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[2001:14ba:a0c3:3a00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-55f676dc52esm1019907e87.8.2025.08.29.17.23.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Aug 2025 17:23:18 -0700 (PDT) From: Dmitry Baryshkov Date: Sat, 30 Aug 2025 03:23:05 +0300 Subject: [PATCH v3 09/11] drm/connector: verify that HDMI connectors support necessary InfoFrames MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250830-drm-limit-infoframes-v3-9-32fcbec4634e@oss.qualcomm.com> References: <20250830-drm-limit-infoframes-v3-0-32fcbec4634e@oss.qualcomm.com> In-Reply-To: <20250830-drm-limit-infoframes-v3-0-32fcbec4634e@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 X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1517; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=TXVbDyYy47gcECct8bi3FdzY5XC0C+uBNPghEtpGc6w=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBoskRkOHE4fVow7vDWOUvmc/2iUcbcfIOqvZ6C2 Dchv4veASeJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCaLJEZAAKCRCLPIo+Aiko 1YnWB/9HjDIWWBFOTM8HXaStc63uIk6SmVdJldXZsyniEFqPA35U6pxTvz22fY4ZqbvckumzrhR VzHrK4EaLNdvGVvpvzCqVg+lao3Ze8t/g8dHlSQUGz4uDNF9caS3kvpyqdRe/6MHFM1r3HC0Du+ GKwPnh9RgBqznt7b/zoa44AB9KtgP/9LMftD22mQowgMWto5XI1N0Y4cPb6TL3PBmJkmQSvi63B fiTBoU6l5res5/vH2RuIug1cMVng+2t8eompix5jbFUnr3t9cm2f4SNOuTUVo6JZpap7J265oE5 IBWsjZfpSptNolCOsELssC0lCC2aPYXd5tjx6jp63ntEd2vd X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-GUID: Aih_uCe4NHpshkNFo5TzNqduB5inZQ8_ X-Proofpoint-ORIG-GUID: Aih_uCe4NHpshkNFo5TzNqduB5inZQ8_ X-Authority-Analysis: v=2.4 cv=G7gcE8k5 c=1 sm=1 tr=0 ts=68b24479 cx=c_pps a=7E5Bxpl4vBhpaufnMqZlrw==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=2OwXVqhp2XgA:10 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=NnPSNIktjdB4Ge1gQTIA:9 a=QEXdDO2ut3YA:10 a=pJ04lnu7RYOZP9TFuWaZ:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwODI3MDE5OSBTYWx0ZWRfXwiSTCy3jhPX0 hOrVLmHMwJ3DyIlGuSS01fSlT8z8beOvvzsa+3fBoX4yl/TwjtPXILXLcM0RSZMiDTG4kbRXNKz vuwBGStfaIQ22zu/mKIlX3SoQ85GjG1iVKG0bTjoL1opYEZ9XLvZ78c04dpktCw31d/qi1s0gY+ vK3EOPYhUsrY589AytPM9+sVJ7LXrsu+LZ2lGta9/7w1k4cO6JajUSQ4hsmbwPS9eq0gZIXAmNv Oqqbk89Vl6B5UyJfqF3MUbC+5I573+2gQtKQYkuWNR/tEFm3teG5EKgyw2irdcp7qeNy8kj+x0p KBK8NULnxNknzDObo0SreUV077iim0PU80n7lN5u6+2fJZDldnPAJP9/UyXHEHZF4J5bmBFnoiG kCmCJ7Be 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=2025-08-29_07,2025-08-28_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 priorityscore=1501 adultscore=0 impostorscore=0 bulkscore=0 suspectscore=0 clxscore=1015 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2507300000 definitions=main-2508270199 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250829_172322_162705_3B490F58 X-CRM114-Status: GOOD ( 15.90 ) 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 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 Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_connector.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index f031e8f8df57da15bb0f8fe21fd62f02a1576ebe..12ee06bad364183ad56a20b2bf9860491913a295 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -582,6 +582,7 @@ int drmm_connector_hdmi_init(struct drm_device *dev, unsigned long autogenerated_infoframes, unsigned int max_bpc) { + unsigned long supported_infoframes; int ret; if (!vendor || !product) @@ -604,6 +605,15 @@ int drmm_connector_hdmi_init(struct drm_device *dev, if (!(max_bpc == 8 || max_bpc == 10 || max_bpc == 12)) return -EINVAL; + supported_infoframes = software_infoframes | autogenerated_infoframes; + + /* AVI is required */ + if (!(supported_infoframes & DRM_CONNECTOR_INFOFRAME_AVI)) + return -EINVAL; + + if (!(supported_infoframes & DRM_CONNECTOR_INFOFRAME_VENDOR)) + drm_info(dev, "HDMI conneector with no support for Vendor-Specific InfoFrame\n"); + ret = drmm_connector_init(dev, connector, funcs, connector_type, ddc); if (ret) return ret; -- 2.47.2