drivers/media/dvb-frontends/lnbh29.h

   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