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GPF1..5 banks in Exynos5433 are located in two pinctrl devices: ALIVE and IMEM. Although they are partially located in ALIVE section, the state of their registers in IMEM section is lost after suspend/resume cycle. To properly handle such case, those banks have to be defined with standard 'exynos5433_bank_type_off' type (with PINCFG_TYPE_CON_PDN and PINCFG_TYPE_PUD_PDN register offsets). This automatically instructs the generic Samsung pinctrl suspend/resume code to save and restore state of those registers. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
142 lines
4.1 KiB
C
142 lines
4.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Exynos specific definitions for Samsung pinctrl and gpiolib driver.
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*
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* Copyright (c) 2012 Samsung Electronics Co., Ltd.
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* http://www.samsung.com
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* Copyright (c) 2012 Linaro Ltd
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* http://www.linaro.org
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*
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* This file contains the Exynos specific definitions for the Samsung
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* pinctrl/gpiolib interface drivers.
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*
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* Author: Thomas Abraham <thomas.ab@samsung.com>
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*/
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#ifndef __PINCTRL_SAMSUNG_EXYNOS_H
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#define __PINCTRL_SAMSUNG_EXYNOS_H
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/* External GPIO and wakeup interrupt related definitions */
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#define EXYNOS_GPIO_ECON_OFFSET 0x700
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#define EXYNOS_GPIO_EFLTCON_OFFSET 0x800
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#define EXYNOS_GPIO_EMASK_OFFSET 0x900
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#define EXYNOS_GPIO_EPEND_OFFSET 0xA00
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#define EXYNOS_WKUP_ECON_OFFSET 0xE00
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#define EXYNOS_WKUP_EMASK_OFFSET 0xF00
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#define EXYNOS_WKUP_EPEND_OFFSET 0xF40
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#define EXYNOS7_WKUP_ECON_OFFSET 0x700
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#define EXYNOS7_WKUP_EMASK_OFFSET 0x900
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#define EXYNOS7_WKUP_EPEND_OFFSET 0xA00
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#define EXYNOS_SVC_OFFSET 0xB08
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/* helpers to access interrupt service register */
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#define EXYNOS_SVC_GROUP_SHIFT 3
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#define EXYNOS_SVC_GROUP_MASK 0x1f
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#define EXYNOS_SVC_NUM_MASK 7
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#define EXYNOS_SVC_GROUP(x) ((x >> EXYNOS_SVC_GROUP_SHIFT) & \
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EXYNOS_SVC_GROUP_MASK)
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/* Exynos specific external interrupt trigger types */
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#define EXYNOS_EINT_LEVEL_LOW 0
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#define EXYNOS_EINT_LEVEL_HIGH 1
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#define EXYNOS_EINT_EDGE_FALLING 2
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#define EXYNOS_EINT_EDGE_RISING 3
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#define EXYNOS_EINT_EDGE_BOTH 4
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#define EXYNOS_EINT_CON_MASK 0xF
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#define EXYNOS_EINT_CON_LEN 4
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#define EXYNOS_EINT_MAX_PER_BANK 8
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#define EXYNOS_EINT_NR_WKUP_EINT
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#define EXYNOS_PIN_BANK_EINTN(pins, reg, id) \
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{ \
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.type = &bank_type_off, \
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.pctl_offset = reg, \
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.nr_pins = pins, \
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.eint_type = EINT_TYPE_NONE, \
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.name = id \
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}
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#define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs) \
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{ \
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.type = &bank_type_off, \
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.pctl_offset = reg, \
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.nr_pins = pins, \
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.eint_type = EINT_TYPE_GPIO, \
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.eint_offset = offs, \
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.name = id \
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}
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#define EXYNOS_PIN_BANK_EINTW(pins, reg, id, offs) \
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{ \
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.type = &bank_type_alive, \
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.pctl_offset = reg, \
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.nr_pins = pins, \
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.eint_type = EINT_TYPE_WKUP, \
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.eint_offset = offs, \
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.name = id \
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}
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#define EXYNOS5433_PIN_BANK_EINTG(pins, reg, id, offs) \
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{ \
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.type = &exynos5433_bank_type_off, \
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.pctl_offset = reg, \
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.nr_pins = pins, \
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.eint_type = EINT_TYPE_GPIO, \
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.eint_offset = offs, \
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.name = id \
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}
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#define EXYNOS5433_PIN_BANK_EINTW(pins, reg, id, offs) \
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{ \
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.type = &exynos5433_bank_type_alive, \
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.pctl_offset = reg, \
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.nr_pins = pins, \
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.eint_type = EINT_TYPE_WKUP, \
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.eint_offset = offs, \
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.name = id \
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}
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#define EXYNOS5433_PIN_BANK_EINTW_EXT(pins, reg, id, offs, pctl_idx) \
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{ \
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.type = &exynos5433_bank_type_off, \
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.pctl_offset = reg, \
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.nr_pins = pins, \
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.eint_type = EINT_TYPE_WKUP, \
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.eint_offset = offs, \
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.name = id, \
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.pctl_res_idx = pctl_idx, \
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} \
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/**
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* struct exynos_weint_data: irq specific data for all the wakeup interrupts
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* generated by the external wakeup interrupt controller.
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* @irq: interrupt number within the domain.
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* @bank: bank responsible for this interrupt
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*/
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struct exynos_weint_data {
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unsigned int irq;
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struct samsung_pin_bank *bank;
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};
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/**
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* struct exynos_muxed_weint_data: irq specific data for muxed wakeup interrupts
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* generated by the external wakeup interrupt controller.
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* @nr_banks: count of banks being part of the mux
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* @banks: array of banks being part of the mux
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*/
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struct exynos_muxed_weint_data {
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unsigned int nr_banks;
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struct samsung_pin_bank *banks[];
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};
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int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d);
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int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d);
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void exynos_pinctrl_suspend(struct samsung_pinctrl_drv_data *drvdata);
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void exynos_pinctrl_resume(struct samsung_pinctrl_drv_data *drvdata);
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struct samsung_retention_ctrl *
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exynos_retention_init(struct samsung_pinctrl_drv_data *drvdata,
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const struct samsung_retention_data *data);
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#endif /* __PINCTRL_SAMSUNG_EXYNOS_H */
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