1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Driver for LNB supply and control IC STMicroelectronics LNBH29 4 * 5 * Copyright (c) 2018 Socionext Inc. 6 */ 7 8 #ifndef LNBH29_H 9 #define LNBH29_H 10 11 #include <linux/i2c.h> 12 #include <linux/dvb/frontend.h> 13 14 /* Using very low E.S.R. capacitors or ceramic caps */ 15 #define LNBH29_DATA_COMP BIT(3) 16 17 struct lnbh29_config { 18 u8 i2c_address; 19 u8 data_config; 20 }; 21 22 #if IS_REACHABLE(CONFIG_DVB_LNBH29) 23 struct dvb_frontend *lnbh29_attach(struct dvb_frontend *fe, 24 struct lnbh29_config *cfg, 25 struct i2c_adapter *i2c); 26 #else 27 static inline struct dvb_frontend *lnbh29_attach(struct dvb_frontend *fe, 28 struct lnbh29_config *cfg, 29 struct i2c_adapter *i2c) 30 { 31 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__); 32 return NULL; 33 } 34 #endif 35 36 #endif 37