From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2E1CC4F7970 for ; Thu, 2 Jul 2026 14:47:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783003624; cv=none; b=nUjdxewzQYu2Uc0ZZsk0v+Qsbub1+5qYvznfOcpdrJc9Ol02lrgfwq8iUkgYZSK7pBsKuYe6PlekrCNUWWbj3HqyOm/wPADYHk6hBOxH89B4b46fkxBoZH8jws93YU0NeJ988uDdmkuh8xTAusygSMwmqWGhdjPCWGcmkYJmNnA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1783003624; c=relaxed/simple; bh=OxLOsYUFdH3LzOLRg1U92ozuUaA0svyjPlEe8I02Hfw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=NrDR3WdWpqyKKkR83/2Pcz6QKp6+D/bNiRzFAqdGbLaM9sX4aXVAmPAqcbqEe1TZrI2O4pUICxTtQ2BeXYrmAvKF/YT5IPA17TbTTBnpmGGHWY/DcdkeLPI7pyqbyUCazFXTLZEfy9dyTgwzi6s2gHRPSDqVpy8JHycY0eJuzGM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=O7T4CumQ; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="O7T4CumQ" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1783003620; bh=OxLOsYUFdH3LzOLRg1U92ozuUaA0svyjPlEe8I02Hfw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=O7T4CumQy9y7zJXNIECbcmq8k4pp3cJhzxyoSmUkheAcPk4W2GphWF4851pYSc5N+ xnw8r2gKJIl9Xfy0a5RK2mJsXS965Rg8dhdz1obt7hxK243uR/DDvCPsZp8lWBUdSh d043VY8qqyJ5o38XsVBCwI4aIJxXQ87sgbBvsh2aW+3t25YYJSgQauqxlFZ5diD8y4 B+x3G0H2xhnDZWjoXK2P6jitnGWREffedt9E7s6pMPiYmoV6EkhctnmWxhG/tkeuph 6lxMDxIPY1rdA0rockXY8XwH5e1t42EJOFa/9nwQCOiQw+jFizMP5i+mv26dwutsR9 w1Dv9oZPBgkRg== Received: from localhost (unknown [100.64.0.241]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (prime256v1) server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: cristicc) by bali.collaboradmins.com (Postfix) with ESMTPSA id 7996C17E36BA; Thu, 2 Jul 2026 16:47:00 +0200 (CEST) From: Cristian Ciocaltea Date: Thu, 02 Jul 2026 17:46:52 +0300 Subject: [PATCH v8 39/39] drm/tests: edid: Fix conformity for 4K RGB/YUV 340MHz EDID Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260702-dw-hdmi-qp-scramb-v8-39-d79890d00b6a@collabora.com> References: <20260702-dw-hdmi-qp-scramb-v8-0-d79890d00b6a@collabora.com> In-Reply-To: <20260702-dw-hdmi-qp-scramb-v8-0-d79890d00b6a@collabora.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Daniel Stone , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Canal?= , Raspberry Pi Kernel Maintenance Cc: kernel@collabora.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org X-Mailer: b4 0.15.2 The test EDID added by commit 54a5f1c4d5f8 ("drm/tests: hdmi: Provide EDID supporting 4K@30Hz with RGB/YUV") fails 'edid-decode --check' (v1.33.0) with the following issues: Warnings: Block 1, CTA-861 Extension Block: IT Video Formats are overscanned by default, but normally this should be underscanned. YCbCr 4:2:0 Capability Map Data Block: Some YCbCr 4:2:0 timings are invalid for HDMI 2.1 (which requires an RGB timings pixel rate >= 590 MHz). Failures: Block 0, Base EDID: Vendor & Product Identification: EDID 1.3 does not support week 0xff. Detailed Timing Descriptor #1: Mismatch of image size 1600x900 mm vs display size 960x540 mm. Block 1, CTA-861 Extension Block: Vendor-Specific Data Block (HDMI Forum), OUI C4-5D-D8: Max TMDS rate is > 0 and <= 340 or > 600. YCbCr 4:2:0 Video Data Block: This Data Block is empty. Missing VCDB, needed for Set Selectable RGB Quantization to avoid interop issues. EDID: Base EDID: The DTD max image size is 1600x900mm, which is larger than the display size 960.0x540.0mm. Address them while preserving the advertised maximum resolution, BPC and TMDS clock used by the existing KUnit tests: - Week 0xff is not valid for EDID 1.3; set it to 0x00 so that the Model year field becomes a regular Year of Manufacture. - Align the DTD image size with the Basic Display Parameters maximum image size (96 cm x 54 cm). - The HDMI Forum VSDB Max TMDS Character Rate must be 0 when no rate above 340 MHz is supported. The HDMI VSDB still advertises 340 MHz as Max TMDS Clock. - Drop the empty YCbCr 4:2:0 Video Data Block. VIC 95 (3840x2160@30Hz) remains advertised as YUV420-capable via the YCbCr 4:2:0 Capability Map Data Block, which references the corresponding entry in the regular Video Data Block. - Add a Video Capability Data Block advertising selectable RGB and YCC quantization range plus underscan for IT/CE formats; also set the 'IT Video Formats Underscanned' bit in the CTA-861 extension header to match. The only remaining warning is HDMI 2.1 related and can be ignored, as it requires that any mode listed in the YCbCr 4:2:0 Video Data Block must have a corresponding RGB pixel clock >= 590 MHz. Signed-off-by: Cristian Ciocaltea --- drivers/gpu/drm/tests/drm_kunit_edid.c | 57 ++++++++++++++++++++++------------ 1 file changed, 38 insertions(+), 19 deletions(-) diff --git a/drivers/gpu/drm/tests/drm_kunit_edid.c b/drivers/gpu/drm/tests/drm_kunit_edid.c index 4dff28fff796..a6c5e8d6077a 100644 --- a/drivers/gpu/drm/tests/drm_kunit_edid.c +++ b/drivers/gpu/drm/tests/drm_kunit_edid.c @@ -900,22 +900,22 @@ EXPORT_SYMBOL(test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz); * edid-decode (hex): * * 00 ff ff ff ff ff ff 00 31 d8 34 00 00 00 00 00 - * ff 23 01 03 80 60 36 78 0f ee 91 a3 54 4c 99 26 + * 00 23 01 03 80 60 36 78 0f ee 91 a3 54 4c 99 26 * 0f 50 54 20 00 00 01 01 01 01 01 01 01 01 01 01 * 01 01 01 01 01 01 04 74 00 30 f2 70 5a 80 b0 58 - * 8a 00 40 84 63 00 00 1e 00 00 00 fc 00 54 65 73 + * 8a 00 c0 1c 32 00 00 1e 00 00 00 fc 00 54 65 73 * 74 20 45 44 49 44 0a 20 20 20 00 00 00 fd 00 18 * 55 18 5e 22 00 0a 20 20 20 20 20 20 00 00 00 10 - * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 ce + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 e6 * - * 02 03 27 31 41 5f 6c 03 0c 00 10 00 78 44 20 00 - * 00 01 03 6d d8 5d c4 01 44 80 07 00 00 00 00 00 - * 00 e3 0f 01 00 e1 0e 00 00 00 00 00 00 00 00 00 + * 02 03 28 b1 41 5f 6c 03 0c 00 10 00 78 44 20 00 + * 00 01 03 6d d8 5d c4 01 00 80 07 00 00 00 00 00 + * 00 e2 00 ca e3 0f 01 00 00 00 00 00 00 00 00 00 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 - * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 84 + * 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 8a * * ---------------- * @@ -924,7 +924,7 @@ EXPORT_SYMBOL(test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz); * Vendor & Product Identification: * Manufacturer: LNX * Model: 52 - * Model year: 2025 + * Made in: 2025 * Basic Display Parameters & Features: * Digital display * Maximum image size: 96 cm x 54 cm @@ -942,7 +942,7 @@ EXPORT_SYMBOL(test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz); * DMT 0x04: 640x480 59.940476 Hz 4:3 31.469 kHz 25.175000 MHz * Standard Timings: none * Detailed Timing Descriptors: - * DTD 1: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz (1600 mm x 900 mm) + * DTD 1: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz (960 mm x 540 mm) * Hfront 176 Hsync 88 Hback 296 Hpol P * Vfront 8 Vsync 10 Vback 72 Vpol P * Display Product Name: 'Test EDID' @@ -950,12 +950,13 @@ EXPORT_SYMBOL(test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz); * Monitor ranges (GTF): 24-85 Hz V, 24-94 kHz H, max dotclock 340 MHz * Dummy Descriptor: * Extension blocks: 1 - * Checksum: 0xce + * Checksum: 0xe6 * * ---------------- * * Block 1, CTA-861 Extension Block: * Revision: 3 + * Underscans IT Video Formats by default * Supports YCbCr 4:4:4 * Supports YCbCr 4:2:2 * Native detailed modes: 1 @@ -971,31 +972,49 @@ EXPORT_SYMBOL(test_edid_hdmi_1080p_rgb_yuv_4k_yuv420_dc_max_200mhz); * Extended HDMI video details: * Vendor-Specific Data Block (HDMI Forum), OUI C4-5D-D8: * Version: 1 - * Maximum TMDS Character Rate: 340 MHz * SCDC Present * Supports 16-bits/component Deep Color 4:2:0 Pixel Encoding * Supports 12-bits/component Deep Color 4:2:0 Pixel Encoding * Supports 10-bits/component Deep Color 4:2:0 Pixel Encoding + * VRRmin: 0 Hz + * VRRmax: 0 Hz + * Video Capability Data Block: + * YCbCr quantization: Selectable (via AVI YQ) + * RGB quantization: Selectable (via AVI Q) + * PT scan behavior: No Data + * IT scan behavior: Always Underscanned + * CE scan behavior: Always Underscanned * YCbCr 4:2:0 Capability Map Data Block: * VIC 95: 3840x2160 30.000000 Hz 16:9 67.500 kHz 297.000000 MHz - * YCbCr 4:2:0 Video Data Block: - * Checksum: 0x84 + * Checksum: 0x8a Unused space in Extension Block: 87 bytes + * + * ---------------- + * + * edid-decode 1.33.0 + * + * Warnings: + * + * Block 1, CTA-861 Extension Block: + * YCbCr 4:2:0 Capability Map Data Block: Some YCbCr 4:2:0 timings are invalid for HDMI 2.1 + * (which requires an RGB timings pixel rate >= 590 MHz). + * + * EDID conformity: PASS */ const unsigned char test_edid_hdmi_4k_rgb_yuv420_dc_max_340mhz[] = { 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x31, 0xd8, 0x34, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xff, 0x23, 0x01, 0x03, 0x80, 0x60, 0x36, 0x78, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x23, 0x01, 0x03, 0x80, 0x60, 0x36, 0x78, 0x0f, 0xee, 0x91, 0xa3, 0x54, 0x4c, 0x99, 0x26, 0x0f, 0x50, 0x54, 0x20, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x04, 0x74, 0x00, 0x30, 0xf2, 0x70, - 0x5a, 0x80, 0xb0, 0x58, 0x8a, 0x00, 0x40, 0x84, 0x63, 0x00, 0x00, 0x1e, + 0x5a, 0x80, 0xb0, 0x58, 0x8a, 0x00, 0xc0, 0x1c, 0x32, 0x00, 0x00, 0x1e, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x54, 0x65, 0x73, 0x74, 0x20, 0x45, 0x44, 0x49, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x55, 0x18, 0x5e, 0x22, 0x00, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xce, 0x02, 0x03, 0x27, 0x31, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0xe6, 0x02, 0x03, 0x28, 0xb1, 0x41, 0x5f, 0x6c, 0x03, 0x0c, 0x00, 0x10, 0x00, 0x78, 0x44, 0x20, 0x00, - 0x00, 0x01, 0x03, 0x6d, 0xd8, 0x5d, 0xc4, 0x01, 0x44, 0x80, 0x07, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0xe3, 0x0f, 0x01, 0x00, 0xe1, 0x0e, 0x00, + 0x00, 0x01, 0x03, 0x6d, 0xd8, 0x5d, 0xc4, 0x01, 0x00, 0x80, 0x07, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0xe2, 0x00, 0xca, 0xe3, 0x0f, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, @@ -1003,7 +1022,7 @@ const unsigned char test_edid_hdmi_4k_rgb_yuv420_dc_max_340mhz[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x84 + 0x00, 0x00, 0x00, 0x8a, }; EXPORT_SYMBOL(test_edid_hdmi_4k_rgb_yuv420_dc_max_340mhz); -- 2.54.0