xref: /openbmc/linux/drivers/gpu/drm/meson/meson_vclk.h (revision 82e6fdd6)
1 /*
2  * Copyright (C) 2016 BayLibre, SAS
3  * Author: Neil Armstrong <narmstrong@baylibre.com>
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License as
7  * published by the Free Software Foundation; either version 2 of the
8  * License, or (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful, but
11  * WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 /* Video Clock */
20 
21 #ifndef __MESON_VCLK_H
22 #define __MESON_VCLK_H
23 
24 enum {
25 	MESON_VCLK_TARGET_CVBS = 0,
26 	MESON_VCLK_TARGET_HDMI = 1,
27 };
28 
29 /* 27MHz is the CVBS Pixel Clock */
30 #define MESON_VCLK_CVBS			27000
31 
32 void meson_vclk_setup(struct meson_drm *priv, unsigned int target,
33 		      unsigned int vclk_freq, unsigned int venc_freq,
34 		      unsigned int dac_freq, bool hdmi_use_enci);
35 
36 #endif /* __MESON_VCLK_H */
37