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