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Subject[PATCH v2] drm/edid: Add modes from CTA-861-G
From
The new modes are needed for exotic displays such as 8K. Verified that
modes like 8K60 and 4K120 are properly obtained from a Samsung Q900R.

Signed-off-by: Thomas Anderson <thomasanderson@google.com>
---
drivers/gpu/drm/drm_edid.c | 287 +++++++++++++++++++++++++++++++++++-
include/drm/drm_connector.h | 16 +-
2 files changed, 290 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 474ac04d5600..11e63e70274e 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -1378,6 +1378,273 @@ static const struct drm_display_mode edid_cea_modes[] = {
6304, 6600, 0, 2160, 2168, 2178, 2250, 0,
DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
.vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 128 - dummy */
+ { },
+ /* 129 - reserved for native timing 1 */
+ { },
+ /* 130 - reserved for native timing 2 */
+ { },
+ /* 131 - reserved for native timing 3 */
+ { },
+ /* 132 - reserved for native timing 4 */
+ { },
+ /* 133 - reserved for native timing 5 */
+ { },
+ /* 134 - reserved for native timing 6 */
+ { },
+ /* 135 - reserved for native timing 7 */
+ { },
+ /* 136 - reserved for native timing 8 */
+ { },
+ /* 137 - reserved for native timing 9 */
+ { },
+ /* 138 - reserved for native timing 10 */
+ { },
+ /* 139 - reserved for native timing 11 */
+ { },
+ /* 140 - reserved for native timing 12 */
+ { },
+ /* 141 - reserved for native timing 13 */
+ { },
+ /* 142 - reserved for native timing 14 */
+ { },
+ /* 143 - reserved for native timing 15 */
+ { },
+ /* 144 - reserved for native timing 16 */
+ { },
+ /* 145 - reserved for native timing 17 */
+ { },
+ /* 146 - reserved for native timing 18 */
+ { },
+ /* 147 - reserved for native timing 19 */
+ { },
+ /* 148 - reserved for native timing 20 */
+ { },
+ /* 149 - reserved for native timing 21 */
+ { },
+ /* 150 - reserved for native timing 22 */
+ { },
+ /* 151 - reserved for native timing 23 */
+ { },
+ /* 152 - reserved for native timing 24 */
+ { },
+ /* 153 - reserved for native timing 25 */
+ { },
+ /* 154 - reserved for native timing 26 */
+ { },
+ /* 155 - reserved for native timing 27 */
+ { },
+ /* 156 - reserved for native timing 28 */
+ { },
+ /* 157 - reserved for native timing 29 */
+ { },
+ /* 158 - reserved for native timing 30 */
+ { },
+ /* 159 - reserved for native timing 31 */
+ { },
+ /* 160 - reserved for native timing 32 */
+ { },
+ /* 161 - reserved for native timing 33 */
+ { },
+ /* 162 - reserved for native timing 34 */
+ { },
+ /* 163 - reserved for native timing 35 */
+ { },
+ /* 164 - reserved for native timing 36 */
+ { },
+ /* 165 - reserved for native timing 37 */
+ { },
+ /* 166 - reserved for native timing 38 */
+ { },
+ /* 167 - reserved for native timing 39 */
+ { },
+ /* 168 - reserved for native timing 40 */
+ { },
+ /* 169 - reserved for native timing 41 */
+ { },
+ /* 170 - reserved for native timing 42 */
+ { },
+ /* 171 - reserved for native timing 43 */
+ { },
+ /* 172 - reserved for native timing 44 */
+ { },
+ /* 173 - reserved for native timing 45 */
+ { },
+ /* 174 - reserved for native timing 46 */
+ { },
+ /* 175 - reserved for native timing 47 */
+ { },
+ /* 176 - reserved for native timing 48 */
+ { },
+ /* 177 - reserved for native timing 49 */
+ { },
+ /* 178 - reserved for native timing 50 */
+ { },
+ /* 179 - reserved for native timing 51 */
+ { },
+ /* 180 - reserved for native timing 52 */
+ { },
+ /* 181 - reserved for native timing 53 */
+ { },
+ /* 182 - reserved for native timing 54 */
+ { },
+ /* 183 - reserved for native timing 55 */
+ { },
+ /* 184 - reserved for native timing 56 */
+ { },
+ /* 185 - reserved for native timing 57 */
+ { },
+ /* 186 - reserved for native timing 58 */
+ { },
+ /* 187 - reserved for native timing 59 */
+ { },
+ /* 188 - reserved for native timing 60 */
+ { },
+ /* 189 - reserved for native timing 61 */
+ { },
+ /* 190 - reserved for native timing 62 */
+ { },
+ /* 191 - reserved for native timing 63 */
+ { },
+ /* 192 - reserved for native timing 64 */
+ { },
+ /* 193 - 5120x2160@120Hz 64:27 */
+ { DRM_MODE("5120x2160", DRM_MODE_TYPE_DRIVER, 1485000, 5120, 5284,
+ 5372, 5500, 0, 2160, 2168, 2178, 2250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 194 - 7680x4320@24Hz 16:9 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232,
+ 10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+ /* 195 - 7680x4320@25Hz 16:9 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032,
+ 10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+ /* 196 - 7680x4320@30Hz 16:9 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232,
+ 8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+ /* 197 - 7680x4320@48Hz 16:9 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232,
+ 10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+ /* 198 - 7680x4320@50Hz 16:9 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032,
+ 10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+ /* 199 - 7680x4320@60Hz 16:9 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232,
+ 8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+ /* 200 - 7680x4320@100Hz 16:9 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792,
+ 9968, 10560, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+ /* 201 - 7680x4320@120Hz 16:9 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032,
+ 8208, 8800, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_16_9, },
+ /* 202 - 7680x4320@24Hz 64:27 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10232,
+ 10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 203 - 7680x4320@25Hz 64:27 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 10032,
+ 10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 204 - 7680x4320@30Hz 64:27 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 1188000, 7680, 8232,
+ 8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 205 - 7680x4320@48Hz 64:27 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10232,
+ 10408, 11000, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 206 - 7680x4320@50Hz 64:27 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 10032,
+ 10208, 10800, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 207 - 7680x4320@60Hz 64:27 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 2376000, 7680, 8232,
+ 8408, 9000, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 208 - 7680x4320@100Hz 64:27 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 9792,
+ 9968, 10560, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 209 - 7680x4320@120Hz 64:27 */
+ { DRM_MODE("7680x4320", DRM_MODE_TYPE_DRIVER, 4752000, 7680, 8032,
+ 8208, 8800, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 210 - 10240x4320@24Hz 64:27 */
+ { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 11732,
+ 11908, 12500, 0, 4320, 4336, 4356, 4950, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 24, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 211 - 10240x4320@25Hz 64:27 */
+ { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 12732,
+ 12908, 13500, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 25, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 212 - 10240x4320@30Hz 64:27 */
+ { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 1485000, 10240, 10528,
+ 10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 30, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 213 - 10240x4320@48Hz 64:27 */
+ { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 11732,
+ 11908, 12500, 0, 4320, 4336, 4356, 4950, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 48, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 214 - 10240x4320@50Hz 64:27 */
+ { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 12732,
+ 12908, 13500, 0, 4320, 4336, 4356, 4400, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 50, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 215 - 10240x4320@60Hz 64:27 */
+ { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 2970000, 10240, 10528,
+ 10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 60, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 216 - 10240x4320@100Hz 64:27 */
+ { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 12432,
+ 12608, 13200, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 100, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 217 - 10240x4320@120Hz 64:27 */
+ { DRM_MODE("10240x4320", DRM_MODE_TYPE_DRIVER, 5940000, 10240, 10528,
+ 10704, 11000, 0, 4320, 4336, 4356, 4500, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 120, .picture_aspect_ratio = HDMI_PICTURE_ASPECT_64_27, },
+ /* 218 - 4096x2160@100Hz 256:135 */
+ { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4896,
+ 4984, 5280, 0, 2160, 2168, 2178, 2250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 100,
+ .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
+ /* 219 - 4096x2160@120Hz 256:135 */
+ { DRM_MODE("4096x2160", DRM_MODE_TYPE_DRIVER, 1188000, 4096, 4184,
+ 4272, 4400, 0, 2160, 2168, 2178, 2250, 0,
+ DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC),
+ .vrefresh = 120,
+ .picture_aspect_ratio = HDMI_PICTURE_ASPECT_256_135, },
};

/*
@@ -3131,6 +3398,12 @@ cea_mode_alternate_timings(u8 vic, struct drm_display_mode *mode)
return false;
}

+static bool drm_valid_cea_vic(u8 vic)
+{
+ return (vic > 0 && vic < 128) ||
+ (vic > 192 && vic < ARRAY_SIZE(edid_cea_modes));
+}
+
static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_match,
unsigned int clock_tolerance)
{
@@ -3147,6 +3420,9 @@ static u8 drm_match_cea_mode_clock_tolerance(const struct drm_display_mode *to_m
struct drm_display_mode cea_mode = edid_cea_modes[vic];
unsigned int clock1, clock2;

+ if (!drm_valid_cea_vic(vic))
+ continue;
+
/* Check both 60Hz and 59.94Hz */
clock1 = cea_mode.clock;
clock2 = cea_mode_alternate_clock(&cea_mode);
@@ -3186,6 +3462,9 @@ u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
struct drm_display_mode cea_mode = edid_cea_modes[vic];
unsigned int clock1, clock2;

+ if (!drm_valid_cea_vic(vic))
+ continue;
+
/* Check both 60Hz and 59.94Hz */
clock1 = cea_mode.clock;
clock2 = cea_mode_alternate_clock(&cea_mode);
@@ -3204,13 +3483,11 @@ u8 drm_match_cea_mode(const struct drm_display_mode *to_match)
}
EXPORT_SYMBOL(drm_match_cea_mode);

-static bool drm_valid_cea_vic(u8 vic)
-{
- return vic > 0 && vic < ARRAY_SIZE(edid_cea_modes);
-}
-
static enum hdmi_picture_aspect drm_get_cea_aspect_ratio(const u8 video_code)
{
+ if (!drm_valid_cea_vic(video_code))
+ return HDMI_PICTURE_ASPECT_NONE;
+
return edid_cea_modes[video_code].picture_aspect_ratio;
}

diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index 5f8c3389d46f..e6e02f5853f5 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -188,19 +188,19 @@ struct drm_hdmi_info {

/**
* @y420_vdb_modes: bitmap of modes which can support ycbcr420
- * output only (not normal RGB/YCBCR444/422 outputs). There are total
- * 107 VICs defined by CEA-861-F spec, so the size is 128 bits to map
- * upto 128 VICs;
+ * output only (not normal RGB/YCBCR444/422 outputs). The max VIC
+ * defined by the CEA-861-G spec is 219, so the size is 256 bits to map
+ * upto 256 VICs.
*/
- unsigned long y420_vdb_modes[BITS_TO_LONGS(128)];
+ unsigned long y420_vdb_modes[BITS_TO_LONGS(256)];

/**
* @y420_cmdb_modes: bitmap of modes which can support ycbcr420
- * output also, along with normal HDMI outputs. There are total 107
- * VICs defined by CEA-861-F spec, so the size is 128 bits to map upto
- * 128 VICs;
+ * output also, along with normal HDMI outputs. The max VIC defined by
+ * the CEA-861-G spec is 219, so the size is 256 bits to map upto 256
+ * VICs.
*/
- unsigned long y420_cmdb_modes[BITS_TO_LONGS(128)];
+ unsigned long y420_cmdb_modes[BITS_TO_LONGS(256)];

/** @y420_cmdb_map: bitmap of SVD index, to extraxt vcb modes */
u64 y420_cmdb_map;
--
2.24.0.393.g34dc348eaf-goog
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