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[2001:14ba:a0c3:3a00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-55cef3cca21sm856554e87.104.2025.08.16.05.41.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 16 Aug 2025 05:41:04 -0700 (PDT) From: Dmitry Baryshkov Subject: [PATCH 0/7] drm/connector: hdmi: limit infoframes per driver capabilities Date: Sat, 16 Aug 2025 15:41:00 +0300 Message-Id: <20250816-drm-limit-infoframes-v1-0-6dc17d5f07e9@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAF18oGgC/x3MSwqAMAwA0atI1gZqix+8irgommjAVklFBPHuF pdvMfNAIhVK0BcPKF2SZI8ZVVnAtPq4EMqcDdbY2nRVjbMG3CTIiRJ5Z/WBElLbWfYtO9cYyOm hxHL/22F83w++h3ZyZgAAAA== X-Change-ID: 20250815-drm-limit-infoframes-e782fa7f3360 To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Sandy Huang , =?utf-8?q?Heiko_St=C3=BCbner?= , Andy Yan , Chen-Yu Tsai , Samuel Holland , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Canal?= , Raspberry Pi Kernel Maintenance , Liu Ying , Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2224; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=rdcPrfCA8M3yJ02gdAYNdSPeQnvEBJT/WVjtw9rGblA=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBooHxel4gzygfQobSNeCeCVgeypJ9lKzy5dsSVX uc9QkQAbKiJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCaKB8XgAKCRCLPIo+Aiko 1YxCCACOim4bCjHIWqX1M1bZiVMLzRI3Y8QTdbuiNgrmLKiOaXRYiFmSpaZRI5eGf0CarO1iNUi IQjq0N0dSpJFtGKIfadH9PJ8064ZG7NIpU68xmKG1OFzxevGRyfeNJZ7i4GhEi/tV6G96JOSs8H iwPRsqFRQrzhwp8qORn+7d2WO/i9IRJf/2vrpu6496ztu9HTv0ZNQjECzwcE8yDWeZttI0+4gR5 LzTcTBEjoqQ/4IYz9y6hTrl+OeWEdnWvuOJ3FPXWNrBp/wJ3O5D8k/YbUSYRsDcSwrd/5CllFgA XVjiF+Q3Rz/QlzANj6UXQ7V7QH3pQwvw9ipP0T0b3jfjVNWw X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Authority-Analysis: v=2.4 cv=Sdn3duRu c=1 sm=1 tr=0 ts=68a07c63 cx=c_pps a=mPf7EqFMSY9/WdsSgAYMbA==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=EUspDBNiAAAA:8 a=lTUuHy-DAZNZ5WD40gMA:9 a=QEXdDO2ut3YA:10 a=dawVfQjAaf238kedN5IG:22 X-Proofpoint-ORIG-GUID: KS6B3sOl4m2RyupSC01BSQG3S-ydAPCj X-Proofpoint-GUID: KS6B3sOl4m2RyupSC01BSQG3S-ydAPCj X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODE2MDA0MiBTYWx0ZWRfX+ckxpE0/9FcA yoXdGJo2/jz57rAr2HLq0F9MVKm3La/NO1svpsefsSmybaS2ri0VRb87JR5osAJCxrMSq+y12bw cugJxz6i6nyDBY3dzw1bGAKN3UW3IvaOJBKy/r+ewiR6faNTl5qGZzI3arYuycBJstm2iBT0PFh MM4vife7WP8MwLVg2LgHFdshTZoLrAOEu1uQa1A5immIak8ycS7HWEkzYpB9E1ZurH3F14m4Iht bLcFNuIt9/Zw1swLzmw8Fi9HoFbninHemeTC8KmW2SjRcN0LK9Nwo5aEvmKyw3VLFPLoiOR0h5p mLnNbi4XoHxEklbZNYiifKI1uww2qnTDLPPVFi9N5LeK6g7uu2kXLspCFRAwnGOqYSm+cv83Tg+ OiLY7R21 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-08-16_04,2025-08-14_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 clxscore=1015 suspectscore=0 priorityscore=1501 spamscore=0 adultscore=0 malwarescore=0 bulkscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508160042 Status: O It's not uncommon for the particular device to support only a subset of HDMI InfoFrames. It's not a big problem for the kernel, since we adopted a model of ignoring the unsupported Infoframes, but it's a bigger problem for the userspace: we end up having files in debugfs which do mot match what is being sent on the wire. Sort that out, making sure that all interfaces are consistent. Signed-off-by: Dmitry Baryshkov --- Dmitry Baryshkov (7): drm/connector: let drivers declare infoframes as unsupported drm/bridge: adv7511: declare supported infoframes drm/bridge: ite-it6232: declare supported infoframes drm/bridge: lontium-lt9611: declare supported infoframes drm/bridge: synopsys/dw-hdmi-qp: declare supported infoframes drm/msm: hdmi: declare supported infoframes drm/rockchip: rk3066: declare supported infoframes drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 1 + drivers/gpu/drm/bridge/ite-it6263.c | 1 + drivers/gpu/drm/bridge/lontium-lt9611.c | 4 ++ drivers/gpu/drm/bridge/synopsys/dw-hdmi-qp.c | 3 ++ drivers/gpu/drm/display/drm_bridge_connector.c | 6 +++ drivers/gpu/drm/display/drm_hdmi_state_helper.c | 43 +++++++++++++++++++++- drivers/gpu/drm/drm_connector.c | 4 ++ drivers/gpu/drm/drm_debugfs.c | 16 +++++--- drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 4 ++ drivers/gpu/drm/rockchip/inno_hdmi.c | 1 + drivers/gpu/drm/rockchip/rk3066_hdmi.c | 1 + drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 1 + drivers/gpu/drm/tests/drm_connector_test.c | 28 ++++++++++++++ drivers/gpu/drm/tests/drm_hdmi_state_helper_test.c | 8 ++++ drivers/gpu/drm/vc4/vc4_hdmi.c | 4 ++ include/drm/drm_bridge.h | 7 ++++ include/drm/drm_connector.h | 23 ++++++++++++ 17 files changed, 148 insertions(+), 7 deletions(-) --- base-commit: cb640b2ca54617f4a9d4d6efd5ff2afd6be11f19 change-id: 20250815-drm-limit-infoframes-e782fa7f3360 Best regards,