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drm/tests: edid: Add edid-decode --check output

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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>
This commit is contained in:
Maxime Ripard
2025-06-25 17:14:37 +02:00
parent b17ade59aa
commit d618363a53
1 changed files with 51 additions and 0 deletions
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51
drivers/gpu/drm/tests/drm_kunit_edid.h
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@@ -46,6 +46,13 @@
* Monitor ranges (GTF): 50-70 Hz V, 30-70 kHz H, max dotclock 150 MHz
* Dummy Descriptor:
* Checksum: 0xab
*
* ----------------
*
* edid-decode 1.30.0-5367
* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
*
* EDID conformity: PASS
*/
static const unsigned char test_edid_dvi_1080p[] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
@@ -62,6 +69,10 @@ static const unsigned char test_edid_dvi_1080p[] = {
};
/*
*
* This edid is intentionally broken with the 100MHz limit. It's meant
* to be used only with tests in unusual situations.
*
* edid-decode (hex):
*
* 00 ff ff ff ff ff ff 00 31 d8 2a 00 00 00 00 00
@@ -136,6 +147,18 @@ static const unsigned char test_edid_dvi_1080p[] = {
* Source physical address: 1.2.3.4
* Maximum TMDS clock: 100 MHz
* Checksum: 0x10 Unused space in Extension Block: 106 bytes
*
* ----------------
*
* edid-decode 1.30.0-5367
* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
*
* Failures:
*
* EDID:
* CTA-861: The maximum HDMI TMDS clock is 100000 kHz, but one or more video timings go up to 148500 kHz.
*
* EDID conformity: FAIL
*/
static const unsigned char test_edid_hdmi_1080p_rgb_max_100mhz[] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
@@ -237,6 +260,13 @@ static const unsigned char test_edid_hdmi_1080p_rgb_max_100mhz[] = {
* Source physical address: 1.2.3.4
* Maximum TMDS clock: 200 MHz
* Checksum: 0xfc Unused space in Extension Block: 106 bytes
*
* ----------------
*
* edid-decode 1.30.0-5367
* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
*
* EDID conformity: PASS
*/
static const unsigned char test_edid_hdmi_1080p_rgb_max_200mhz[] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
@@ -338,6 +368,13 @@ static const unsigned char test_edid_hdmi_1080p_rgb_max_200mhz[] = {
* Source physical address: 1.2.3.4
* Maximum TMDS clock: 340 MHz
* Checksum: 0xe0 Unused space in Extension Block: 106 bytes
*
* ----------------
*
* edid-decode 1.30.0-5367
* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
*
* EDID conformity: PASS
*/
static const unsigned char test_edid_hdmi_1080p_rgb_max_340mhz[] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
@@ -445,6 +482,13 @@ static const unsigned char test_edid_hdmi_1080p_rgb_max_340mhz[] = {
* DC_Y444
* Maximum TMDS clock: 200 MHz
* Checksum: 0xd4 Unused space in Extension Block: 106 bytes
*
* ----------------
*
* edid-decode 1.30.0-5367
* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
*
* EDID conformity: PASS
*/
static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz[] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,
@@ -552,6 +596,13 @@ static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_200mhz[] = {
* DC_Y444
* Maximum TMDS clock: 340 MHz
* Checksum: 0xb8 Unused space in Extension Block: 106 bytes
*
* ----------------
*
* edid-decode 1.30.0-5367
* edid-decode SHA: 41ebf7135691 2025-05-01 10:19:22
*
* EDID conformity: PASS
*/
static const unsigned char test_edid_hdmi_1080p_rgb_yuv_dc_max_340mhz[] = {
0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x2a, 0x00,