[PATCH v2 drm-dp 00/10] Fix hibmc driver bugs

From: Yongbang Shi
Date: Fri Jun 20 2025 - 05:41:53 EST


From: Baihan Li <libaihan@xxxxxxxxxx>

There are some bugfix for hibmc-drm driver.
---
ChangeLog:
v1 -> v2:
- use the hibmc_ddc_del() in hibmc_connector_destroy(), suggested by Dmitry Baryshkov.
- fix the tag, suggested by Dmitry Baryshkov.
- don't use the flag, and use more checks in detect_ctx(), suggested by Dmitry Baryshkov.
- delete if (dev->registered), suggested by Dmitry Baryshkov.
- add explanations in commit, suggested by Dmitry Baryshkov.
- delete if (!dp->is_connected) in hibmc_dp_mode_valid(), suggested by Dmitry Baryshkov.
- don't tie VGA and DP status, suggested by Dmitry Baryshkov.
- use crtc clone to let 2 connectors can display simultaneous
- separate the patch, suggested by Dmitry Baryshkov.
---

Baihan Li (10):
drm/hisilicon/hibmc: fix the i2c device resource leak when vdac init
failed
drm/hisilicon/hibmc: fix dp probabilistical detect errors after HPD
irq
drm/hisilicon/hibmc: fix irq_request()'s irq name variable is local
drm/hisilicon/hibmc: fix the hibmc loaded failed bug
drm/hisilicon/hibmc: fix rare monitors cannot display problem
drm/hisilicon/hibmc: add dp mode valid check
drm/hisilicon/hibmc: fix dp and vga cannot show together
drm/hisilicon/hibmc: fix no showing when no connectors connected
drm/hisilicon/hibmc: fix no showing problem with loading hibmc
manually
drm/hisilicon/hibmc: adapting modification for the former commit

drivers/gpu/drm/hisilicon/hibmc/dp/dp_comm.h | 4 +-
drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c | 48 +++++++++----
drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.h | 8 +++
drivers/gpu/drm/hisilicon/hibmc/dp/dp_link.c | 33 ++++++---
.../gpu/drm/hisilicon/hibmc/dp/dp_serdes.c | 12 ----
.../gpu/drm/hisilicon/hibmc/hibmc_drm_dp.c | 70 +++++++++++++++++--
.../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.c | 22 +++---
.../gpu/drm/hisilicon/hibmc/hibmc_drm_drv.h | 1 +
.../gpu/drm/hisilicon/hibmc/hibmc_drm_i2c.c | 5 ++
.../gpu/drm/hisilicon/hibmc/hibmc_drm_vdac.c | 12 ++--
10 files changed, 163 insertions(+), 52 deletions(-)

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2.33.0