linux/drivers/soc/samsung/exynos-pmu.h
Pankaj Dubey bfce552d0b drivers: soc: Add support for Exynos PMU driver
This patch moves Exynos PMU driver implementation from "arm/mach-exynos"
to "drivers/soc/samsung". This driver is mainly used for setting misc
bits of register from PMU IP of Exynos SoC which will be required to
configure before Suspend/Resume. Currently all these settings are done
in "arch/arm/mach-exynos/pmu.c" but moving ahead for ARM64 based SoC
support, there is a need of this PMU driver in driver/* folder.

This driver uses existing DT binding information and there should
be no functionality change in the supported platforms.

Signed-off-by: Amit Daniel Kachhap <amitdanielk@gmail.com>
[tested on Peach-Pi (Exynos5880)]
Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[for testing on Trats2 (Exynos4412) and Odroid XU3 (Exynos5422)]
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
[k.kozlowski: Rebased, add necessary infrastructure for building and
selecting drivers/soc because original patchset was on top of movement
SROMc to drivers/soc]
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-02-25 10:18:07 +09:00

45 lines
1.3 KiB
C

/*
* Copyright (c) 2015 Samsung Electronics Co., Ltd.
* http://www.samsung.com
*
* Header for EXYNOS PMU Driver support
*
* 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 __EXYNOS_PMU_H
#define __EXYNOS_PMU_H
#include <linux/io.h>
#define PMU_TABLE_END (-1U)
struct exynos_pmu_conf {
unsigned int offset;
u8 val[NUM_SYS_POWERDOWN];
};
struct exynos_pmu_data {
const struct exynos_pmu_conf *pmu_config;
const struct exynos_pmu_conf *pmu_config_extra;
void (*pmu_init)(void);
void (*powerdown_conf)(enum sys_powerdown);
void (*powerdown_conf_extra)(enum sys_powerdown);
};
extern void __iomem *pmu_base_addr;
/* list of all exported SoC specific data */
extern const struct exynos_pmu_data exynos3250_pmu_data;
extern const struct exynos_pmu_data exynos4210_pmu_data;
extern const struct exynos_pmu_data exynos4212_pmu_data;
extern const struct exynos_pmu_data exynos4412_pmu_data;
extern const struct exynos_pmu_data exynos5250_pmu_data;
extern const struct exynos_pmu_data exynos5420_pmu_data;
extern void pmu_raw_writel(u32 val, u32 offset);
extern u32 pmu_raw_readl(u32 offset);
#endif /* __EXYNOS_PMU_H */