path: root/drivers/pinctrl/qcom/pinctrl-msm.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Copyright (c) 2013, Sony Mobile Communications AB.
 * Copyright (c) 2013, The Linux Foundation. All rights reserved.
 */

#include <linux/delay.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pinctrl/machine.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinmux.h>
#include <linux/pinctrl/pinconf.h>
#include <linux/pinctrl/pinconf-generic.h>
#include <linux/slab.h>
#include <linux/gpio/driver.h>
#include <linux/interrupt.h>
#include <linux/spinlock.h>
#include <linux/reboot.h>
#include <linux/pm.h>
#include <linux/log2.h>
#include <linux/qcom_scm.h>

#include <linux/soc/qcom/irq.h>

#include "../core.h"
#include "../pinconf.h"
#include "pinctrl-msm.h"
#include "../pinctrl-utils.h"

#define MAX_NR_GPIO 300
#define MAX_NR_TILES 4
#define PS_HOLD_OFFSET 0x820

/**
 * struct msm_pinctrl - state for a pinctrl-msm device
 * @dev:            device handle.
 * @pctrl:          pinctrl handle.
 * @chip:           gpiochip handle.
 * @desc:           pin controller descriptor
 * @restart_nb:     restart notifier block.
 * @irq_chip:       irq chip information
 * @irq:            parent irq for the TLMM irq_chip.
 * @intr_target_use_scm: route irq to application cpu using scm calls
 * @lock:           Spinlock to protect register resources as well
 *                  as msm_pinctrl data structures.
 * @enabled_irqs:   Bitmap of currently enabled irqs.
 * @dual_edge_irqs: Bitmap of irqs that need sw emulated dual edge
 *                  detection.
 * @skip_wake_irqs: Skip IRQs that are handled by wakeup interrupt controller
 * @disabled_for_mux: These IRQs were disabled because we muxed away.
 * @soc:            Reference to soc_data of platform specific data.
 * @regs:           Base addresses for the TLMM tiles.
 * @phys_base:      Physical base address
 */
struct msm_pinctrl {
	struct device *dev;
	struct pinctrl_dev *pctrl;
	struct gpio_chip chip;
	struct pinctrl_desc desc;
	struct notifier_block restart_nb