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[2001:14ba:a0c3:3a00:264b:feff:fe8b:be8a]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-54c1e635becsm1312572e87.127.2025.04.07.08.11.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Apr 2025 08:11:06 -0700 (PDT) From: Dmitry Baryshkov Date: Mon, 07 Apr 2025 18:11:00 +0300 Subject: [PATCH v5 03/11] drm/connector: add CEC-related fields 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: <20250407-drm-hdmi-connector-cec-v5-3-04809b10d206@oss.qualcomm.com> References: <20250407-drm-hdmi-connector-cec-v5-0-04809b10d206@oss.qualcomm.com> In-Reply-To: <20250407-drm-hdmi-connector-cec-v5-0-04809b10d206@oss.qualcomm.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Dave Stevenson , =?utf-8?q?Ma=C3=ADra_Canal?= , Raspberry Pi Kernel Maintenance , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Dmitry Baryshkov X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=4933; i=dmitry.baryshkov@oss.qualcomm.com; h=from:subject:message-id; bh=54WKoDcdJyjz62IAsiH81XQN48gV/uJbhVTZ/pWNAxU=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBn8+sD6cvwtteDotOSmKG7WC/u6//3vAxe6iMA6 VLaYEOY7XSJATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZ/PrAwAKCRCLPIo+Aiko 1ZICB/4orDENRUizoSYNKf5t3NAEOAtkOzoBiFDKADkJ/J0MozhssRAydqfPXkJwvHyILfY3xaK ErUEErKsHPJNTBEODsaYwEWYsQE27XyKzT1PJp+Ly+nYEgDg2htXz8mta88d3gjFQaHjuETzMAl Pm5SUHcuz/1b4YD0OVsAILZJjz6/eKfE/+GehiWI8+HgzSXhoPzwEoFnIa57vQMigz1/5xv7Go3 jiPnLH4lQA6T6i+IMRLngCjBobSPrXZTZ/AIz73Z7vPJ2F0S06NF93VnKMeH/sgfCxC0+gaZnNj 7X8gI+tod8Egj9rTHjTqQHv2EDnP1f6gun+3KvoYyUNy4NXG X-Developer-Key: i=dmitry.baryshkov@oss.qualcomm.com; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A X-Proofpoint-GUID: -ohQZ1sbEV4Zs6no6avAVrkEYPMVy-uE X-Authority-Analysis: v=2.4 cv=LLlmQIW9 c=1 sm=1 tr=0 ts=67f3eb0c cx=c_pps a=HLyN3IcIa5EE8TELMZ618Q==:117 a=xqWC_Br6kY4A:10 a=IkcTkHD0fZMA:10 a=XR8D0OoHHMoA:10 a=KKAkSRfTAAAA:8 a=EUspDBNiAAAA:8 a=AOKA84pl558A9rEY638A:9 a=QEXdDO2ut3YA:10 a=bTQJ7kPSJx9SKPbeHEYW:22 a=cvBusfyB2V15izCimMoJ:22 X-Proofpoint-ORIG-GUID: -ohQZ1sbEV4Zs6no6avAVrkEYPMVy-uE X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-04-07_04,2025-04-03_03,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 impostorscore=0 bulkscore=0 clxscore=1015 mlxlogscore=988 malwarescore=0 phishscore=0 lowpriorityscore=0 priorityscore=1501 mlxscore=0 spamscore=0 adultscore=0 suspectscore=0 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2504070105 As a preparation to adding HDMI CEC helper code, add CEC-related fields to the struct drm_connector. The callbacks abstract CEC infrastructure in order to support CEC adapters and CEC notifiers in a universal way. Signed-off-by: Dmitry Baryshkov Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/drm_connector.c | 42 +++++++++++++++++++++++++++++++ include/drm/drm_connector.h | 56 +++++++++++++++++++++++++++++++++++++= ++++ 2 files changed, 98 insertions(+) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connecto= r.c index 48b08c9611a7bc70e4d849ff33ecf1c9de3cf0ae..ba08fbd973829e49ea977251c4f= 0fb6d96ade631 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -279,6 +279,7 @@ static int drm_connector_init_only(struct drm_device *d= ev, INIT_LIST_HEAD(&connector->probed_modes); INIT_LIST_HEAD(&connector->modes); mutex_init(&connector->mutex); + mutex_init(&connector->cec.mutex); mutex_init(&connector->eld_mutex); mutex_init(&connector->edid_override_mutex); mutex_init(&connector->hdmi.infoframes.lock); @@ -701,6 +702,47 @@ static void drm_mode_remove(struct drm_connector *conn= ector, drm_mode_destroy(connector->dev, mode); } =20 +/** + * drm_connector_cec_phys_addr_invalidate - invalidate CEC physical address + * @connector: connector undergoing CEC operation + * + * Invalidated CEC physical address set for this DRM connector. + */ +void drm_connector_cec_phys_addr_invalidate(struct drm_connector *connecto= r) +{ + mutex_lock(&connector->cec.mutex); + + if (connector->cec.funcs && + connector->cec.funcs->phys_addr_invalidate) + connector->cec.funcs->phys_addr_invalidate(connector); + + mutex_unlock(&connector->cec.mutex); +} +EXPORT_SYMBOL(drm_connector_cec_phys_addr_invalidate); + + +/** + * drm_connector_cec_phys_addr_set - propagate CEC physical address + * @connector: connector undergoing CEC operation + * + * Propagate CEC physical address from the display_info to this DRM connec= tor. + */ +void drm_connector_cec_phys_addr_set(struct drm_connector *connector) +{ + u16 addr; + + mutex_lock(&connector->cec.mutex); + + addr =3D connector->display_info.source_physical_address; + + if (connector->cec.funcs && + connector->cec.funcs->phys_addr_set) + connector->cec.funcs->phys_addr_set(connector, addr); + + mutex_unlock(&connector->cec.mutex); +} +EXPORT_SYMBOL(drm_connector_cec_phys_addr_set); + /** * drm_connector_cleanup - cleans up an initialised connector * @connector: connector to cleanup diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index f13d597370a30dc1b14c630ee00145256052ba56..5f47df9a586a3e0acc26204b86e= e7242acad7403 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1191,6 +1191,37 @@ struct drm_connector_hdmi_audio_funcs { bool enable, int direction); }; =20 +void drm_connector_cec_phys_addr_invalidate(struct drm_connector *connecto= r); +void drm_connector_cec_phys_addr_set(struct drm_connector *connector); + +/** + * struct drm_connector_cec_funcs - drm_hdmi_connector control functions + */ +struct drm_connector_cec_funcs { + /** + * @phys_addr_invalidate: mark CEC physical address as invalid + * + * The callback to mark CEC physical address as invalid, abstracting + * the operation. + */ + void (*phys_addr_invalidate)(struct drm_connector *connector); + + /** + * @phys_addr_set: set CEC physical address + * + * The callback to set CEC physical address, abstracting the operation. + */ + void (*phys_addr_set)(struct drm_connector *connector, u16 addr); + + /** + * @unregister: unregister CEC adapter / notifier. + * + * The callback to unregister CEC adapter or notifier, abstracting the + * operation. + */ + void (*unregister)(struct drm_connector *connector); +}; + /** * struct drm_connector_hdmi_funcs - drm_hdmi_connector control functions */ @@ -1832,6 +1863,26 @@ struct drm_connector_hdmi { } infoframes; }; =20 +/** + * struct drm_connector_cec - DRM Connector CEC-related structure + */ +struct drm_connector_cec { + /** + * @mutex: protects all fields in this structure. + */ + struct mutex mutex; + + /** + * @funcs: CEC Control Functions + */ + const struct drm_connector_cec_funcs *funcs; + + /** + * @data: CEC implementation-specific data + */ + void *data; +}; + /** * struct drm_connector - central DRM connector control structure * @@ -2253,6 +2304,11 @@ struct drm_connector { * @hdmi_audio: HDMI codec properties and non-DRM state. */ struct drm_connector_hdmi_audio hdmi_audio; + + /** + * @cec: CEC-related data. + */ + struct drm_connector_cec cec; }; =20 #define obj_to_connector(x) container_of(x, struct drm_connector, base) --=20 2.39.5