1a0c7056fSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-or-later */
29a0bf528SMauro Carvalho Chehab /*
39a0bf528SMauro Carvalho Chehab * isl6421.h - driver for lnb supply and control ic ISL6421
49a0bf528SMauro Carvalho Chehab *
59a0bf528SMauro Carvalho Chehab * Copyright (C) 2006 Andrew de Quincey
69a0bf528SMauro Carvalho Chehab * Copyright (C) 2006 Oliver Endriss
79a0bf528SMauro Carvalho Chehab *
8991ce92fSMauro Carvalho Chehab * the project's page is at https://linuxtv.org
99a0bf528SMauro Carvalho Chehab */
109a0bf528SMauro Carvalho Chehab
119a0bf528SMauro Carvalho Chehab #ifndef _ISL6421_H
129a0bf528SMauro Carvalho Chehab #define _ISL6421_H
139a0bf528SMauro Carvalho Chehab
149a0bf528SMauro Carvalho Chehab #include <linux/dvb/frontend.h>
159a0bf528SMauro Carvalho Chehab
169a0bf528SMauro Carvalho Chehab /* system register bits */
179a0bf528SMauro Carvalho Chehab #define ISL6421_OLF1 0x01
189a0bf528SMauro Carvalho Chehab #define ISL6421_EN1 0x02
199a0bf528SMauro Carvalho Chehab #define ISL6421_VSEL1 0x04
209a0bf528SMauro Carvalho Chehab #define ISL6421_LLC1 0x08
219a0bf528SMauro Carvalho Chehab #define ISL6421_ENT1 0x10
229a0bf528SMauro Carvalho Chehab #define ISL6421_ISEL1 0x20
239a0bf528SMauro Carvalho Chehab #define ISL6421_DCL 0x40
249a0bf528SMauro Carvalho Chehab
259b174527SArnd Bergmann #if IS_REACHABLE(CONFIG_DVB_ISL6421)
269a0bf528SMauro Carvalho Chehab /* override_set and override_clear control which system register bits (above) to always set & clear */
279a0bf528SMauro Carvalho Chehab extern struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
2848a8a03bSMauro Carvalho Chehab u8 override_set, u8 override_clear, bool override_tone);
299a0bf528SMauro Carvalho Chehab #else
isl6421_attach(struct dvb_frontend * fe,struct i2c_adapter * i2c,u8 i2c_addr,u8 override_set,u8 override_clear,bool override_tone)309a0bf528SMauro Carvalho Chehab static inline struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
3148a8a03bSMauro Carvalho Chehab u8 override_set, u8 override_clear, bool override_tone)
329a0bf528SMauro Carvalho Chehab {
339a0bf528SMauro Carvalho Chehab printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
349a0bf528SMauro Carvalho Chehab return NULL;
359a0bf528SMauro Carvalho Chehab }
369a0bf528SMauro Carvalho Chehab #endif // CONFIG_DVB_ISL6421
379a0bf528SMauro Carvalho Chehab
389a0bf528SMauro Carvalho Chehab #endif
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