![Mauro Carvalho Chehab](/assets/img/avatar_default.png)
Instead of checking everywhere there for 3 symbols, use instead IS_ENABLED macro. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
64 lines
1.7 KiB
C
64 lines
1.7 KiB
C
/*
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* stv6110.h
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*
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* Driver for ST STV6110 satellite tuner IC.
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*
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* Copyright (C) 2009 NetUP Inc.
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* Copyright (C) 2009 Igor M. Liplianin <liplianin@netup.ru>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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*
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __DVB_STV6110_H__
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#define __DVB_STV6110_H__
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#include <linux/kconfig.h>
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#include <linux/i2c.h>
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#include "dvb_frontend.h"
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/* registers */
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#define RSTV6110_CTRL1 0
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#define RSTV6110_CTRL2 1
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#define RSTV6110_TUNING1 2
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#define RSTV6110_TUNING2 3
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#define RSTV6110_CTRL3 4
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#define RSTV6110_STAT1 5
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#define RSTV6110_STAT2 6
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#define RSTV6110_STAT3 7
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struct stv6110_config {
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u8 i2c_address;
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u32 mclk;
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u8 gain;
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u8 clk_div; /* divisor value for the output clock */
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};
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#if IS_ENABLED(CONFIG_DVB_STV6110)
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extern struct dvb_frontend *stv6110_attach(struct dvb_frontend *fe,
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const struct stv6110_config *config,
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struct i2c_adapter *i2c);
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#else
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static inline struct dvb_frontend *stv6110_attach(struct dvb_frontend *fe,
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const struct stv6110_config *config,
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struct i2c_adapter *i2c)
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{
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printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
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return NULL;
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}
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#endif
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#endif
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