linux/drivers/tty/serial/8250/8250_em.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Renesas Emma Mobile 8250 driver
 *
 *  Copyright (C) 2012 Magnus Damm
 */

#include <linux/device.h>
#include <linux/io.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/serial_8250.h>
#include <linux/serial_reg.h>
#include <linux/platform_device.h>
#include <linux/clk.h>

#include "8250.h"

#define UART_DLL_EM …
#define UART_DLM_EM …
#define UART_HCR0_EM …

/*
 * A high value for UART_FCR_EM avoids overlapping with existing UART_*
 * register defines. UART_FCR_EM_HW is the real HW register offset.
 */
#define UART_FCR_EM …
#define UART_FCR_EM_HW …

#define UART_HCR0_EM_SW_RESET …

struct serial8250_em_priv { … };

static void serial8250_em_serial_out_helper(struct uart_port *p, int offset,
					    int value)
{ … }

static unsigned int serial8250_em_serial_in(struct uart_port *p, int offset)
{ … }

static void serial8250_em_reg_update(struct uart_port *p, int off, int value)
{ … }

static void serial8250_em_serial_out(struct uart_port *p, int offset, int value)
{ … }

static u32 serial8250_em_serial_dl_read(struct uart_8250_port *up)
{ … }

static void serial8250_em_serial_dl_write(struct uart_8250_port *up, u32 value)
{ … }

static int serial8250_em_probe(struct platform_device *pdev)
{ … }

static void serial8250_em_remove(struct platform_device *pdev)
{ … }

static const struct of_device_id serial8250_em_dt_ids[] = …;
MODULE_DEVICE_TABLE(of, serial8250_em_dt_ids);

static struct platform_driver serial8250_em_platform_driver = …;

module_platform_driver(…) …;

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