From: Alexey Charkov <alchark@flipper.net>
To: Sandy Huang <hjc@rock-chips.com>, Heiko Stübner <heiko@sntech.de>,
Andy Yan <andy.yan@rock-chips.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Cristian Ciocaltea <cristian.ciocaltea@collabora.com>
Cc: dri-devel@lists.freedesktop.org,
linux-arm-kernel@lists.infradead.org,
linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org,
Alexey Charkov <alchark@flipper.net>
Subject: [PATCH 0/2] drm/rockchip: dw_hdmi_qp: Add support for HDMI overscan compensation
Date: Tue, 02 Jun 2026 21:00:38 +0400 [thread overview]
Message-ID: <20260602-hdmi-overscan-v1-0-31f71b817c80@flipper.net> (raw)
When using a TV as a display, output image may be cropped due to overscan.
Rockchip VOP2 supports post-composition scaling in hardware, which can be
used to compensate for the overscan.
This adds the necessary pixel margin fields to the CRTC state, and sets
them from the TV overscan property of the connector which is understood
by the userspace (tested with KWin's display configuration module).
Signed-off-by: Alexey Charkov <alchark@flipper.net>
---
Alexey Charkov (2):
drm/rockchip: vop2: honor TV margins from CRTC state for overscan compensation
drm/rockchip: dw_hdmi_qp: expose "overscan" property
drivers/gpu/drm/rockchip/dw_hdmi_qp-rockchip.c | 16 ++++++++++++++++
drivers/gpu/drm/rockchip/rockchip_drm_drv.h | 2 ++
drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 17 +++++++++++------
3 files changed, 29 insertions(+), 6 deletions(-)
---
base-commit: 08484c504b55a98bd100527fbe10a3caf55ff3ff
change-id: 20260602-hdmi-overscan-4f0d89bfd981
Best regards,
--
Alexey Charkov <alchark@flipper.net>
next reply other threads:[~2026-06-02 22:31 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-02 17:00 Alexey Charkov [this message]
2026-06-02 17:00 ` [PATCH 1/2] drm/rockchip: vop2: honor TV margins from CRTC state for overscan compensation Alexey Charkov
2026-06-04 2:35 ` Claude review: " Claude Code Review Bot
2026-06-02 17:00 ` [PATCH 2/2] drm/rockchip: dw_hdmi_qp: expose "overscan" property Alexey Charkov
2026-06-03 7:55 ` Maxime Ripard
2026-06-03 8:15 ` Alexey Charkov
2026-06-03 13:11 ` Andy Yan
2026-06-04 2:35 ` Claude review: " Claude Code Review Bot
2026-06-04 2:35 ` Claude review: drm/rockchip: dw_hdmi_qp: Add support for HDMI overscan compensation Claude Code Review Bot
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