git.openwrt.org Git - openwrt/staging/blogic.git/blob

   1 From 9f4f8d9e78dc7fbffba47dea9beb8cadd60fbc8c Mon Sep 17 00:00:00 2001
   2 From: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
   3 Date: Thu, 15 Jul 2021 01:08:11 +0200
   4 Subject: [PATCH] drm/vc4: Make VEC progressive modes readily
   5  accessible
   6
   7 Add predefined modelines for the 240p (NTSC) and 288p (PAL) progressive
   8 modes, and report them through vc4_vec_connector_get_modes().
   9
  10 Signed-off-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
  11 ---
  12  drivers/gpu/drm/vc4/vc4_vec.c | 73 ++++++++++++++++++++++++++---------
  13  1 file changed, 55 insertions(+), 18 deletions(-)
  14
  15 --- a/drivers/gpu/drm/vc4/vc4_vec.c
  16 +++ b/drivers/gpu/drm/vc4/vc4_vec.c
  17 @@ -245,7 +245,8 @@ enum vc4_vec_tv_mode_id {
  18  };
  19
  20  struct vc4_vec_tv_mode {
  21 -       const struct drm_display_mode *mode;
  22 +       const struct drm_display_mode *interlaced_mode;
  23 +       const struct drm_display_mode *progressive_mode;
  24         u32 config0;
  25         u32 config1;
  26         u32 custom_freq;
  27 @@ -279,61 +280,81 @@ static const struct debugfs_reg32 vec_re
  28  };
  29
  30  static const struct drm_display_mode drm_mode_480i = {
  31 -       DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 13500,
  32 +       DRM_MODE("720x480i", DRM_MODE_TYPE_DRIVER, 13500,
  33                  720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
  34                  480, 480 + 7, 480 + 7 + 6, 525, 0,
  35                  DRM_MODE_FLAG_INTERLACE)
  36  };
  37
  38 +static const struct drm_display_mode drm_mode_240p = {
  39 +       DRM_MODE("720x240", DRM_MODE_TYPE_DRIVER, 13500,
  40 +                720, 720 + 14, 720 + 14 + 64, 720 + 14 + 64 + 60, 0,
  41 +                240, 240 + 3, 240 + 3 + 3, 262, 0, 0)
  42 +};
  43 +
  44  static const struct drm_display_mode drm_mode_576i = {
  45 -       DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 13500,
  46 +       DRM_MODE("720x576i", DRM_MODE_TYPE_DRIVER, 13500,
  47                  720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
  48                  576, 576 + 4, 576 + 4 + 6, 625, 0,
  49                  DRM_MODE_FLAG_INTERLACE)
  50  };
  51
  52 +static const struct drm_display_mode drm_mode_288p = {
  53 +       DRM_MODE("720x288", DRM_MODE_TYPE_DRIVER, 13500,
  54 +                720, 720 + 20, 720 + 20 + 64, 720 + 20 + 64 + 60, 0,
  55 +                288, 288 + 2, 288 + 2 + 3, 312, 0, 0)
  56 +};
  57 +
  58  static const struct vc4_vec_tv_mode vc4_vec_tv_modes[] = {
  59         [VC4_VEC_TV_MODE_NTSC] = {
  60 -               .mode = &drm_mode_480i,
  61 +               .interlaced_mode = &drm_mode_480i,
  62 +               .progressive_mode = &drm_mode_240p,
  63                 .config0 = VEC_CONFIG0_NTSC_STD | VEC_CONFIG0_PDEN,
  64                 .config1 = VEC_CONFIG1_C_CVBS_CVBS,
  65         },
  66         [VC4_VEC_TV_MODE_NTSC_J] = {
  67 -               .mode = &drm_mode_480i,
  68 +               .interlaced_mode = &drm_mode_480i,
  69 +               .progressive_mode = &drm_mode_240p,
  70                 .config0 = VEC_CONFIG0_NTSC_STD,
  71                 .config1 = VEC_CONFIG1_C_CVBS_CVBS,
  72         },
  73         [VC4_VEC_TV_MODE_NTSC_443] = {
  74                 /* NTSC with PAL chroma frequency */
  75 -               .mode = &drm_mode_480i,
  76 +               .interlaced_mode = &drm_mode_480i,
  77 +               .progressive_mode = &drm_mode_240p,
  78                 .config0 = VEC_CONFIG0_NTSC_STD,
  79                 .config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
  80                 .custom_freq = 0x2a098acb,
  81         },
  82         [VC4_VEC_TV_MODE_PAL] = {
  83 -               .mode = &drm_mode_576i,
  84 +               .interlaced_mode = &drm_mode_576i,
  85 +               .progressive_mode = &drm_mode_288p,
  86                 .config0 = VEC_CONFIG0_PAL_BDGHI_STD,
  87                 .config1 = VEC_CONFIG1_C_CVBS_CVBS,
  88         },
  89         [VC4_VEC_TV_MODE_PAL_M] = {
  90 -               .mode = &drm_mode_480i,
  91 +               .interlaced_mode = &drm_mode_480i,
  92 +               .progressive_mode = &drm_mode_240p,
  93                 .config0 = VEC_CONFIG0_PAL_M_STD,
  94                 .config1 = VEC_CONFIG1_C_CVBS_CVBS,
  95         },
  96         [VC4_VEC_TV_MODE_PAL_N] = {
  97 -               .mode = &drm_mode_576i,
  98 +               .interlaced_mode = &drm_mode_576i,
  99 +               .progressive_mode = &drm_mode_288p,
 100                 .config0 = VEC_CONFIG0_PAL_N_STD,
 101                 .config1 = VEC_CONFIG1_C_CVBS_CVBS,
 102         },
 103         [VC4_VEC_TV_MODE_PAL60] = {
 104                 /* PAL-M with chroma frequency of regular PAL */
 105 -               .mode = &drm_mode_480i,
 106 +               .interlaced_mode = &drm_mode_480i,
 107 +               .progressive_mode = &drm_mode_240p,
 108                 .config0 = VEC_CONFIG0_PAL_M_STD,
 109                 .config1 = VEC_CONFIG1_C_CVBS_CVBS | VEC_CONFIG1_CUSTOM_FREQ,
 110                 .custom_freq = 0x2a098acb,
 111         },
 112         [VC4_VEC_TV_MODE_SECAM] = {
 113 -               .mode = &drm_mode_576i,
 114 +               .interlaced_mode = &drm_mode_576i,
 115 +               .progressive_mode = &drm_mode_288p,
 116                 .config0 = VEC_CONFIG0_SECAM_STD,
 117                 .config1 = VEC_CONFIG1_C_CVBS_CVBS,
 118                 .custom_freq = 0x29c71c72,
 119 @@ -393,16 +414,32 @@ static void vc4_vec_connector_destroy(st
 120  static int vc4_vec_connector_get_modes(struct drm_connector *connector)
 121  {
 122         struct drm_connector_state *state = connector->state;
 123 -       struct drm_display_mode *mode;
 124 +       struct drm_display_mode *interlaced_mode, *progressive_mode;
 125
 126 -       mode = drm_mode_duplicate(connector->dev,
 127 -                                 vc4_vec_tv_modes[state->tv.mode].mode);
 128 -       if (!mode) {
 129 +       interlaced_mode =
 130 +               drm_mode_duplicate(connector->dev,
 131 +                                  vc4_vec_tv_modes[state->tv.mode].interlaced_mode);
 132 +       progressive_mode =
 133 +               drm_mode_duplicate(connector->dev,
 134 +                                  vc4_vec_tv_modes[state->tv.mode].progressive_mode);
 135 +       if (!interlaced_mode || !progressive_mode) {
 136                 DRM_ERROR("Failed to create a new display mode\n");
 137 +               drm_mode_destroy(connector->dev, interlaced_mode);
 138 +               drm_mode_destroy(connector->dev, progressive_mode);
 139                 return -ENOMEM;
 140         }
 141
 142 -       drm_mode_probed_add(connector, mode);
 143 +       if (connector->cmdline_mode.specified &&
 144 +           connector->cmdline_mode.refresh_specified &&
 145 +           !connector->cmdline_mode.interlace)
 146 +               /* progressive mode set at boot, let's make it preferred */
 147 +               progressive_mode->type |= DRM_MODE_TYPE_PREFERRED;
 148 +       else
 149 +               /* otherwise, interlaced mode is preferred */
 150 +               interlaced_mode->type |= DRM_MODE_TYPE_PREFERRED;
 151 +
 152 +       drm_mode_probed_add(connector, interlaced_mode);
 153 +       drm_mode_probed_add(connector, progressive_mode);
 154
 155         return 1;
 156  }
 157 @@ -583,7 +620,7 @@ static int vc4_vec_encoder_atomic_check(
 158                                         struct drm_connector_state *conn_state)
 159  {
 160         const struct drm_display_mode *reference_mode =
 161 -               vc4_vec_tv_modes[conn_state->tv.mode].mode;
 162 +               vc4_vec_tv_modes[conn_state->tv.mode].interlaced_mode;
 163
 164         if (crtc_state->adjusted_mode.crtc_clock != reference_mode->clock ||
 165             crtc_state->adjusted_mode.crtc_htotal != reference_mode->htotal ||