linux-kernel - [PATCH v3 0/2] drm/vc4: hdmi: Add jack detection to HDMI audio driver

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Message-Id: <20250312-vc4_hotplug-v3-0-d75878677de8@raspberrypi.com>
Date: Wed, 12 Mar 2025 15:40:54 +0000
From: David Turner <david.turner@...pberrypi.com>
To: Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Dave Stevenson <dave.stevenson@...pberrypi.com>, 
 Maíra Canal <mcanal@...lia.com>, 
 Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>, 
 Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 David Turner <david.turner@...pberrypi.com>, 
 Stefan Wahren <wahrenst@....net>
Subject: [PATCH v3 0/2] drm/vc4: hdmi: Add jack detection to HDMI audio
 driver

This series enables jack detection for HDMI audio on vc4 devices.  This
means that userspace audio applications can detect when HDMI devices are
connected or disconnected, for example to play/pause or switch to
another audio device.

Changes in V3:
- Update comment on drm_atomic_helper_connector_hdmi_hotplug() to
  clarify that it must be called for disconnets too

Changes in V2:
- split initial patch into fix and jack detection feature as
  suggested by Dmitry

Signed-off-by: David Turner <david.turner@...pberrypi.com>
---
David Turner (1):
      drm/vc4: hdmi: Add jack detection to HDMI audio driver

Stefan Wahren (1):
      drm/vc4: hdmi: Call HDMI hotplug helper on disconnect

 drivers/gpu/drm/display/drm_hdmi_state_helper.c |  3 ++-
 drivers/gpu/drm/vc4/vc4_hdmi.c                  | 22 ++++++++++++++++++++--
 drivers/gpu/drm/vc4/vc4_hdmi.h                  |  7 +++++++
 3 files changed, 29 insertions(+), 3 deletions(-)
---
base-commit: eff0347e7c228335e9ff64aaf02c66957803af6a
change-id: 20250312-vc4_hotplug-3ae4e783484a

Best regards,
-- 
David Turner <david.turner@...pberrypi.com>