linux-kernel - [PATCH 0/2] drm/meson: fix hdmi auxiliary system operation without display

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Date: Fri, 26 Apr 2024 18:02:52 +0200
From: Jerome Brunet <jbrunet@...libre.com>
To: Neil Armstrong <neil.armstrong@...aro.org>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Daniel Vetter <daniel@...ll.ch>
Cc: Jerome Brunet <jbrunet@...libre.com>,
	Kevin Hilman <khilman@...libre.com>,
	Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
	dri-devel@...ts.freedesktop.org,
	linux-amlogic@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] drm/meson: fix hdmi auxiliary system operation without display

CEC and ARC should work even when HDMI is not actively used for the
display but it is not the case with Amlogic HDMI.

This is important for devices such as sound bars which may use DSI
to display a UI and HDMI for CEC/ARC. A display is not required for these
functions

This patchset fixes the problem.

Jerome Brunet (2):
  drm/meson: dw-hdmi: power up phy on device init
  drm/meson: dw-hdmi: add bandgap setting for g12

 drivers/gpu/drm/meson/meson_dw_hdmi.c | 70 ++++++++++++---------------
 1 file changed, 31 insertions(+), 39 deletions(-)

-- 
2.43.0