mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 01:41:39 +00:00
![Arnd Bergmann](/assets/img/avatar_default.png)
A lot of header files are only used internally now, so they can be moved to mach-s3c, out of the visibility of drivers. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20200806182059.2431-40-krzk@kernel.org [krzk: Rebase and fixup leds-s3c24xx driver] Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
84 lines
2 KiB
C
84 lines
2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* Copyright 2008 Openmoko, Inc.
|
|
* Copyright 2008 Simtec Electronics
|
|
* Ben Dooks <ben@simtec.co.uk>
|
|
* http://armlinux.simtec.co.uk/
|
|
*
|
|
* S3C64XX - PM core support for arch/arm/plat-s3c/pm.c
|
|
*/
|
|
|
|
#ifndef __MACH_S3C64XX_PM_CORE_H
|
|
#define __MACH_S3C64XX_PM_CORE_H __FILE__
|
|
|
|
#include <linux/serial_s3c.h>
|
|
#include <linux/delay.h>
|
|
|
|
#include "regs-gpio.h"
|
|
#include "regs-clock.h"
|
|
#include "map.h"
|
|
|
|
static inline void s3c_pm_debug_init_uart(void)
|
|
{
|
|
#ifdef CONFIG_SAMSUNG_PM_DEBUG
|
|
u32 tmp = __raw_readl(S3C_PCLK_GATE);
|
|
|
|
/* As a note, since the S3C64XX UARTs generally have multiple
|
|
* clock sources, we simply enable PCLK at the moment and hope
|
|
* that the resume settings for the UART are suitable for the
|
|
* use with PCLK.
|
|
*/
|
|
|
|
tmp |= S3C_CLKCON_PCLK_UART0;
|
|
tmp |= S3C_CLKCON_PCLK_UART1;
|
|
tmp |= S3C_CLKCON_PCLK_UART2;
|
|
tmp |= S3C_CLKCON_PCLK_UART3;
|
|
|
|
__raw_writel(tmp, S3C_PCLK_GATE);
|
|
udelay(10);
|
|
#endif
|
|
}
|
|
|
|
static inline void s3c_pm_arch_prepare_irqs(void)
|
|
{
|
|
/* VIC should have already been taken care of */
|
|
|
|
/* clear any pending EINT0 interrupts */
|
|
__raw_writel(__raw_readl(S3C64XX_EINT0PEND), S3C64XX_EINT0PEND);
|
|
}
|
|
|
|
static inline void s3c_pm_arch_stop_clocks(void)
|
|
{
|
|
}
|
|
|
|
static inline void s3c_pm_arch_show_resume_irqs(void)
|
|
{
|
|
}
|
|
|
|
/* make these defines, we currently do not have any need to change
|
|
* the IRQ wake controls depending on the CPU we are running on */
|
|
#ifdef CONFIG_PM_SLEEP
|
|
#define s3c_irqwake_eintallow ((1 << 28) - 1)
|
|
#define s3c_irqwake_intallow (~0)
|
|
#else
|
|
#define s3c_irqwake_eintallow 0
|
|
#define s3c_irqwake_intallow 0
|
|
#endif
|
|
|
|
static inline void s3c_pm_restored_gpios(void)
|
|
{
|
|
/* ensure sleep mode has been cleared from the system */
|
|
|
|
__raw_writel(0, S3C64XX_SLPEN);
|
|
}
|
|
|
|
static inline void samsung_pm_saved_gpios(void)
|
|
{
|
|
/* turn on the sleep mode and keep it there, as it seems that during
|
|
* suspend the xCON registers get re-set and thus you can end up with
|
|
* problems between going to sleep and resuming.
|
|
*/
|
|
|
|
__raw_writel(S3C64XX_SLPEN_USE_xSLP, S3C64XX_SLPEN);
|
|
}
|
|
#endif /* __MACH_S3C64XX_PM_CORE_H */
|