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[2001:14ba:a0c3:3a00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-55cef35f11csm2207314e87.51.2025.08.19.11.57.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 19 Aug 2025 11:57:33 -0700 (PDT) From: Dmitry Baryshkov Subject: [PATCH v2 0/8] drm/connector: hdmi: limit infoframes per driver capabilities Date: Tue, 19 Aug 2025 21:57:29 +0300 Message-Id: <20250819-drm-limit-infoframes-v2-0-7595dda24fbd@oss.qualcomm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIABnJpGgC/22NwQqDMBBEf0Vy7koS0die+h/FQzCbumBMzVppE f+9qdBbLwNvYN5sgjERsrgUm0i4ElOcMuhTIfrBTncEcpmFlrqWrarBpQAjBVqAJh99sgEZ0LT aW+OrqpEiTx8JPb0O7a3LPBAvMb2Pl1V925+w+S9cFUhoXK+Mq700eL5G5nJ+2rGPIZQ5RLfv+ wc4eO/LvwAAAA== 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=2828; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=4snEPQfJfU4oBtKfJvvluAVI10o6iuDrs8O3eQOi2C8=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBopMkb63HDxqJrxIQYe1NyexPzL9xIHdWdRrTXA Fyvk8wsxq6JATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCaKTJGwAKCRCLPIo+Aiko 1fF2CACeVmUe9+BfdVASI3ZBc7dYSjYTv32FsbJb0wBdBiQ33bgUKXg7CUEUY4lzQ/Ej6RXQR+6 tW6bD53HFX14S9dmZ3NLffKRyDYjECDps2zvX33zgL6VRulVaQQVEBICIGjgPzFVtxOUONgWhfF TOuqp/AVZTNFF/ZAZ1dROMQctWzPTfMTh5LJ4MVzogwY7q8+pDks6SUFop4idL7K4Ueqvus+ZWd g/lyjbhqqYB2b6A91fUC86essJ+mg6xZ9ni9Yo/OMHcQwdPEVTai0WuNOJfEe78kI37R2uyLzn4 JB+AND2NaG77Gfk8DRYzlNZRV5s5JXJemZXYvg31cNBuUQRM X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Authority-Analysis: v=2.4 cv=MJ9gmNZl c=1 sm=1 tr=0 ts=68a4c91f cx=c_pps a=oc9J++0uMp73DTRD5QyR2A==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=lTUuHy-DAZNZ5WD40gMA:9 a=QEXdDO2ut3YA:10 a=iYH6xdkBrDN1Jqds4HTS:22 X-Proofpoint-ORIG-GUID: Nzn7Nfy3eLmr9n6Xx1ONRpOM6VvxVtwd X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODE2MDAzMSBTYWx0ZWRfX6EqtnFjU7Mjw XoxEFSC6FuJlo0kx9OE63n2MtPlEv86+aAqSM/zuQRRmwU2fwaya5PHqn3g0q6LkjhBWxFcWSvb u7ElbReDHPeur9x24fyr7DQdhElIpfMO/i2gRBtGJvUmOtEyHJyyBCjubO4rEiQ2sd6AsqzKHYc 2UzEJF3tbQjzufuWPlu1Zwq35laLRKEADeZD5Bg3pAeJLReKGpN3TmGorJcvyjyMPEJSD8gPPKC 0/gGmv5weVCsYDpt+Ez1NB1CUrR/7eQfXXLsS9bbSPObYX3fjM+20wKtN0KE4rL6QFMRviBUsbS 2Rr3txYrtHXcztDnABFbnxnbWqVnS2WU9zSCxTrKoBt0S8DCHb+uB8DIpzllM1EPX2MCEMcWvYU Nx+X4z1X X-Proofpoint-GUID: Nzn7Nfy3eLmr9n6Xx1ONRpOM6VvxVtwd 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=2025-08-19_02,2025-08-14_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 impostorscore=0 phishscore=0 bulkscore=0 malwarescore=0 spamscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508160031 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250819_115736_893560_EB007808 X-CRM114-Status: GOOD ( 17.85 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 --- Changes in v2: - Corrected whitespace / newline issues & other small syntax fixes (Liu Ying) - Added audio to the list of InfoFrames supported by the VC4 driver (Liu Ying) - Changed drm_dbg_kms() to drm_warn_once() in the Audio InfoFrame update code (Liu Ying) - Corrected subject for ITE IT6263 patch (Liu Ying) - Added patch, dropping default list of InfoFrames in drm_bridge_connector. - Link to v1: https://lore.kernel.org/r/20250816-drm-limit-infoframes-v1-0-6dc17d5f07e9@oss.qualcomm.com --- Dmitry Baryshkov (8): drm/connector: let drivers declare infoframes as unsupported drm/bridge: adv7511: declare supported infoframes drm/bridge: ite-it6263: 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 drm/display: bridge_connector: drop default list for HDMI 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 | 1 + drivers/gpu/drm/display/drm_hdmi_state_helper.c | 37 ++++++++++++++++++++-- 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 | 5 +++ include/drm/drm_bridge.h | 7 ++++ include/drm/drm_connector.h | 22 +++++++++++++ 17 files changed, 137 insertions(+), 7 deletions(-) --- base-commit: cb640b2ca54617f4a9d4d6efd5ff2afd6be11f19 change-id: 20250815-drm-limit-infoframes-e782fa7f3360 Best regards, -- With best wishes Dmitry