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Mon, 13 Jul 2026 12:33:49 -0700 (PDT) From: =?UTF-8?q?Timo=20Pr=C3=B6mer?= To: Harry Wentland , Leo Li , Alex Deucher , =?UTF-8?q?Christian=20K=C3=B6nig?= , David Airlie , Simona Vetter Cc: Rodrigo Siqueira , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, =?UTF-8?q?Timo=20Pr=C3=B6mer?= Subject: [PATCH v2 0/2] drm/amd/display: Fix missing HF-EEODB blocks in EDID copies Date: Mon, 13 Jul 2026 21:32:35 +0200 Message-ID: <20260713193237.2639-1-timo.proemer04@gmail.com> X-Mailer: git-send-email 2.55.0 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: 8bit Fix an issue in amd/display where devices with HF-EEODB blocks would be missing these additional blocks during EDID reads. The driver previously used `edid->extensions + 1` to calculate the number of blocks to copy, but the base extension flag does not include HF-EEODB blocks. Use drm_edid_block_count() directly to get the true number of blocks, ensuring that HF-EEODB blocks are properly copied. Changes in v2: - Fixed a bug in patch 2 where the bounds check still used the old extension count. - Patch 1 remains unchanged. Timo Prömer (2): drm/edid: Export drm_edid_block_count() drm/amd/display: Use drm_edid_block_count() instead of raw extensions .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_helpers.c | 11 ++++++++--- drivers/gpu/drm/drm_edid.c | 3 ++- include/drm/drm_edid.h | 1 + 3 files changed, 11 insertions(+), 4 deletions(-) -- 2.55.0