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