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[2001:14ba:a0c3:3a00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 38308e7fff4ca-337f4c90eb9sm38735781fa.22.2025.09.09.07.52.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 09 Sep 2025 07:52:34 -0700 (PDT) From: Dmitry Baryshkov Date: Tue, 09 Sep 2025 17:52:07 +0300 Subject: [PATCH v4 09/10] drm/connector: verify that HDMI connectors support necessary InfoFrames 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: quoted-printable Message-Id: <20250909-drm-limit-infoframes-v4-9-53fd0a65a4a2@oss.qualcomm.com> References: <20250909-drm-limit-infoframes-v4-0-53fd0a65a4a2@oss.qualcomm.com> In-Reply-To: <20250909-drm-limit-infoframes-v4-0-53fd0a65a4a2@oss.qualcomm.com> 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, Daniel Stone X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1240; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=GCdbmTwssKDcXNKgdZbInJ/IsWBy3ZWBjV1zBKp4r0k=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBowD8bLgmA9Afor/SCSMBp6lvcMJNLH+y+3RLsg Edds4lkZH6JATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCaMA/GwAKCRCLPIo+Aiko 1bQjB/wIC+5fSLnstfGoZMGUfVuruiseL2SNqJJstUfTxGaowQkInoHQfnrNqiPYpowcSvPCRNl UHnaRFcqNgqF2eWsCXtVaCx10y4Xj3MtGesm0e5fNl/X47wnuZX1RlKVA+7gTnlshcZ1F1PyHq7 4O3HqSqvwF+066FKwZL94tPSzVrV5ca4n9uB3H4tEJ1CodYONpSf5XEXIbVmBHdBZz6F5Gns117 nYTWg54k1WItlRdXqTB1OhJ/BoctGr79fhRFb8LTSDBfGG/G7xLshm7FznkSl5DmrmqCsv9fJqw 58UPBF9WUpSazqCvVhovhZ2tXkAQKvB4Xu+5lsWd/6WbhhXH X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwOTA2MDAzOCBTYWx0ZWRfXybv+ho5sFlQO FeeCvey6uc7TkH7BR0XfreQdGzq71CHJimqpDUJV/XgYQFYG4tsbOLF+8HW6FGTRya3uKdKwH4t SqCTqjCS8A2U31viAfe3WdaUVEQWgUXqEujWWMoZlwyYQItzsVwqqAI1V3ZODjJP6uC6SHQDu+a BBnV0rDRH0z7SHUjKiDvzeBNRVWcV9dl/YiU+KOQfxaGv9m5nWkIpO5qLicSd1j6J1JD3ZRy8e5 2++wx6llnBeh1R/UvQcJPoIPElBpAtTRGRaqOWALqVBjah6vsH53wK7xb5YfmJcH3kvi1mHFDp9 cWGnsmB5/XAwQCbsmKx3Hb6OrqPJon4HBDCWIbCkbRWrcgmTbT1cSdGmXGD/lA8w8Kvn3Cczbuk P/5621KO X-Authority-Analysis: v=2.4 cv=J66q7BnS c=1 sm=1 tr=0 ts=68c03f35 cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=yJojWOMRYYMA:10 a=VwQbUJbxAAAA:8 a=QX4gbG5DAAAA:8 a=EUspDBNiAAAA:8 a=NnPSNIktjdB4Ge1gQTIA:9 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 a=AbAUZ8qAyYyZVLSsDulk:22 X-Proofpoint-GUID: SAVjnv98mi5G4w3zjEx1wEnX7R2vaqeJ X-Proofpoint-ORIG-GUID: SAVjnv98mi5G4w3zjEx1wEnX7R2vaqeJ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1117,Hydra:6.1.9,FMLib:17.12.80.40 definitions=2025-09-09_02,2025-09-08_02,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 malwarescore=0 clxscore=1015 spamscore=0 phishscore=0 adultscore=0 priorityscore=1501 suspectscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2509060038 Check that connector initialized by drmm_connector_hdmi_init() supports AVI InfoFrames and warn if it doesn't support Vendor-Specific InfofRames (HDMI InfoFrames are more or less required). Suggested-by: Maxime Ripard Acked-by: Daniel Stone Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_connector.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connecto= r.c index 92a75684a0f7375d3a94e8c666cb71064ecc8035..222a0ef66d9fdbdb56108ceeb40= e7f369d810350 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -602,6 +602,13 @@ int drmm_connector_hdmi_init(struct drm_device *dev, if (!(max_bpc =3D=3D 8 || max_bpc =3D=3D 10 || max_bpc =3D=3D 12)) return -EINVAL; =20 + /* AVI is required */ + if (!(supported_infoframes & DRM_CONNECTOR_INFOFRAME_AVI)) + return -EINVAL; + + if (!(supported_infoframes & DRM_CONNECTOR_INFOFRAME_VENDOR)) + drm_info(dev, "HDMI connector with no support for Vendor-Specific InfoFr= ame\n"); + ret =3D drmm_connector_init(dev, connector, funcs, connector_type, ddc); if (ret) return ret; --=20 2.47.3