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linux
drm/tests: edid: Add edid-decode --check output
Some of our EDIDs are (rightfully) invalid, but most of them should be
valid.
Let's add the edid-decode --check of these EDIDs when they were
generated, so we know what to expect going forward, and a comment to
explicitly mention when we expect them to be broken.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250625-drm-update-edid-v1-3-2d963743ab9e@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>
+51
+51
drivers/gpu/drm/tests/drm_kunit_edid.h
+51
drivers/gpu/drm/tests/drm_kunit_edid.h
···
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* Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz
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* Dummy Descriptor:
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* Checksum: 0xab
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*
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* ----------------
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*
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* edid-decode 1.30.0-5367
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* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
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*
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* EDID conformity: PASS
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*/
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static const unsigned char test_edid_dvi_1080p[] = {
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
···
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};
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/*
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*
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* This edid is intentionally broken with the 100MHz limit. It's meant
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* to be used only with tests in unusual situations.
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*
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* edid-decode (hex):
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*
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* 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00
···
147
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* Source physical address: 1.2.3.4
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* Maximum TMDS clock: 100 MHz
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* Checksum: 0x10 Unused space in Extension Block: 106 bytes
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+
*
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* ----------------
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*
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* edid-decode 1.30.0-5367
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* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
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*
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* Failures:
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*
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* EDID:
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* CTA-861: The maximum HDMI TMDS clock is 100000 kHz, but one or more video timings go up to 148500 kHz.
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*
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* EDID conformity: FAIL
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*/
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static const unsigned char test_edid_hdmi_1080p_rgb_max_100mhz[] = {
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
···
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* Source physical address: 1.2.3.4
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* Maximum TMDS clock: 200 MHz
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* Checksum: 0xfc Unused space in Extension Block: 106 bytes
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+
*
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* ----------------
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+
*
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* edid-decode 1.30.0-5367
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* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
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*
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* EDID conformity: PASS
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*/
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static const unsigned char test_edid_hdmi_1080p_rgb_max_200mhz[] = {
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
···
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* Source physical address: 1.2.3.4
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* Maximum TMDS clock: 340 MHz
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* Checksum: 0xe0 Unused space in Extension Block: 106 bytes
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+
*
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* ----------------
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*
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* edid-decode 1.30.0-5367
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* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
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*
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* EDID conformity: PASS
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*/
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static const unsigned char test_edid_hdmi_1080p_rgb_max_340mhz[] = {
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
···
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* DC_Y444
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* Maximum TMDS clock: 200 MHz
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* Checksum: 0xd4 Unused space in Extension Block: 106 bytes
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*
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* ----------------
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*
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* edid-decode 1.30.0-5367
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* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
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*
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* EDID conformity: PASS
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*/
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static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz[] = {
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457
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
···
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* DC_Y444
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* Maximum TMDS clock: 340 MHz
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* Checksum: 0xb8 Unused space in Extension Block: 106 bytes
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+
*
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+
* ----------------
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+
*
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* edid-decode 1.30.0-5367
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+
* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
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*
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* EDID conformity: PASS
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*/
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static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz[] = {
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0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,