linux/drivers/mfd/intel_quark_i2c_gpio.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Intel Quark MFD PCI driver for I2C & GPIO
 *
 * Copyright(c) 2014 Intel Corporation.
 *
 * Intel Quark PCI device for I2C and GPIO controller sharing the same
 * PCI function. This PCI driver will split the 2 devices into their
 * respective drivers.
 */

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pci.h>
#include <linux/mfd/core.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/dmi.h>
#include <linux/i2c.h>
#include <linux/property.h>

/* PCI BAR for register base address */
#define MFD_I2C_BAR …
#define MFD_GPIO_BAR …

/* ACPI _ADR value to match the child node */
#define MFD_ACPI_MATCH_GPIO …
#define MFD_ACPI_MATCH_I2C …

#define INTEL_QUARK_IORES_MEM …
#define INTEL_QUARK_IORES_IRQ …

#define INTEL_QUARK_I2C_CONTROLLER_CLK …

/* The Quark I2C controller source clock */
#define INTEL_QUARK_I2C_CLK_HZ …

struct intel_quark_mfd { … };

static const struct property_entry intel_quark_i2c_controller_standard_properties[] = …;

static const struct software_node intel_quark_i2c_controller_standard_node = …;

static const struct property_entry intel_quark_i2c_controller_fast_properties[] = …;

static const struct software_node intel_quark_i2c_controller_fast_node = …;

static const struct dmi_system_id dmi_platform_info[] = …;

/* This is used as a place holder and will be modified at run-time */
static struct resource intel_quark_i2c_res[] = …;

static struct mfd_cell_acpi_match intel_quark_acpi_match_i2c = …;

/* This is used as a place holder and will be modified at run-time */
static struct resource intel_quark_gpio_res[] = …;

static struct mfd_cell_acpi_match intel_quark_acpi_match_gpio = …;

static const struct software_node intel_quark_gpio_controller_node = …;

static const struct property_entry intel_quark_gpio_portA_properties[] = …;

static const struct software_node intel_quark_gpio_portA_node = …;

static const struct software_node *intel_quark_gpio_node_group[] = …;

static struct mfd_cell intel_quark_mfd_cells[] = …;

static const struct pci_device_id intel_quark_mfd_ids[] = …;
MODULE_DEVICE_TABLE(pci, intel_quark_mfd_ids);

static int intel_quark_register_i2c_clk(struct device *dev)
{ … }

static void intel_quark_unregister_i2c_clk(struct device *dev)
{ … }

static int intel_quark_i2c_setup(struct pci_dev *pdev)
{ … }

static int intel_quark_gpio_setup(struct pci_dev *pdev)
{ … }

static int intel_quark_mfd_probe(struct pci_dev *pdev,
				 const struct pci_device_id *id)
{ … }

static void intel_quark_mfd_remove(struct pci_dev *pdev)
{ … }

static struct pci_driver intel_quark_mfd_driver = …;

module_pci_driver(…) …;

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;