From nobody Fri Sep 25 21:41:00 2026 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B3554F6481; Tue, 8 Sep 2026 10:02:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.194.8.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788861771; cv=none; b=HEqI526D0LKgJA94lRi1GL7R4hTcife0k7MUv2gMLod8L0h/sdHzLJehogUoABPw+9KE2Pard2bpP0kUf8OpiqsmVUagjHDzAS8vyWbxstVDT7xPEsQeSZDVMtrbmxSFTbRNwd2Ajjf3xXq5MN+a9YrUydFtUnh1p38ldm/ZwPA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788861771; c=relaxed/simple; bh=WU3qre6rJH7AApeSR09fJkyk1FXaIxkjlTD7ptpBd3o=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bZkN057cNQYvXLMYz5SwiUWc/sCpTHJ7GlJc5+TUY04oGREAHH5CCVkZxYJRUhmPAyGS8yoP5em1qmeDRHCRKXWK11x4LBMq6l/Hqkmz1NficIsZIHncWnErfzRwckHPhAM4j/hysVrAfSCg1/nwxGHqZzDxnfHol8yPXOkQ4vI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b=dlshf81+; arc=none smtp.client-ip=217.194.8.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b="dlshf81+" Received: from francesco-nb.corp.toradex.com (248.201.173.83.static.wline.lns.sme.cust.swisscom.ch [83.173.201.248]) by mail11.truemail.it (Postfix) with ESMTPA id BA7DB2037E; Tue, 8 Sep 2026 12:02:39 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1788861760; bh=V2TCIVHLFUgANDNWEbBVnC10C0FF0MGdtrz2Vu9b1xk=; h=From:To:Subject; b=dlshf81+8dGxY9ub4RsX410QT4OdtT7VMj5lG3Hdk+ZG3o/ngm01LaFuFB826Eo2l gSa2gp1yXwYmja5f5kqtZCFkSAwzvN8kPaUyC49R5zaBp+CaRX43GjCTxhYke7qSHh TEMuepx1zoP/Rj+vTyCiJJ+7hw2T5PiZuAZX9T+LJy1uTjeaM7djGVxbWnsK/lgtut uJPZD2VgFejbZMdoAEmwSKB5B7/y8aUbm9o0hfzEKZ8uRWtmnDEkjMm58tyDuTVdny Lne8pb+GzwUQHTf4E0yEXBr1RuYIdKml7w4CvKAGWeRkTcN9ne9ucTT7W2VjtF+Fgy OAUCESzA1631Q== From: Francesco Dolcini To: Francesco Dolcini , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Francesco Dolcini , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH v1 1/3] dt-bindings: display: bridge: Add THine THC63LVD827 Date: Tue, 8 Sep 2026 12:02:25 +0200 Message-ID: <20260908100230.83796-2-francesco@dolcini.it> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260908100230.83796-1-francesco@dolcini.it> References: <20260908100230.83796-1-francesco@dolcini.it> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Francesco Dolcini Add THine THC63LVD827 DPI to LVDS encoder. The THC63LVD827 is a simple DPI to LVDS encoder that can be configured with input pins. Link: https://www.thine.co.jp/en/products/detail/THC63LVD827.html Signed-off-by: Francesco Dolcini --- .../display/bridge/thine,thc63lvd827.yaml | 126 ++++++++++++++++++ MAINTAINERS | 5 + 2 files changed, 131 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/thine,= thc63lvd827.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/thine,thc63lv= d827.yaml b/Documentation/devicetree/bindings/display/bridge/thine,thc63lvd= 827.yaml new file mode 100644 index 000000000000..ead50802e11e --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/thine,thc63lvd827.ya= ml @@ -0,0 +1,126 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/thine,thc63lvd827.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: THine THC63LVD827 DPI to LVDS encoder + +maintainers: + - Francesco Dolcini + +description: | + The THC63LVD827 converts a 24-bit parallel RGB interface plus HSYNC, + VSYNC and data-enable to single-link or dual-link LVDS. + + The LVDS output data mapping is configured using the MAP and 6B/8B input= s, + that can be controlled by GPIOs. + + The LVDS output link mode (single/dual) is configured using the MODE inp= ut. + + The parallel interface pixel clock sample polarity is configurable with = the + R/F input strap option. + +properties: + compatible: + const: thine,thc63lvd827 + + map-gpios: + maxItems: 1 + description: + GPIO connected to the MAP input. A high level selects Mapping Mode 1 + and a low level selects Mapping Mode 2. + + mode-gpios: + maxItems: 1 + description: + GPIO connected to the MODE input. A high level selects single-link + LVDS output and a low level selects dual-link LVDS output. + + b6b8-gpios: + maxItems: 1 + description: + GPIO connected to the 6B/8B input. A high level selects 6-bit (21-bi= t) + mode and a low level selects 8-bit (27-bit) mode. + + powerdown-gpios: + maxItems: 1 + description: + GPIO connected to the active-low /PDWN input. A high level selects + normal operation and a low level power down the chip. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Parallel RGB input + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml + unevaluatedProperties: false + + properties: + pclk-sample: + description: + Sample data on falling (0) or rising (1) edges of the pi= xel + clock signal. + enum: [ 0, 1 ] + default: 0 + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: LVDS output 1st link, used in single- and dual-link m= ode. + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: Optional LVDS output 2nd link, for dual-link mode. + + required: + - port@0 + - port@1 + +required: + - compatible + - ports + +additionalProperties: false + +examples: + - | + #include + + lvds-encoder { + compatible =3D "thine,thc63lvd827"; + + map-gpios =3D <&gpio4 10 GPIO_ACTIVE_HIGH>; + mode-gpios =3D <&gpio4 11 GPIO_ACTIVE_HIGH>; + powerdown-gpios =3D <&gpio4 12 GPIO_ACTIVE_LOW>; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + endpoint { + pclk-sample =3D <1>; + remote-endpoint =3D <&dpi_out>; + }; + }; + + port@1 { + reg =3D <1>; + + endpoint { + remote-endpoint =3D <&lvds_display_in>; + }; + }; + }; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 6215fcb07770..0b5a25a35367 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8580,6 +8580,11 @@ F: Documentation/devicetree/bindings/display/rockchi= p/rockchip,dw-dp.yaml F: drivers/gpu/drm/bridge/synopsys/dw-dp.c F: include/drm/bridge/dw_dp.h =20 +DRM DRIVER FOR THINE THC63LVD827 DPI TO LVDS BRIDGE +M: Francesco Dolcini +S: Maintained +F: Documentation/devicetree/bindings/display/bridge/thine,thc63lvd827.yaml + DRM DRIVER FOR TI DLPC3433 MIPI DSI TO DMD BRIDGE M: Jagan Teki S: Maintained --=20 2.47.3 From nobody Fri Sep 25 21:41:00 2026 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B09D4F30FE; 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charset="utf-8" From: Francesco Dolcini Add THC63LVD827 DPI to LVDS bridge driver. The driver supports configuring the LVDS data mapping. As of now only single link LVDS is supported, dual link support can be added if/when needed. Signed-off-by: Francesco Dolcini --- MAINTAINERS | 1 + drivers/gpu/drm/bridge/Kconfig | 11 ++ drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/thc63lvd827.c | 193 +++++++++++++++++++++++++++ 4 files changed, 206 insertions(+) create mode 100644 drivers/gpu/drm/bridge/thc63lvd827.c diff --git a/MAINTAINERS b/MAINTAINERS index 0b5a25a35367..ee24b15b26d3 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8584,6 +8584,7 @@ DRM DRIVER FOR THINE THC63LVD827 DPI TO LVDS BRIDGE M: Francesco Dolcini S: Maintained F: Documentation/devicetree/bindings/display/bridge/thine,thc63lvd827.yaml +F: drivers/gpu/drm/bridge/thc63lvd827.c =20 DRM DRIVER FOR TI DLPC3433 MIPI DSI TO DMD BRIDGE M: Jagan Teki diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index 4a57d49b4c6d..70ebc6b50e59 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -365,6 +365,17 @@ config DRM_THINE_THC63LVD1024 help Thine THC63LVD1024 LVDS/parallel converter driver. =20 +config DRM_THINE_THC63LVD827 + tristate "THine THC63LVD827 DPI/LVDS bridge" + depends on OF + select DRM_KMS_HELPER + help + Enable support for the THine THC63LVD827 DPI to LVDS bridge. + + The device converts a parallel RGB display interface to an LVDS + output for connection to LVDS display panels. + The bridge supports configurable JEIDA and VESA LVDS data mapping. + config DRM_THEAD_TH1520_DW_HDMI tristate "T-Head TH1520 DesignWare HDMI bridge" depends on OF diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makef= ile index 15cc821d85b7..5d578f7112c8 100644 --- a/drivers/gpu/drm/bridge/Makefile +++ b/drivers/gpu/drm/bridge/Makefile @@ -33,6 +33,7 @@ obj-$(CONFIG_DRM_SIMPLE_BRIDGE) +=3D simple-bridge.o obj-$(CONFIG_DRM_SOLOMON_SSD2825) +=3D ssd2825.o obj-$(CONFIG_DRM_THEAD_TH1520_DW_HDMI) +=3D th1520-dw-hdmi.o obj-$(CONFIG_DRM_THINE_THC63LVD1024) +=3D thc63lvd1024.o +obj-$(CONFIG_DRM_THINE_THC63LVD827) +=3D thc63lvd827.o obj-$(CONFIG_DRM_TOSHIBA_TC358762) +=3D tc358762.o obj-$(CONFIG_DRM_TOSHIBA_TC358764) +=3D tc358764.o obj-$(CONFIG_DRM_TOSHIBA_TC358767) +=3D tc358767.o diff --git a/drivers/gpu/drm/bridge/thc63lvd827.c b/drivers/gpu/drm/bridge/= thc63lvd827.c new file mode 100644 index 000000000000..d3c7e0fff126 --- /dev/null +++ b/drivers/gpu/drm/bridge/thc63lvd827.c @@ -0,0 +1,193 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) Toradex + * Author: Francesco Dolcini + */ + +#include +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +struct thc63lvd827 { + struct device *dev; + struct drm_bridge bridge; + struct drm_bridge *next_bridge; + + struct gpio_desc *map_gpio; + struct gpio_desc *mode_gpio; + struct gpio_desc *b6b8_gpio; + struct gpio_desc *pd_gpio; + + struct drm_bridge_timings timings; +}; + +static struct thc63lvd827 *bridge_to_thc63lvd827(struct drm_bridge *bridge) +{ + return container_of(bridge, struct thc63lvd827, bridge); +} + +static int thc63lvd827_attach(struct drm_bridge *bridge, + struct drm_encoder *encoder, + enum drm_bridge_attach_flags flags) +{ + struct thc63lvd827 *thc63lvd827 =3D bridge_to_thc63lvd827(bridge); + + return drm_bridge_attach(encoder, thc63lvd827->next_bridge, bridge, flags= ); +} + +static u32 * +thc63lvd827_atomic_get_input_bus_fmts(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state, + u32 output_fmt, + unsigned int *num_input_fmts) +{ + u32 *input_fmts; + + *num_input_fmts =3D 0; + + input_fmts =3D kmalloc_obj(*input_fmts); + if (!input_fmts) + return NULL; + + input_fmts[0] =3D MEDIA_BUS_FMT_RGB888_1X24; + *num_input_fmts =3D 1; + + return input_fmts; +} + +static void thc63lvd827_atomic_pre_enable(struct drm_bridge *bridge, + struct drm_atomic_commit *state) +{ + struct thc63lvd827 *thc63lvd827 =3D bridge_to_thc63lvd827(bridge); + const struct drm_bridge_state *bridge_state; + int b6b8_val, map_val; + + bridge_state =3D drm_atomic_get_new_bridge_state(state, bridge); + + /* + * 6B/8B: H =3D 6-bit (21-bit) mode, L =3D 8-bit (27-bit) mode. + * MAP: H =3D Mapping Mode 1, L =3D Mapping Mode 2. + */ + switch (bridge_state->output_bus_cfg.format) { + case MEDIA_BUS_FMT_RGB666_1X7X3_SPWG: + b6b8_val =3D 1; + map_val =3D 1; + break; + case MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA: + b6b8_val =3D 0; + map_val =3D 1; + break; + default: + case MEDIA_BUS_FMT_RGB888_1X7X4_SPWG: + b6b8_val =3D 0; + map_val =3D 0; + break; + } + + gpiod_set_value_cansleep(thc63lvd827->b6b8_gpio, b6b8_val); + gpiod_set_value_cansleep(thc63lvd827->map_gpio, map_val); + gpiod_set_value_cansleep(thc63lvd827->pd_gpio, 0); +} + +static void thc63lvd827_atomic_post_disable(struct drm_bridge *bridge, + struct drm_atomic_commit *state) +{ + struct thc63lvd827 *thc63lvd827 =3D bridge_to_thc63lvd827(bridge); + + gpiod_set_value_cansleep(thc63lvd827->pd_gpio, 1); +} + +static const struct drm_bridge_funcs thc63lvd827_bridge_funcs =3D { + .attach =3D thc63lvd827_attach, + .atomic_pre_enable =3D thc63lvd827_atomic_pre_enable, + .atomic_post_disable =3D thc63lvd827_atomic_post_disable, + .atomic_get_input_bus_fmts =3D thc63lvd827_atomic_get_input_bus_fmts, + .atomic_duplicate_state =3D drm_atomic_helper_bridge_duplicate_state, + .atomic_destroy_state =3D drm_atomic_helper_bridge_destroy_state, + .atomic_create_state =3D drm_atomic_helper_bridge_create_state, +}; + +static int thc63lvd827_probe(struct platform_device *pdev) +{ + struct device *dev =3D &pdev->dev; + struct thc63lvd827 *thc63lvd827; + struct device_node *ep; + u32 pclk_sample =3D 0; + + thc63lvd827 =3D devm_drm_bridge_alloc(dev, struct thc63lvd827, bridge, + &thc63lvd827_bridge_funcs); + if (IS_ERR(thc63lvd827)) + return PTR_ERR(thc63lvd827); + + thc63lvd827->dev =3D dev; + + thc63lvd827->map_gpio =3D devm_gpiod_get_optional(dev, "map", GPIOD_OUT_L= OW); + if (IS_ERR(thc63lvd827->map_gpio)) + return dev_err_probe(dev, PTR_ERR(thc63lvd827->map_gpio), + "failed to get MAP GPIO\n"); + + thc63lvd827->mode_gpio =3D devm_gpiod_get_optional(dev, "mode", GPIOD_OUT= _HIGH); + if (IS_ERR(thc63lvd827->mode_gpio)) + return dev_err_probe(dev, PTR_ERR(thc63lvd827->mode_gpio), + "failed to get MODE GPIO\n"); + + thc63lvd827->b6b8_gpio =3D devm_gpiod_get_optional(dev, "b6b8", GPIOD_OUT= _LOW); + if (IS_ERR(thc63lvd827->b6b8_gpio)) + return dev_err_probe(dev, PTR_ERR(thc63lvd827->b6b8_gpio), + "failed to get 6B/8B GPIO\n"); + + thc63lvd827->pd_gpio =3D devm_gpiod_get_optional(dev, "powerdown", GPIOD_= OUT_HIGH); + if (IS_ERR(thc63lvd827->pd_gpio)) + return dev_err_probe(dev, PTR_ERR(thc63lvd827->pd_gpio), + "failed to get /PDWN GPIO\n"); + + thc63lvd827->next_bridge =3D devm_drm_of_get_bridge(dev, dev->of_node, 1,= 0); + if (IS_ERR(thc63lvd827->next_bridge)) + return dev_err_probe(dev, PTR_ERR(thc63lvd827->next_bridge), + "failed to get downstream bridge\n"); + + ep =3D of_graph_get_endpoint_by_regs(dev->of_node, 0, 0); + of_property_read_u32(ep, "pclk-sample", &pclk_sample); + of_node_put(ep); + + if (pclk_sample =3D=3D 1) + thc63lvd827->timings.input_bus_flags =3D DRM_BUS_FLAG_PIXDATA_SAMPLE_POS= EDGE; + else + thc63lvd827->timings.input_bus_flags =3D DRM_BUS_FLAG_PIXDATA_SAMPLE_NEG= EDGE; + + thc63lvd827->bridge.of_node =3D dev->of_node; + thc63lvd827->bridge.timings =3D &thc63lvd827->timings; + thc63lvd827->bridge.type =3D DRM_MODE_CONNECTOR_LVDS; + + platform_set_drvdata(pdev, thc63lvd827); + + return devm_drm_bridge_add(dev, &thc63lvd827->bridge); +} + +static const struct of_device_id thc63lvd827_of_match[] =3D { + { .compatible =3D "thine,thc63lvd827" }, + { } +}; +MODULE_DEVICE_TABLE(of, thc63lvd827_of_match); + +static struct platform_driver thc63lvd827_driver =3D { + .probe =3D thc63lvd827_probe, + .driver =3D { + .name =3D "thc63lvd827", + .of_match_table =3D thc63lvd827_of_match, + }, +}; +module_platform_driver(thc63lvd827_driver); + +MODULE_DESCRIPTION("THine THC63LVD827 DPI to LVDS bridge driver"); +MODULE_LICENSE("GPL"); --=20 2.47.3 From nobody Fri Sep 25 21:41:00 2026 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 150C3509F18; Tue, 8 Sep 2026 10:02:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.194.8.81 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788861773; cv=none; b=DsQOuf0lceGeaBNXgzTH+zrSuE6DVwBEmmD1caemX95ktQWCvmdU2YL6CM9Wk7mIlM/vzYACx4PUuZY3Xi3REvmzYvTJsnL6M7XKO+knQu+K5TQHfPcI3WdBieNNmWmbHcx/ZrJZQplZfOp3d24Pve0d8LZxQSExneoxwyWJU7s= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788861773; c=relaxed/simple; bh=fU6IyVGeAZ2/0Aflv+2bdlGrk2LbMMDJUGa7dvmI7Xw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; 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a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1788861763; bh=MCbiA6d2rt3S8lOdzp5UrMVswALZKd4o8wNqLwS4zQI=; h=From:To:Subject; b=RS5h5kpti2SyYd5yW2ROAgvenmgN5O/dVg9BxwIRiwseTW+g37UFGKhvaQJMQ3OGA coO3PpehTRRb//aoN4TRCWJxJ/wxobkSxiP79EhKr5uVOLs3wLTOyJhb4rUmWKMrTL st1RbLQbfy1uJ9quwNKNEFzA9UoJ+/XMV6IFd8d+gd45aq7BhW5MYfRfmCw0j1/LZx 1YLpv6ynhzsiYvzM5Ypp6UmTmppohGvGjGAoOxzBEGPfWTaaXiCtN1aN7qZSZzZedx W9b2y40pXHopN6KKpovjWS7fhw78NpMmZJH2qGI+gUJiFWYmJ1dHU++nBRnxr6PeHe 4/B3TMn+pUzkQ== From: Francesco Dolcini To: Francesco Dolcini , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Luca Ceresoli , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Frank Li , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam Cc: Francesco Dolcini , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org Subject: [PATCH v1 3/3] ARM: dts: imx7d-colibri-emmc: Add Toradex Capacitive Touch Display 10" LVDS Date: Tue, 8 Sep 2026 12:02:27 +0200 Message-ID: <20260908100230.83796-4-francesco@dolcini.it> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260908100230.83796-1-francesco@dolcini.it> References: <20260908100230.83796-1-francesco@dolcini.it> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Francesco Dolcini Add a device tree overlay for the Toradex Capacitive Touch Display 10.1" LVDS connected via a DPI to LVDS on Iris carrier board. The panel is a LogicTechno LT170410-2WHC 10.1" WXGA IPS LCD and the touch input is provided by an Atmel MaxTouch capacitive touch controller. The overlay is also combined with the Iris v2 carrier board device tree to provide a ready-to-use DTB. Link: https://developer.toradex.com/hardware/accessories/displays/capacitiv= e-touch-display-101inch-lvds Signed-off-by: Francesco Dolcini --- this is based on https://lore.kernel.org/all/20260901124921.78635-1-frances= co@dolcini.it/ --- arch/arm/boot/dts/nxp/imx/Makefile | 6 ++ ...emmc-iris-panel-cap-touch-10inch-lvds.dtso | 92 +++++++++++++++++++ 2 files changed, 98 insertions(+) create mode 100644 arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-iris-panel= -cap-touch-10inch-lvds.dtso diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx= /Makefile index d1272104ef27..b9456e7e5310 100644 --- a/arch/arm/boot/dts/nxp/imx/Makefile +++ b/arch/arm/boot/dts/nxp/imx/Makefile @@ -424,6 +424,10 @@ imx7d-colibri-emmc-aster-panel-cap-touch-7inch-paralle= l-dtbs :=3D \ imx7d-colibri-emmc-aster.dtb \ imx7d-colibri-emmc-panel-cap-touch-7inch-parallel.dtbo =20 +imx7d-colibri-emmc-iris-v2-panel-cap-touch-10inch-lvds-dtbs :=3D \ + imx7d-colibri-emmc-iris-v2.dtb \ + imx7d-colibri-emmc-iris-panel-cap-touch-10inch-lvds.dtbo + imx7d-colibri-emmc-iris-v2-panel-cap-touch-7inch-parallel-dtbs :=3D \ imx7d-colibri-emmc-iris-v2.dtb \ imx7d-colibri-emmc-panel-cap-touch-7inch-parallel.dtbo @@ -459,8 +463,10 @@ dtb-$(CONFIG_SOC_IMX7D) +=3D \ imx7d-colibri-emmc-aster-panel-cap-touch-7inch-parallel.dtb \ imx7d-colibri-emmc-aster-vga.dtb \ imx7d-colibri-emmc-iris.dtb \ + imx7d-colibri-emmc-iris-panel-cap-touch-10inch-lvds.dtbo \ imx7d-colibri-emmc-iris-vga.dtb \ imx7d-colibri-emmc-iris-v2.dtb \ + imx7d-colibri-emmc-iris-v2-panel-cap-touch-10inch-lvds.dtb \ imx7d-colibri-emmc-iris-v2-panel-cap-touch-7inch-parallel.dtb \ imx7d-colibri-emmc-iris-v2-vga.dtb \ imx7d-colibri-emmc-eval-v3.dtb \ diff --git a/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-iris-panel-cap-to= uch-10inch-lvds.dtso b/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-iris-pa= nel-cap-touch-10inch-lvds.dtso new file mode 100644 index 000000000000..ad0f37c71708 --- /dev/null +++ b/arch/arm/boot/dts/nxp/imx/imx7d-colibri-emmc-iris-panel-cap-touch-10i= nch-lvds.dtso @@ -0,0 +1,92 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/* + * Copyright (c) Toradex + * + * Toradex Capacitive Touch Display 10.1" LVDS + * + * Toradex Capacitive Touch Display 10.1" on Iris v2 carrier board X7 / X5 + * connectors through on-carrier LVDS transmitter + * + * https://developer.toradex.com/hardware/accessories/displays/capacitive-= touch-display-101inch-lvds + * https://www.toradex.com/accessories/capacitive-touch-display-10.1-inch-= lvds + * https://developer.toradex.com/hardware/colibri-som-family/carrier-board= s/iris-carrier-board/ + * https://www.toradex.com/products/carrier-board/iris-carrier-board + * https://docs.toradex.com/108421-colibri_arm_iris_carrier_board_datashee= t.pdf + */ + +/dts-v1/; +/plugin/; + +#include +#include + +&{/} { + lvds-encoder { + compatible =3D "thine,thc63lvd827"; + pinctrl-names =3D "default"; + pinctrl-0 =3D <&pinctrl_lvds_transceiver>; + b6b8-gpios =3D <&gpio7 2 GPIO_ACTIVE_HIGH>; + map-gpios =3D <&gpio2 13 GPIO_ACTIVE_HIGH>; + mode-gpios =3D <&gpio7 3 GPIO_ACTIVE_HIGH>; + powerdown-gpios =3D <&gpio7 11 GPIO_ACTIVE_LOW>; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + lvds_bridge_in: endpoint { + pclk-sample =3D <1>; + remote-endpoint =3D <&lcdif_out>; + }; + }; + + port@1 { + reg =3D <1>; + + lvds_bridge_out: endpoint { + remote-endpoint =3D <&lvds_panel_in>; + }; + }; + }; + }; + + lvds-panel { + compatible =3D "logictechno,lt170410-2whc"; + backlight =3D <&backlight>; + power-supply =3D <®_3v3>; + + port { + lvds_panel_in: endpoint { + remote-endpoint =3D <&lvds_bridge_out>; + }; + }; + }; +}; + +&atmel_mxt_ts { + pinctrl-0 =3D <&pinctrl_atmel_connector>; + /* SODIMM 107 / TOUCH_INT# */ + interrupt-parent =3D <&gpio2>; + interrupts =3D <15 IRQ_TYPE_EDGE_FALLING>; + /* SODIMM 106 / TOUCH_RST# */ + reset-gpios =3D <&gpio2 28 GPIO_ACTIVE_LOW>; + + status =3D "okay"; +}; + +&backlight { + status =3D "okay"; +}; + +&lcdif { + status =3D "okay"; + + port { + lcdif_out: endpoint { + remote-endpoint =3D <&lvds_bridge_in>; + }; + }; +}; --=20 2.47.3