linux-kernel - [PATCH 0/2] drm/rockchip: vop2: two fixes from working on DSI enablement

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Date: Thu, 25 Apr 2024 21:55:04 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: heiko@...ech.de
Cc: quentin.schulz@...obroma-systems.com,
	hjc@...k-chips.com,
	andy.yan@...k-chips.com,
	dri-devel@...ts.freedesktop.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] drm/rockchip: vop2: two fixes from working on DSI enablement

While working on enabling DSI support on rk3588 I stumbled across the issue
of the display staying black while both the vop2 and dsi drivers were
claiming to be running just fine.

After a bit of checking I found that I got DSI output on VP3 when HDMI
on VP0 was at least associated in the DTS, but not without.

Andy's patch [0] helped and is definitly necessary, but did not fix the
problem completely. The missing thing was that VP3 is rk3588-specific
(rk3568 only has 3 video-ports, not 4 like rk3588) and the layers of
VP3 never got configured.

Patch2 fixes this.

[0] https://lore.kernel.org/dri-devel/20240422101905.32703-2-andyshrk@163.com/

Heiko Stuebner (2):
  drm/rockchip: vop2: fix rk3588 dp+dsi maxclk verification
  drm/rockchip: vop2: configure layers for vp3 on rk3588

 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 16 ++++++++++++++--
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.h |  1 +
 2 files changed, 15 insertions(+), 2 deletions(-)

-- 
2.39.2