include <linux/time.h> -#include <linux/gpio.h> -#include <linux/interrupt.h> -#include <linux/serial_core.h> -#include <linux/serial_s3c.h> -#include <linux/io.h> - -#include "regs-clock.h" -#include "regs-gpio.h" -#include "regs-irq.h" -#include "gpio-samsung.h" - -#include <asm/mach/time.h> - -#include "gpio-cfg.h" -#include "pm.h" - -#include "regs-mem-s3c24xx.h" - -#define PFX "s3c24xx-pm: " - -#ifdef CONFIG_PM_SLEEP -static struct sleep_save core_save[] = { - /* we restore the timings here, with the proviso that the board - * brings the system up in an slower, or equal frequency setting - * to the original system. - * - * if we cannot guarantee this, then things are going to go very - * wrong here, as we modify the refresh and both pll settings. - */ - - SAVE_ITEM(S3C2410_BWSCON), - SAVE_ITEM(S3C2410_BANKCON0), - SAVE_ITEM(S3C2410_BANKCON1), - SAVE_ITEM(S3C2410_BANKCON2), - SAVE_ITEM(S3C2410_BANKCON3), - SAVE_ITEM(S3C2410_BANKCON4), - SAVE_ITEM(S3C2410_BANKCON5), -}; -#endif - -/* s3c_pm_check_resume_pin - * - * check to see if the pin is configured correctly for sleep mode, and - * make any necessary adjustments if it is not -*/ - -static void s3c_pm_check_resume_pin(unsigned int pin, unsigned int irqoffs) -{ - unsigned long irqstate; - unsigned long pinstate; - int irq = gpio_to_irq(pin); - - if (irqoffs < 4) - irqstate = s3c_irqwake_intmask & (1L<<irqoffs); - else - irqstate = s3c_irqwake_eintmask & (1L<<irqoffs); - - pinstate = s3c_gpio_getcfg(pin); - - if (!irqstate) { - if (pinstate == S3C2410_GPIO_IRQ) - S3C_PMDBG("Leaving IRQ %d (pin %d) as is\n", irq, pin); - } else { - if (pinstate == S3C2410_GPIO_IRQ) { - S3C_PMDBG("Disabling IRQ %d (pin %d)\n", irq, pin); - s3c_gpio_cfgpin(pin, S3C2410_GPIO_INPUT); - } - } -} - -/* s3c_pm_configure_extint - * - * configure all external interrupt pins -*/ - -void s3c_pm_configure_extint(void) -{ - int pin; - - /* for each of the external interrupts (EINT0..EINT15) we - * need to check whether it is an external interrupt source, - * and then configure it as an input if it is not - */ - - for (pin = S3C2410_GPF(0); pin <= S3C2410_GPF(7); pin++) { - s3c_pm_check_resume_pin(pin, pin - S3C2410_GPF(0)); - } - - for (pin = S3C2410_GPG(0); pin <= S3C2410_GPG(7); pin++) { - s3c_pm_check_resume_pin(pin, (pin - S3C2410_GPG(0))+8); - } -} - -#ifdef CONFIG_PM_SLEEP -void s3c_pm_restore_core(void) -{ - s3c_pm_do_restore_core(core_save, ARRAY_SIZE(core_save)); -} - -void s3c_pm_save_core(void) -{ - s3c_pm_do_save(core_save, ARRAY_SIZE(core_save)); -} -#endif |