linux-kernel - [PATCH v5 drm-dp 9/9] drm/hisilicon/hibmc: Add vga connector detect functions

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Message-ID: <20250307101640.4003229-10-shiyongbang@huawei.com>
Date: Fri, 7 Mar 2025 18:16:40 +0800
From: Yongbang Shi <shiyongbang@...wei.com>
To: <xinliang.liu@...aro.org>, <tiantao6@...ilicon.com>,
	<maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
	<tzimmermann@...e.de>, <airlied@...il.com>, <daniel@...ll.ch>,
	<kong.kongxinwei@...ilicon.com>
CC: <liangjian010@...wei.com>, <chenjianmin@...wei.com>,
	<lidongming5@...wei.com>, <shiyongbang@...wei.com>, <libaihan@...wei.com>,
	<shenjian15@...wei.com>, <shaojijie@...wei.com>,
	<dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v5 drm-dp 9/9] drm/hisilicon/hibmc: Add vga connector detect functions

From: Baihan Li <libaihan@...wei.com>

Because the connected VGA connector would make driver can't get the
userspace call, adding detect_ctx in vga connector to make HPD active
userspace.

Signed-off-by: Baihan Li <libaihan@...wei.com>
Signed-off-by: Yongbang Shi <shiyongbang@...wei.com>
---
 drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
index 05e19ea4c9f9..e8a527ede854 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
@@ -60,6 +60,7 @@ static void hibmc_connector_destroy(struct drm_connector *connector)
 static const struct drm_connector_helper_funcs
 	hibmc_connector_helper_funcs = {
 	.get_modes = hibmc_connector_get_modes,
+	.detect_ctx = drm_connector_helper_detect_from_ddc,
 };
 
 static const struct drm_connector_funcs hibmc_connector_funcs = {
@@ -127,5 +128,7 @@ int hibmc_vdac_init(struct hibmc_drm_private *priv)
 
 	drm_connector_attach_encoder(connector, encoder);
 
+	connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
+
 	return 0;
 }
-- 
2.33.0