Unverified Commit d618363a authored by Maxime Ripard's avatar Maxime Ripard
Browse files

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: default avatarJavier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250625-drm-update-edid-v1-3-2d963743ab9e@kernel.org


Signed-off-by: default avatarMaxime Ripard <mripard@kernel.org>
parent b17ade59

drivers/gpu/drm/tests/drm_kunit_edid.h

+51 −0
Original line number Diff line number Diff line
@@ -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,