isl6423.h

 1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3	Intersil ISL6423 SEC and LNB Power supply controller
 4
 5	Copyright (C) Manu Abraham <abraham.manu@gmail.com>
 6
 7*/
 8
 9#ifndef __ISL_6423_H
10#define __ISL_6423_H
11
12#include <linux/dvb/frontend.h>
13
14enum isl6423_current {
15	SEC_CURRENT_275m = 0,
16	SEC_CURRENT_515m,
17	SEC_CURRENT_635m,
18	SEC_CURRENT_800m,
19};
20
21enum isl6423_curlim {
22	SEC_CURRENT_LIM_ON = 1,
23	SEC_CURRENT_LIM_OFF
24};
25
26struct isl6423_config {
27	enum isl6423_current current_max;
28	enum isl6423_curlim curlim;
29	u8 addr;
30	u8 mod_extern;
31};
32
33#if IS_REACHABLE(CONFIG_DVB_ISL6423)
34
35
36extern struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
37					   struct i2c_adapter *i2c,
38					   const struct isl6423_config *config);
39
40#else
41static inline struct dvb_frontend *isl6423_attach(struct dvb_frontend *fe,
42						  struct i2c_adapter *i2c,
43						  const struct isl6423_config *config)
44{
45	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
46	return NULL;
47}
48
49#endif /* CONFIG_DVB_ISL6423 */
50
51#endif /* __ISL_6423_H */