1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * lnbp22.h - driver for lnb supply and control ic lnbp22 4 * 5 * Copyright (C) 2006 Dominik Kuhlen 6 * Based on lnbp21.h 7 * 8 * the project's page is at https://linuxtv.org 9 */ 10 11 #ifndef _LNBP22_H 12 #define _LNBP22_H 13 14 /* Enable */ 15 #define LNBP22_EN 0x10 16 /* Voltage selection */ 17 #define LNBP22_VSEL 0x02 18 /* Plus 1 Volt Bit */ 19 #define LNBP22_LLC 0x01 20 21 #include <linux/dvb/frontend.h> 22 23 #if IS_REACHABLE(CONFIG_DVB_LNBP22) 24 /* 25 * override_set and override_clear control which system register bits (above) 26 * to always set & clear 27 */ 28 extern struct dvb_frontend *lnbp22_attach(struct dvb_frontend *fe, 29 struct i2c_adapter *i2c); 30 #else 31 static inline struct dvb_frontend *lnbp22_attach(struct dvb_frontend *fe, 32 struct i2c_adapter *i2c) 33 { 34 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 35 return NULL; 36 } 37 #endif /* CONFIG_DVB_LNBP22 */ 38 39 #endif /* _LNBP22_H */ 40