Re: [PATCH v2 drm-dp 08/10] drm/hisilicon/hibmc: fix no showing when no connectors connected

From: Yongbang Shi
Date: Mon Jun 30 2025 - 09:20:26 EST



On Fri, Jun 20, 2025 at 05:31:02PM +0800, Yongbang Shi wrote:
From: Baihan Li <libaihan@xxxxxxxxxx>

Our chip support KVM over IP feature, so hibmc driver need to support
displaying without any connectors plugged in. Deleting the detect_ctx()
of VGA to make it connected when no connector is detected.
I think, there is more than that. Please see how AST driver handles the
same issue. I think you need something similar.

Okay, thanks for your advice!


Fixes: 4c962bc929f1 ("drm/hisilicon/hibmc: Add vga connector detect functions")
Signed-off-by: Baihan Li <libaihan@xxxxxxxxxx>
Signed-off-by: Yongbang Shi <shiyongbang@xxxxxxxxxx>
---
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 1 -
1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
index 841e81f47b68..953474d04b5c 100644
--- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
+++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c
@@ -60,7 +60,6 @@ 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 = {
--
2.33.0