OpenCloudOS-Kernel/drivers/gpu/drm/meson/meson_vclk.h

41 lines
1.2 KiB
C

/*
* Copyright (C) 2016 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@baylibre.com>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
/* Video Clock */
#ifndef __MESON_VCLK_H
#define __MESON_VCLK_H
enum {
MESON_VCLK_TARGET_CVBS = 0,
MESON_VCLK_TARGET_HDMI = 1,
MESON_VCLK_TARGET_DMT = 2,
};
/* 27MHz is the CVBS Pixel Clock */
#define MESON_VCLK_CVBS 27000
enum drm_mode_status
meson_vclk_dmt_supported_freq(struct meson_drm *priv, unsigned int freq);
void meson_vclk_setup(struct meson_drm *priv, unsigned int target,
unsigned int vclk_freq, unsigned int venc_freq,
unsigned int dac_freq, bool hdmi_use_enci);
#endif /* __MESON_VCLK_H */