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[2a01:cb00:8bd:2700:f54e:cdc9:d152:bb4f]) by smtp.gmail.com with ESMTPSA id 21sm3484734wme.6.2021.03.23.11.14.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 23 Mar 2021 11:14:29 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ZurC22z1J1Ck8IMbpKH5VToEe3ZGD8vbEOndO4vYk/M=; b=L1uQZdT2nxXw6hA2r1eVYObHVqQ+CLtezPNGjCYU1cxWF+5mYLk7UBe0xMW9HUZwsK oPERvbShcRlcjtxeOsHRTlmR7DTI7E1Y/b2qupRIaZCVk8hTMwUguX1kYzSzuR9kzRyf GXMgLTlSpvw0nDJDLe6W+ouO/NCLmoLHNX7jX+SuP5kgrxuM7dPtWi1iAB7uwiveIoip kwJZyN8Z9oXyqdYRN37yg47PoFK50741VqiAreJvTqGEJBROPkJoUxZ2UFuUNK6u2LW9 XNY1ODm2+QFP/gL9Zk/L3Lz/DQZkJ6iFUUXv2hsxqbg4KhNAjqEMwfLk5XqjqmmtVGkL eSOA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ZurC22z1J1Ck8IMbpKH5VToEe3ZGD8vbEOndO4vYk/M=; b=DBJ9mOFDxuS+tMhiLXEx3U5KlI/3tgiul1KSXjgnUknD6sXPc1AQ2L2jPenhL1cYJh yTEXkS5hd+62G6WcWDMzGGczg5hxHl9wGAox+LWlh1ba+iEzQYvppNOAncovy70M5e/j i2EkA15iuChXWEiaqm0ZZKgKdBfo0gzr2UknP1lrDWeRDaIrBtw/+fpD/xeInUBZChyW O29gDSGo3FzrYW93xN3hhsX/k3w7m9KK0eOMqt85tUi3D/Knjge280/PJFrCTl6X6MmS Du0Amf2xBwpkZ0hJIa6vo8n6xgnA/ldyjddXqyKafWwrcnwBtCgJq+F/vSaC5E4C0Exn 2spw== X-Gm-Message-State: AOAM530jUUkmUgQxrXgjoCdyfWbiJqDrSwFBe4lQUt6qLwUPuSal4nrm FX/YLoM0E4MXDX22HCRRXQk= X-Google-Smtp-Source: ABdhPJwcVZw5OZy1TmDPh5C68tqaqZmMqSdoghYIyXbzNsLYuyrYPpnrb/6vWEGeoKunLrWeC/hm/w== X-Received: by 2002:a1c:c206:: with SMTP id s6mr4495682wmf.77.1616523270258; Tue, 23 Mar 2021 11:14:30 -0700 (PDT) From: Adrien Grassein Cc: robert.foss@linaro.org, airlied@linux.ie, daniel@ffwll.ch, a.hajda@samsung.com, robh+dt@kernel.org, narmstrong@baylibre.com, Laurent.pinchart@ideasonboard.com, jonas@kwiboo.se, jernej.skrabec@siol.net, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Adrien Grassein , Rob Herring Subject: [PATCH v8 1/2] dt-bindings: display: bridge: Add documentation for LT8912B Date: Tue, 23 Mar 2021 19:14:22 +0100 Message-Id: <20210323181423.657926-2-adrien.grassein@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210323181423.657926-1-adrien.grassein@gmail.com> References: <20210323181423.657926-1-adrien.grassein@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" Lontium LT8912B is a DSI to HDMI bridge. Signed-off-by: Adrien Grassein Reviewed-by: Rob Herring --- .../display/bridge/lontium,lt8912b.yaml | 102 ++++++++++++++++++ MAINTAINERS | 5 + 2 files changed, 107 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontiu= m,lt8912b.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt891= 2b.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.= yaml new file mode 100644 index 000000000000..735d0233a7d6 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml @@ -0,0 +1,102 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912b.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT8912B MIPI to HDMI Bridge + +maintainers: + - Adrien Grassein + +description: | + The LT8912B is a bridge device which convert DSI to HDMI + +properties: + compatible: + enum: + - lontium,lt8912b + + reg: + maxItems: 1 + + reset-gpios: + maxItems: 1 + description: GPIO connected to active high RESET pin. + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: + Primary MIPI port for MIPI input + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + properties: + data-lanes: true + + required: + - data-lanes + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: | + HDMI port, should be connected to a node compatible with the + hdmi-connector binding. + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - reset-gpios + - ports + +additionalProperties: false + +examples: + - | + #include + + i2c4 { + #address-cells =3D <1>; + #size-cells =3D <0>; + + hdmi-bridge@48 { + compatible =3D "lontium,lt8912b"; + reg =3D <0x48>; + reset-gpios =3D <&max7323 0 GPIO_ACTIVE_LOW>; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + + hdmi_out_in: endpoint { + data-lanes =3D <0 1 2 3>; + remote-endpoint =3D <&mipi_dsi_out>; + }; + }; + + port@1 { + reg =3D <1>; + + endpoint { + remote-endpoint =3D <&hdmi_in>; + }; + }; + }; + }; + }; + +... diff --git a/MAINTAINERS b/MAINTAINERS index 8c44fd8fd85d..d9a125e5d295 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10526,6 +10526,11 @@ S: Maintained T: git git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid.git F: drivers/hid/hid-lg-g15.c =20 +LONTIUM LT8912B MIPI TO HDMI BRIDGE +M: Adrien Grassein +S: Maintained +F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml + LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) M: Sathya Prakash M: Sreekanth Reddy --=20 2.25.1 From nobody Fri Oct 18 04:19:51 2024 Delivered-To: importer2@patchew.org Received-SPF: pass (zohomail.com: domain of vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; 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Signed-off-by: Adrien Grassein Reported-by: kernel test robot Reviewed-by: Robert Foss --- MAINTAINERS | 1 + drivers/gpu/drm/bridge/Kconfig | 14 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/lontium-lt8912b.c | 765 +++++++++++++++++++++++ 4 files changed, 781 insertions(+) create mode 100644 drivers/gpu/drm/bridge/lontium-lt8912b.c diff --git a/MAINTAINERS b/MAINTAINERS index d9a125e5d295..6af083797947 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10530,6 +10530,7 @@ LONTIUM LT8912B MIPI TO HDMI BRIDGE M: Adrien Grassein S: Maintained F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912b.yaml +F: drivers/gpu/drm/bridge/lontium-lt8912b.c =20 LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) M: Sathya Prakash diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index e4110d6ca7b3..f2c5ec75d2f5 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -48,6 +48,20 @@ config DRM_DISPLAY_CONNECTOR on ARM-based platforms. Saying Y here when this driver is not needed will not cause any issue. =20 +config DRM_LONTIUM_LT8912B + tristate "Lontium LT8912B DSI/HDMI bridge" + depends on OF + select DRM_PANEL_BRIDGE + select DRM_KMS_HELPER + select REGMAP_I2C + help + Driver for Lontium LT8912B DSI to HDMI bridge + chip driver. + Please say Y if you have such hardware. + + Say M here if you want to support this hardware as a module. + The module will be named "lontium-lt8912b". + config DRM_LONTIUM_LT9611 tristate "Lontium LT9611 DSI/HDMI bridge" select SND_SOC_HDMI_CODEC if SND_SOC diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makef= ile index 86e7acc76f8d..756ce401aad3 100644 --- a/drivers/gpu/drm/bridge/Makefile +++ b/drivers/gpu/drm/bridge/Makefile @@ -2,6 +2,7 @@ obj-$(CONFIG_DRM_CDNS_DSI) +=3D cdns-dsi.o obj-$(CONFIG_DRM_CHRONTEL_CH7033) +=3D chrontel-ch7033.o obj-$(CONFIG_DRM_DISPLAY_CONNECTOR) +=3D display-connector.o +obj-$(CONFIG_DRM_LONTIUM_LT8912B) +=3D lontium-lt8912b.o obj-$(CONFIG_DRM_LONTIUM_LT9611) +=3D lontium-lt9611.o obj-$(CONFIG_DRM_LONTIUM_LT9611UXC) +=3D lontium-lt9611uxc.o obj-$(CONFIG_DRM_LVDS_CODEC) +=3D lvds-codec.o diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bri= dge/lontium-lt8912b.c new file mode 100644 index 000000000000..fd0ec1c84368 --- /dev/null +++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c @@ -0,0 +1,765 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (c) 2018, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +#include