linux-stable/drivers/media/dvb-frontends/a8293.h
Mauro Carvalho Chehab 782d8b743a [media] dvb-frontends: use IS_ENABLED
Instead of checking everywhere there for 3 symbols, use instead
IS_ENABLED macro.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-23 09:03:59 -03:00

42 lines
1.3 KiB
C

/*
* Allegro A8293 SEC driver
*
* Copyright (C) 2011 Antti Palosaari <crope@iki.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef A8293_H
#define A8293_H
#include <linux/kconfig.h>
struct a8293_config {
u8 i2c_addr;
};
#if IS_ENABLED(CONFIG_DVB_A8293)
extern struct dvb_frontend *a8293_attach(struct dvb_frontend *fe,
struct i2c_adapter *i2c, const struct a8293_config *cfg);
#else
static inline struct dvb_frontend *a8293_attach(struct dvb_frontend *fe,
struct i2c_adapter *i2c, const struct a8293_config *cfg)
{
printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
return NULL;
}
#endif
#endif /* A8293_H */