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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Driver for Microtune MT2131 "QAM/8VSB single chip tuner"4 *5 * Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>6 */7 8#ifndef __MT2131_H__9#define __MT2131_H__10 11struct dvb_frontend;12struct i2c_adapter;13 14struct mt2131_config {15 u8 i2c_address;16 u8 clock_out; /* 0 = off, 1 = CLK/4, 2 = CLK/2, 3 = CLK/1 */17};18 19#if IS_REACHABLE(CONFIG_MEDIA_TUNER_MT2131)20extern struct dvb_frontend* mt2131_attach(struct dvb_frontend *fe,21 struct i2c_adapter *i2c,22 struct mt2131_config *cfg,23 u16 if1);24#else25static inline struct dvb_frontend* mt2131_attach(struct dvb_frontend *fe,26 struct i2c_adapter *i2c,27 struct mt2131_config *cfg,28 u16 if1)29{30 printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);31 return NULL;32}33#endif /* CONFIG_MEDIA_TUNER_MT2131 */34 35#endif /* __MT2131_H__ */36