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[2a01:cb00:8bd:2700:341b:9a84:37bd:ab47]) by smtp.gmail.com with ESMTPSA id l1sm19522478wmq.17.2021.02.14.15.29.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Feb 2021 15:29:38 -0800 (PST) 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=aw8ty2wXr4VPQmYPtx+i4SbemanGMqMFf7qDwvUHAcY=; b=kyS/zjLIaA4Xyi31w6fC/LWgjEjk0CbM0smn7HRs6oUAXeQ0WC7GU0lXoENHK8JOki T+4jBG8cH2692tBdMIHDZTZhi9trtAJAYLMSFRTHMZ+XwQPPPeNk29XSciRz8/BsSePr DGgSgv8tC55WYSIVmQUTEnzeyech5tNLT19jy6+hLIZ+Tg2Ev3RYNFipNlD3clbJbP4K CvRkN6qM1Q7lET3NZe0/zS87Qz9u7hB24kuaaY3hF5SKC9eyoGhy3IELgbT0iBmw483N 8jW4KCbNB6DWooOeA5rVC8/5UwqXSdEFAOBUNUWh1KioodvoXCinS2bRPuDp31Ng3928 AsfA== 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=aw8ty2wXr4VPQmYPtx+i4SbemanGMqMFf7qDwvUHAcY=; b=WfJYydRCkhyDsGTTF+t2HjSfF26CJ4dxtzXbmcwx/YZb8m5vFMhG6HzecD67lNM7Af 0d+zsrAL2aI0qmljaO64NSJ6wNP88+9oLSnlAdUIbz2dbANrmwOXkP00Z1h94W1uLO9N lTV+e7xr/ujcUVDpEpKzEp4iIuW3YLNhPvkAiygrN77dZe300hkWs5Hy62578uBTFtSO jkgu9e7kuboAePw/YLMySVEzjJXgoUU+xegv2rYCAqNyz+N8uySBWEYltIFe4jsbNoPE hOnbOx92NKwTHm3xbTAEGRI+V1+ezIx7iiSh8Citz8q3TfhlIarAOe+bwB7V+RvY3daW cs+g== X-Gm-Message-State: AOAM530WgPMXcIQJva4o2HaWeWjup9SbzoNZZrlLkKtgbd8V3Hq3cNHZ n2S4q+aFtBhAxhVmj36cH7c= X-Google-Smtp-Source: ABdhPJzkgpc3l414YEG22Lt1GZcwXH8hUIy+zVLw+PsXB2EXZtYTMTEM9HWRlCLBL9gmB1MwyepC5Q== X-Received: by 2002:adf:e411:: with SMTP id g17mr16712145wrm.250.1613345378428; Sun, 14 Feb 2021 15:29:38 -0800 (PST) From: Adrien Grassein Cc: 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 Subject: [PATCH v2 1/2] dt-bindings: display: bridge: Add documentation for LT8912 Date: Mon, 15 Feb 2021 00:29:03 +0100 Message-Id: <20210214232904.1142706-2-adrien.grassein@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210214232904.1142706-1-adrien.grassein@gmail.com> References: <20210214232904.1142706-1-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 LT8912 is a DSI to HDMI bridge. Signed-off-by: Adrien Grassein --- .../display/bridge/lontium,lt8912.yaml | 102 ++++++++++++++++++ MAINTAINERS | 5 + 2 files changed, 107 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/lontiu= m,lt8912.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/lontium,lt891= 2.yaml b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.ya= ml new file mode 100644 index 000000000000..1e5a2ad5eb47 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml @@ -0,0 +1,102 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/lontium,lt8912.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lontium LT8912 MIPI to HDMI Bridge + +maintainers: + - Adrien Grassein + +description: | + The LT8912 is a bridge device which convert DSI to HDMI + +properties: + compatible: + enum: + - lontium,lt8912 + + 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,lt8912"; + 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 c38651ca59a5..f010b485aa7c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10440,6 +10440,11 @@ 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 LT8912 MIPI TO HDMI BRIDGE +M: Adrien Grassein +S: Maintained +F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml + LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) M: Sathya Prakash M: Sreekanth Reddy --=20 2.25.1 From nobody Fri May 17 07:36:35 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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[2a01:cb00:8bd:2700:341b:9a84:37bd:ab47]) by smtp.gmail.com with ESMTPSA id l1sm19522478wmq.17.2021.02.14.15.29.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 14 Feb 2021 15:29:38 -0800 (PST) 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=HLzZbG/n6LRdmbqEsjbdO0ubFYXmV0nnc9C1Av36nuw=; b=o2xM9MKB1hE/KVyKT2bjBBUEG/cvJlhfcBfpZmGmueqXE5t65oexFYxVkXE+Tiin4f XY/ddiviIwWwl+nKBc4YfcU9TgK1Lqej5qLAWn3DNIL0tvwuZqKWt8BVmWs3NpP4YKL4 BCdCdbRD+si1F2n3re5ZUfsEBVffR3WnH3r1/si3vuk5qFnrUDQTHKB1Z4VWKeXqNBCc 7Umo7wUsFs5PXaALTtEuW0mLEPoA4qvchRV4sN8cprRrfUgNmCA0OkIqnyug+Y3H2inC NvX+uveJ9DE/TSTVRdKs9aXYlDvyRySjvGlIdRq17baMg9RI527zzxHM+DiZZmRlUhau NYig== 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=HLzZbG/n6LRdmbqEsjbdO0ubFYXmV0nnc9C1Av36nuw=; b=XSRunOAV14dHs0Q5fAAINYY6wRB5OnFMEJmEbm/bfNbNv5+jAVZ68UTn+gPFTiBRVg cXnp/83r8BDDkgloNME81sKGNisSVhuSHWw7nxorit8BiwufKkyoAz9vLdmezBr2rJap tVB2mNr0+/frY0LpzOtjUfF2us+Io5ks5SclemepMDs/yaSWXhKIo4blvT3ZX2ZTEm3e 2T86XPrN0MzXteVzCmwX+Zfe0YyvWUJ28Wu75XYsZIlKkBQ62EM9PLI9gagQ1O+9U43/ du4mgmkn2dim86gVr8X3Ev404qXnefwJvPHuCMye4L9WoFW8Wlq0w/FqVtpFm8B4+mZo 2myQ== X-Gm-Message-State: AOAM531tiEUQhKZcG5BeYlSXU/BmTC+roaEP/oiZhLIWC1UF2V/rSAmF REc/yeQFk4pepqatXP7WwA4= X-Google-Smtp-Source: ABdhPJy5T4gn+1unjIicofP1RFwKiIuIfzm56yNnTbAhxUrW0/NBwPkHBSUEFBcHCZpKC9iB3Ib/Aw== X-Received: by 2002:a1c:220a:: with SMTP id i10mr11548905wmi.102.1613345379189; Sun, 14 Feb 2021 15:29:39 -0800 (PST) From: Adrien Grassein Cc: 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 Subject: [PATCH v2 2/2] drm/bridge: Introduce LT8912 DSI to HDMI bridge Date: Mon, 15 Feb 2021 00:29:04 +0100 Message-Id: <20210214232904.1142706-3-adrien.grassein@gmail.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210214232904.1142706-1-adrien.grassein@gmail.com> References: <20210214232904.1142706-1-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 Lt8912 is a DSI to HDMI bridge. Signed-off-by: Adrien Grassein --- MAINTAINERS | 1 + drivers/gpu/drm/bridge/Kconfig | 14 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/lontium-lt8912.c | 719 ++++++++++++++++++++++++ 4 files changed, 735 insertions(+) create mode 100644 drivers/gpu/drm/bridge/lontium-lt8912.c diff --git a/MAINTAINERS b/MAINTAINERS index f010b485aa7c..8b3d64b689c7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -10444,6 +10444,7 @@ LONTIUM LT8912 MIPI TO HDMI BRIDGE M: Adrien Grassein S: Maintained F: Documentation/devicetree/bindings/display/bridge/lontium,lt8912.yaml +F: drivers/gpu/drm/bridge/lontium-lt8912.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..5b36d4b86e3c 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_LT8912 + tristate "Lontium LT8912 DSI/HDMI bridge" + depends on OF + select DRM_PANEL_BRIDGE + select DRM_KMS_HELPER + select REGMAP_I2C + help + Driver for Lontium LT8912 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-lt8912". + 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..5a1b201cea1f 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-$(CONFIG_DRM_LONTIUM_LT8912) +=3D lontium-lt8912.o obj-$(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-lt8912.c b/drivers/gpu/drm/brid= ge/lontium-lt8912.c new file mode 100644 index 000000000000..d713d3365c3e --- /dev/null +++ b/drivers/gpu/drm/bridge/lontium-lt8912.c @@ -0,0 +1,719 @@ +// 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