| From: |
| Biju <biju.das.au-AT-gmail.com> |
| To: |
| Andrzej Hajda <andrzej.hajda-AT-intel.com>, Neil Armstrong <neil.armstrong-AT-linaro.org>, Robert Foss <rfoss-AT-kernel.org>, David Airlie <airlied-AT-gmail.com>, Simona Vetter <simona-AT-ffwll.ch>, Philipp Zabel <p.zabel-AT-pengutronix.de>, Maarten Lankhorst <maarten.lankhorst-AT-linux.intel.com>, Maxime Ripard <mripard-AT-kernel.org>, Thomas Zimmermann <tzimmermann-AT-suse.de>, Rob Herring <robh-AT-kernel.org>, Krzysztof Kozlowski <krzk+dt-AT-kernel.org>, Conor Dooley <conor+dt-AT-kernel.org>, Geert Uytterhoeven <geert+renesas-AT-glider.be>, Magnus Damm <magnus.damm-AT-gmail.com> |
| Subject: |
| [PATCH v2 0/2] Add support for Renesas RZ/G3L LVDS encoder |
| Date: |
| Sun, 24 May 2026 20:44:49 +0100 |
| Message-ID: |
| <20260524194457.479681-1-biju.das.jz@bp.renesas.com> |
| Cc: |
| Biju Das <biju.das.jz-AT-bp.renesas.com>, Laurent Pinchart <Laurent.pinchart-AT-ideasonboard.com>, Jonas Karlman <jonas-AT-kwiboo.se>, Jernej Skrabec <jernej.skrabec-AT-gmail.com>, Luca Ceresoli <luca.ceresoli-AT-bootlin.com>, Tommaso Merciai <tommaso.merciai.xr-AT-bp.renesas.com>, dri-devel-AT-lists.freedesktop.org, devicetree-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, linux-renesas-soc-AT-vger.kernel.org, Prabhakar Mahadev Lad <prabhakar.mahadev-lad.rj-AT-bp.renesas.com>, Biju Das <biju.das.au-AT-gmail.com> |
| Archive-link: |
| Article |
From: Biju Das <biju.das.jz@bp.renesas.com>
Add support for the RZ/G3L LVDS encoder driver. It operates in single-link
mode with 4 lanes (Data) + 1 lane (Clock) and supports pixel clock rates
from 25 to 87 MHz. The LVDS module cannot be used at the same time as
MIPI-DSI. However, LVDS and the DSI interface share a peripheral clock and
the MIPI_DSI_PRESET_N reset signal. Also, the MIPI_DSI_CMN_RSTB and
MIPI_DSI_ARESET_N reset signals must be asserted before using the LVDS
module.
v2->v3:
* Dropped patch#1 as it is accepted.
* Replace drm_atomic_state with drm_atomic_commit in
rzg3l_lvds_atomic_{en,dis}able().
* Drop local variable ret and dev_err() messages in
rzg3l_lvds_atomic_enable(); use WARN_ON() instead to
capture unexpected failures since atomic_enable should not fail.
* Drop local variable next_bridge from rzg3l_lvds_probe().
v1->v2:
* Collected the tags for binding patches.
* Dropped unused function rzg3l_lvds_is_connected() and removed the
corresponding header file rzg3l_lvds.h
* Dropped next_bridge from struct rzg3l_lvds instead using bridge's
next_bridge.
* Replaced pm_runtime_resume_and_get()->pm_runtime_get_sync() as
atomic_enable doesn't fail and for each enable there always will be an
atomic_disable() call.
* Started using DEFINE_RUNTIME_DEV_PM_OPS for PM callback.
* Replaced rzg3l_lvds_parse_dt() with devm_drm_of_get_bridge() in probe()
* Started using reset_control_bulk_*() in rzg3l_lvds_pm_runtime_{suspend,
resume}().
Biju Das (2):
dt-bindings: display: bridge: Document Renesas RZ/G3L LVDS encoder
drm: renesas: rz-du: Add support for RZ/G3L LVDS encoder
.../bridge/renesas,r9a08g046-lvds.yaml | 128 ++++++++
drivers/gpu/drm/renesas/rz-du/Kconfig | 13 +
drivers/gpu/drm/renesas/rz-du/Makefile | 1 +
drivers/gpu/drm/renesas/rz-du/rzg3l_lvds.c | 277 ++++++++++++++++++
.../gpu/drm/renesas/rz-du/rzg3l_lvds_regs.h | 26 ++
5 files changed, 445 insertions(+)
create mode 100644 Documentation/devicetree/bindings/display/bridge/renesas,r9a08g046-lvds.yaml
create mode 100644 drivers/gpu/drm/renesas/rz-du/rzg3l_lvds.c
create mode 100644 drivers/gpu/drm/renesas/rz-du/rzg3l_lvds_regs.h
--
2.43.0
