From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpout-04.galae.net (smtpout-04.galae.net [185.171.202.116]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EBA9339DBCF for ; Wed, 22 Apr 2026 16:50:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.171.202.116 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776876611; cv=none; b=iwL1npMVwvhk29CD2olidrIlFp3zknoZfIqkzVHRl4vZtV6lmu9qDbNQSg4uD1A6JbfMMXOy2j9Rqz4zHGk7VFS9uIzSYwqqQdlrCPsO633oKU//RqHA0/mgx+mlmTZZuhY7LcP2wmDgEd+kI34EPv8pv//tIolKreFeI5W1deQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776876611; c=relaxed/simple; bh=lksm9whBd8/+/SEcuotRyQgadwPvpjc7iphWmCaGH+4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=qK/6R6sQC/nxLEs/eCvsinY2oHqtMC6/Vq0n0S2AwR8EuFuDYHVS9XYfIUp3APBl0olftBr/6mWgnPppIW0rvXB5O7QZtkHvEP4GnpRf2QGzmVJEABlusdYGMB43yuryhy6tOCEW5YRfetGxobGSktxrSl5TP8PN2zK/vj3+42k= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=ctuzIHOW; arc=none smtp.client-ip=185.171.202.116 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="ctuzIHOW" Received: from smtpout-01.galae.net (smtpout-01.galae.net [212.83.139.233]) by smtpout-04.galae.net (Postfix) with ESMTPS id 4F1B5C5EF07; Wed, 22 Apr 2026 16:50:46 +0000 (UTC) Received: from mail.galae.net (mail.galae.net [212.83.136.155]) by smtpout-01.galae.net (Postfix) with ESMTPS id 6DA7E5FA8F; Wed, 22 Apr 2026 16:50:05 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id D2FED10460C14; Wed, 22 Apr 2026 18:50:01 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=dkim; t=1776876604; h=from:subject:date:message-id:to:cc:mime-version:content-type: content-transfer-encoding:in-reply-to:references; bh=nIH2IFLqK8EjRaZhh4fVH1/L7vYxy0d3YQxfE1eulEU=; b=ctuzIHOWqvqsQOZBsy9p1ty6Cd6Ft98S48KtrofL0JjnNdx5Q3pn1qAFubvxiUgMQVRzgE rtZdrQkfW3alqZ1gbggBNxnU6ox1kTskIn6oNyeOp1hk7CpiYUlXLkipNrPqBBmG9BUVXZ O6MMTp7Hrm6+EwJgmncrmIvFHmRrueBlh+XVyzDCREDhhoGFn15tqm6ayVKtBa9Fg22XUc 67G/jPNZ3cbl9Ybxy/zspLI/r/qDcDE8re7255OgbkdvAvl2i4yLBqDwCyWkdCLsLFl4dS lRFdcIkJbNugZUalcYooAvyFu3uHBw7K5gmE+Tdbcg0jJQMqEwcSw/8q2A6w0w== From: Louis Chauvet Date: Wed, 22 Apr 2026 18:48:24 +0200 Subject: [PATCH v4 27/37] drm/vkms: Introduce configfs for connector type Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260422-vkms-all-config-v4-27-dbb52e9aadc3@bootlin.com> References: <20260422-vkms-all-config-v4-0-dbb52e9aadc3@bootlin.com> In-Reply-To: <20260422-vkms-all-config-v4-0-dbb52e9aadc3@bootlin.com> To: Haneen Mohammed , Simona Vetter , Melissa Wen , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , jose.exposito89@gmail.com, Jonathan Corbet , Shuah Khan , Miguel Ojeda , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt Cc: victoria@system76.com, sebastian.wick@redhat.com, victoria@system76.com, airlied@gmail.com, thomas.petazzoni@bootlin.com, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, Louis Chauvet , llvm@lists.linux.dev, Luca Ceresoli X-Mailer: b4 0.16-dev X-Last-TLS-Session-Version: TLSv1.3 Add a new attribute to connector to change its type. This is mostly cosmetic and don't have direct effect in VKMS behavior. Reviewed-by: Luca Ceresoli Signed-off-by: Louis Chauvet --- Documentation/ABI/testing/configfs-vkms | 7 ++++ Documentation/gpu/vkms.rst | 3 +- drivers/gpu/drm/vkms/vkms_configfs.c | 65 +++++++++++++++++++++++++++++++++ 3 files changed, 74 insertions(+), 1 deletion(-) diff --git a/Documentation/ABI/testing/configfs-vkms b/Documentation/ABI/testing/configfs-vkms index 9f77a878aeef..7f0dd0789f0a 100644 --- a/Documentation/ABI/testing/configfs-vkms +++ b/Documentation/ABI/testing/configfs-vkms @@ -33,6 +33,13 @@ Description: Connection status of the connector. Possible values: 1 - connected, 2 - disconnected, 3 - unknown. +What: /sys/kernel/config/vkms//connectors//type +Date: Nov 2025 +Contact: dri-devel@lists.freedesktop.org +Description: + Type of the connector. Possible values match those + exposed by the "type" field in drm_connector. + What: /sys/kernel/config/vkms//connectors//possible_encoders Date: Nov 2025 Contact: dri-devel@lists.freedesktop.org diff --git a/Documentation/gpu/vkms.rst b/Documentation/gpu/vkms.rst index c811290af983..db86a956e137 100644 --- a/Documentation/gpu/vkms.rst +++ b/Documentation/gpu/vkms.rst @@ -138,10 +138,11 @@ Last but not least, create one or more connectors:: sudo mkdir /config/vkms/my-vkms/connectors/connector0 -Connectors have 1 configurable attribute: +Connectors have 2 configurable attribute: - status: Connection status: 1 connected, 2 disconnected, 3 unknown (same values as those exposed by the "status" property of a connector) +- type: Type of connector. Same values as exposed by the "type" field in drm_connector. To finish the configuration, link the different pipeline items:: diff --git a/drivers/gpu/drm/vkms/vkms_configfs.c b/drivers/gpu/drm/vkms/vkms_configfs.c index 832f73011353..a0b3347b2bd8 100644 --- a/drivers/gpu/drm/vkms/vkms_configfs.c +++ b/drivers/gpu/drm/vkms/vkms_configfs.c @@ -1173,10 +1173,75 @@ static ssize_t connector_status_store(struct config_item *item, return (ssize_t)count; } +static ssize_t connector_type_show(struct config_item *item, char *page) +{ + struct vkms_configfs_connector *connector; + int type; + + connector = connector_item_to_vkms_configfs_connector(item); + + scoped_guard(mutex, &connector->dev->lock) { + type = vkms_config_connector_get_type(connector->config); + } + + return sprintf(page, "%u", type); +} + +static ssize_t connector_type_store(struct config_item *item, + const char *page, size_t count) +{ + struct vkms_configfs_connector *connector; + int val, ret; + + connector = connector_item_to_vkms_configfs_connector(item); + + ret = kstrtouint(page, 10, &val); + + if (ret) + return ret; + + switch (val) { + case DRM_MODE_CONNECTOR_Unknown: + case DRM_MODE_CONNECTOR_VGA: + case DRM_MODE_CONNECTOR_DVII: + case DRM_MODE_CONNECTOR_DVID: + case DRM_MODE_CONNECTOR_DVIA: + case DRM_MODE_CONNECTOR_Composite: + case DRM_MODE_CONNECTOR_SVIDEO: + case DRM_MODE_CONNECTOR_LVDS: + case DRM_MODE_CONNECTOR_Component: + case DRM_MODE_CONNECTOR_9PinDIN: + case DRM_MODE_CONNECTOR_DisplayPort: + case DRM_MODE_CONNECTOR_HDMIA: + case DRM_MODE_CONNECTOR_HDMIB: + case DRM_MODE_CONNECTOR_TV: + case DRM_MODE_CONNECTOR_eDP: + case DRM_MODE_CONNECTOR_VIRTUAL: + case DRM_MODE_CONNECTOR_DSI: + case DRM_MODE_CONNECTOR_DPI: + case DRM_MODE_CONNECTOR_SPI: + case DRM_MODE_CONNECTOR_USB: + break; + default: + return -EINVAL; + } + + scoped_guard(mutex, &connector->dev->lock) { + if (connector->dev->enabled) + return -EBUSY; + + vkms_config_connector_set_type(connector->config, val); + } + + return count; +} + CONFIGFS_ATTR(connector_, status); +CONFIGFS_ATTR(connector_, type); static struct configfs_attribute *connector_item_attrs[] = { &connector_attr_status, + &connector_attr_type, NULL, }; -- 2.54.0