xref: /openbmc/linux/include/linux/usb/isp1362.h (revision b2441318)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3  * board initialization code should put one of these into dev->platform_data
4  * and place the isp1362 onto platform_bus.
5  */
6 
7 #ifndef __LINUX_USB_ISP1362_H__
8 #define __LINUX_USB_ISP1362_H__
9 
10 struct isp1362_platform_data {
11 	/* Enable internal pulldown resistors on downstream ports */
12 	unsigned sel15Kres:1;
13 	/* Clock cannot be stopped */
14 	unsigned clknotstop:1;
15 	/* On-chip overcurrent protection */
16 	unsigned oc_enable:1;
17 	/* INT output polarity */
18 	unsigned int_act_high:1;
19 	/* INT edge or level triggered */
20 	unsigned int_edge_triggered:1;
21 	/* DREQ output polarity */
22 	unsigned dreq_act_high:1;
23 	/* DACK input polarity */
24 	unsigned dack_act_high:1;
25 	/* chip can be resumed via H_WAKEUP pin */
26 	unsigned remote_wakeup_connected:1;
27 	/* Switch or not to switch (keep always powered) */
28 	unsigned no_power_switching:1;
29 	/* Ganged port power switching (0) or individual port power switching (1) */
30 	unsigned power_switching_mode:1;
31 	/* Given port_power, msec/2 after power on till power good */
32 	u8 potpg;
33 	/* Hardware reset set/clear */
34 	void (*reset) (struct device *dev, int set);
35 	/* Clock start/stop */
36 	void (*clock) (struct device *dev, int start);
37 	/* Inter-io delay (ns). The chip is picky about access timings; it
38 	 * expects at least:
39 	 * 110ns delay between consecutive accesses to DATA_REG,
40 	 * 300ns delay between access to ADDR_REG and DATA_REG (registers)
41 	 * 462ns delay between access to ADDR_REG and DATA_REG (buffer memory)
42 	 * WE MUST NOT be activated during these intervals (even without CS!)
43 	 */
44 	void (*delay) (struct device *dev, unsigned int delay);
45 };
46 
47 #endif
48