7b34be71db
This patch introduces the use of IS_ENABLED() macro. For example, replacing: #if defined(CONFIG_I2C) || (defined(CONFIG_I2C_MODULE) && defined(MODULE)) with: #if IS_ENABLED(CONFIG_I2C) All changes made by this patch respect the same replacement pattern. Reported-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Acked-by: Antti Palosaari <crope@iki.fi> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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cx24110 - Single Chip Satellite Channel Receiver driver module
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Copyright (C) 2002 Peter Hettkamp <peter.hettkamp@htp-tel.de> based on
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work
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Copyright (C) 1999 Convergence Integrated Media GmbH <ralph@convergence.de>
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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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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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GNU General Public License for more details.
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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 CX24110_H
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#define CX24110_H
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#include <linux/dvb/frontend.h>
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struct cx24110_config
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{
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/* the demodulator's i2c address */
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u8 demod_address;
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};
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static inline int cx24110_pll_write(struct dvb_frontend *fe, u32 val)
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{
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u8 buf[] = {
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(u8)((val >> 24) & 0xff),
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(u8)((val >> 16) & 0xff),
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(u8)((val >> 8) & 0xff)
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};
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if (fe->ops.write)
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return fe->ops.write(fe, buf, 3);
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return 0;
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}
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#if IS_ENABLED(CONFIG_DVB_CX24110)
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extern struct dvb_frontend* cx24110_attach(const struct cx24110_config* config,
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struct i2c_adapter* i2c);
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#else
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static inline struct dvb_frontend* cx24110_attach(const struct cx24110_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 // CONFIG_DVB_CX24110
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#endif // CX24110_H
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