LXR linux/drivers/gpu/drm/meson/meson

   1/* SPDX-License-Identifier: GPL-2.0-or-later */
   2/*
   3 * Copyright (C) 2016 BayLibre, SAS
   4 * Author: Neil Armstrong <narmstrong@baylibre.com>
   5 */
   6
   7/* Video Clock */
   8
   9#ifndef __MESON_VCLK_H
  10#define __MESON_VCLK_H
  11
  12#include <drm/drm_modes.h>
  13
  14struct meson_drm;
  15
  16enum {
  17        MESON_VCLK_TARGET_CVBS = 0,
  18        MESON_VCLK_TARGET_HDMI = 1,
  19        MESON_VCLK_TARGET_DMT = 2,
  20};
  21
  22/* 27MHz is the CVBS Pixel Clock */
  23#define MESON_VCLK_CVBS                 27000
  24
  25enum drm_mode_status
  26meson_vclk_dmt_supported_freq(struct meson_drm *priv, unsigned int freq);
  27enum drm_mode_status
  28meson_vclk_vic_supported_freq(struct meson_drm *priv, unsigned int phy_freq,
  29                              unsigned int vclk_freq);
  30
  31void meson_vclk_setup(struct meson_drm *priv, unsigned int target,
  32                      unsigned int phy_freq, unsigned int vclk_freq,
  33                      unsigned int venc_freq, unsigned int dac_freq,
  34                      bool hdmi_use_enci);
  35
  36#endif /* __MESON_VCLK_H */
  37