1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  *
4  *  Copyright (C) 2007 Christian Pellegrin
5  */
6 
7 
8 #ifndef _LINUX_SERIAL_MAX3100_H
9 #define _LINUX_SERIAL_MAX3100_H 1
10 
11 
12 /**
13  * struct plat_max3100 - MAX3100 SPI UART platform data
14  * @loopback:            force MAX3100 in loopback
15  * @crystal:             1 for 3.6864 Mhz, 0 for 1.8432
16  * @max3100_hw_suspend:  MAX3100 has a shutdown pin. This is a hook
17  *                       called on suspend and resume to activate it.
18  * @poll_time:           poll time for CTS signal in ms, 0 disables (so no hw
19  *                       flow ctrl is possible but you have less CPU usage)
20  *
21  * You should use this structure in your machine description to specify
22  * how the MAX3100 is connected. Example:
23  *
24  * static struct plat_max3100 max3100_plat_data = {
25  *  .loopback = 0,
26  *  .crystal = 0,
27  *  .poll_time = 100,
28  * };
29  *
30  * static struct spi_board_info spi_board_info[] = {
31  * {
32  *  .modalias	= "max3100",
33  *  .platform_data	= &max3100_plat_data,
34  *  .irq		= IRQ_EINT12,
35  *  .max_speed_hz	= 5*1000*1000,
36  *  .chip_select	= 0,
37  * },
38  * };
39  *
40  **/
41 struct plat_max3100 {
42 	int loopback;
43 	int crystal;
44 	void (*max3100_hw_suspend) (int suspend);
45 	int poll_time;
46 };
47 
48 #endif
49