mirror of
https://github.com/torvalds/linux.git
synced 2024-11-05 11:32:04 +00:00
7ccbc60cd9
Some GPIO EINT control registers needs to be preserved across suspend/resume cycle. This patch extends the driver to take care of this. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
|
|
* Exynos specific definitions for Samsung pinctrl and gpiolib driver.
|
|
*
|
|
* Copyright (c) 2012 Samsung Electronics Co., Ltd.
|
|
* http://www.samsung.com
|
|
* Copyright (c) 2012 Linaro Ltd
|
|
* http://www.linaro.org
|
|
*
|
|
* This file contains the Exynos specific definitions for the Samsung
|
|
* pinctrl/gpiolib interface drivers.
|
|
*
|
|
* Author: Thomas Abraham <thomas.ab@samsung.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*/
|
|
|
|
/* External GPIO and wakeup interrupt related definitions */
|
|
#define EXYNOS_GPIO_ECON_OFFSET 0x700
|
|
#define EXYNOS_GPIO_EFLTCON_OFFSET 0x800
|
|
#define EXYNOS_GPIO_EMASK_OFFSET 0x900
|
|
#define EXYNOS_GPIO_EPEND_OFFSET 0xA00
|
|
#define EXYNOS_WKUP_ECON_OFFSET 0xE00
|
|
#define EXYNOS_WKUP_EMASK_OFFSET 0xF00
|
|
#define EXYNOS_WKUP_EPEND_OFFSET 0xF40
|
|
#define EXYNOS_SVC_OFFSET 0xB08
|
|
#define EXYNOS_EINT_FUNC 0xF
|
|
|
|
/* helpers to access interrupt service register */
|
|
#define EXYNOS_SVC_GROUP_SHIFT 3
|
|
#define EXYNOS_SVC_GROUP_MASK 0x1f
|
|
#define EXYNOS_SVC_NUM_MASK 7
|
|
#define EXYNOS_SVC_GROUP(x) ((x >> EXYNOS_SVC_GROUP_SHIFT) & \
|
|
EXYNOS_SVC_GROUP_MASK)
|
|
|
|
/* Exynos specific external interrupt trigger types */
|
|
#define EXYNOS_EINT_LEVEL_LOW 0
|
|
#define EXYNOS_EINT_LEVEL_HIGH 1
|
|
#define EXYNOS_EINT_EDGE_FALLING 2
|
|
#define EXYNOS_EINT_EDGE_RISING 3
|
|
#define EXYNOS_EINT_EDGE_BOTH 4
|
|
#define EXYNOS_EINT_CON_MASK 0xF
|
|
#define EXYNOS_EINT_CON_LEN 4
|
|
|
|
#define EXYNOS_EINT_MAX_PER_BANK 8
|
|
#define EXYNOS_EINT_NR_WKUP_EINT
|
|
|
|
#define EXYNOS_PIN_BANK_EINTN(pins, reg, id) \
|
|
{ \
|
|
.type = &bank_type_off, \
|
|
.pctl_offset = reg, \
|
|
.nr_pins = pins, \
|
|
.eint_type = EINT_TYPE_NONE, \
|
|
.name = id \
|
|
}
|
|
|
|
#define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs) \
|
|
{ \
|
|
.type = &bank_type_off, \
|
|
.pctl_offset = reg, \
|
|
.nr_pins = pins, \
|
|
.eint_type = EINT_TYPE_GPIO, \
|
|
.eint_offset = offs, \
|
|
.name = id \
|
|
}
|
|
|
|
#define EXYNOS_PIN_BANK_EINTW(pins, reg, id, offs) \
|
|
{ \
|
|
.type = &bank_type_alive, \
|
|
.pctl_offset = reg, \
|
|
.nr_pins = pins, \
|
|
.eint_type = EINT_TYPE_WKUP, \
|
|
.eint_offset = offs, \
|
|
.name = id \
|
|
}
|
|
|
|
/**
|
|
* struct exynos_weint_data: irq specific data for all the wakeup interrupts
|
|
* generated by the external wakeup interrupt controller.
|
|
* @irq: interrupt number within the domain.
|
|
* @bank: bank responsible for this interrupt
|
|
*/
|
|
struct exynos_weint_data {
|
|
unsigned int irq;
|
|
struct samsung_pin_bank *bank;
|
|
};
|
|
|
|
/**
|
|
* struct exynos_muxed_weint_data: irq specific data for muxed wakeup interrupts
|
|
* generated by the external wakeup interrupt controller.
|
|
* @nr_banks: count of banks being part of the mux
|
|
* @banks: array of banks being part of the mux
|
|
*/
|
|
struct exynos_muxed_weint_data {
|
|
unsigned int nr_banks;
|
|
struct samsung_pin_bank *banks[];
|
|
};
|