From nobody Tue Apr 7 13:09:46 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 13E5633F8D9; Fri, 13 Mar 2026 06:16:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773382595; cv=none; b=Y95Sf1CtcXfhPb+/HqDUo5tuVmwa4HGn1gcNGP6W9AJzvJdnCi8rxn8fVx2SGOAHXh2Ewk2ezrsk6xmGUqMT0JOv6JSnqOyty+bXok+OyMbH5fabmGLAxn+bOzqrGbJ+LJgouxMOI4hqTVEwJDoTHnWFF/hA97xQ/DxYa4/Eigk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773382595; c=relaxed/simple; bh=vNpHLDPv+cZHiKujD0Jc7flLZg/tYZ6tG/s2x5Dg7Hs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=AF+SrTJyf3xQjZWCiSZTziHBTogP5IPDKy4EqJOzGCEWh9fPM3tINtW401ofc01hSC18/0sdcU9X/lu2hkRC3hm84eb8xfj5U2xEh+mJMeLYcCpbXQ6bcLd98UYi6L1dwk2fC+BQ2DVBpfPgPm5wJkrPwLiAn6X+1GeIFuMkxi4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=NplAZ1gq; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="NplAZ1gq" Received: by smtp.kernel.org (Postfix) with ESMTPS id C5D1AC2BC9E; Fri, 13 Mar 2026 06:16:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773382594; bh=vNpHLDPv+cZHiKujD0Jc7flLZg/tYZ6tG/s2x5Dg7Hs=; h=From:Date:Subject:References:In-Reply-To:To:Cc:Reply-To:From; b=NplAZ1gqhk6l1JT4QVbwUSu6yfYuYKoemTuK2jw09B88B0Ota+wJSR6TXg/+bakcX V13dRgCZ9QSeUWtAkfGl9fYJK8HpC7NZdfTSKLUwHh9+HKNkkiWXXd4RJpWb0CQd6/ 8EGL+rwpJ3I1aV9PVO9PWeWtgVI9jV3hznlZHBKN1ZbWUucoQjRQMOzLNqT63s36Hl Tq4PCehtMZvzVZncaySgW6vVxJ0VPZ909VdbCA9ZBDC6YBgz/nR5p3LW3x7bdWn5Q5 r6PnVcExGEnKqCXRZbGNv/Odhiv5tXXLEQ8va+0tzbYnLb5xqJniDJXrutDAbUg4jm pLnqtI/n2JiyQ== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id B1923106FD85; Fri, 13 Mar 2026 06:16:34 +0000 (UTC) From: Hermes Wu via B4 Relay Date: Fri, 13 Mar 2026 14:16:00 +0800 Subject: [PATCH v3 1/2] dt-bindings: display: bridge: Add ITE IT6162 MIPI DSI to HDMI bridge Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260313-upstream-6162-v3-1-8497fb7c4406@ite.com.tw> References: <20260313-upstream-6162-v3-0-8497fb7c4406@ite.com.tw> In-Reply-To: <20260313-upstream-6162-v3-0-8497fb7c4406@ite.com.tw> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Pet.Weng@ite.com.tw, Kenneth.Hung@ite.com.tw, Hermes Wu , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Hermes Wu X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773382593; l=6431; i=Hermes.wu@ite.com.tw; s=20241230; h=from:subject:message-id; bh=hNHRtDu2GpmT1JtbX1jpk1nZ1HBCOUHNGhquoRan+Qs=; b=bIV4PzFrUxunbr8SXkURS85Y6TIxYgmpXo7gd2LfPfJQckSoiTTVmbCR3W+Cq+byGq/uM/LXF u6Y9LL1+nwkCRgUcS5jPyY1t1jmu6x5Ds9+CPidHeSw2Jp5SnCXLld1 X-Developer-Key: i=Hermes.wu@ite.com.tw; a=ed25519; pk=qho5Dawp2WWj9CGyjtJ6/Y10xH8odjRdS6SXDaDAerU= X-Endpoint-Received: by B4 Relay for Hermes.wu@ite.com.tw/20241230 with auth_id=310 X-Original-From: Hermes Wu Reply-To: Hermes.wu@ite.com.tw From: Hermes Wu Add device tree binding documentation for the ITE IT6162 MIPI DSI to HDMI 2.0 bridge chip. The IT6162 is an I2C-controlled bridge that supports the following configurations: - Single MIPI DSI input: up to 4K @ 30Hz - Dual MIPI DSI input (combined): up to 4K @ 60Hz The chip also supports up to 8-channel audio output via 4 I2S data channels. Signed-off-by: Hermes Wu --- Changes in v3: - Fix lane-polarities: remove $ref redefinition, allow via video-interfac= es.yaml - Improve ite,support-hdcp description to clarify FW-based HDCP behavior - Remove descriptions repeating schema constraints - Remove stray comment in ports required section - Fix data-lanes spacing in example: <1 2 3 4> - Add missing newline at end of file - Add missing change log that Reviewed-by tag was drop in V2. Changes in V2: - Drop Reviewed-by tag due to DT bindings changed. - Add property "ite,spport-hdcp" to enable HDCP - Add property "lane-polarities" and "clock-noncontinuous" for DSI setting --- .../bindings/display/bridge/ite,it6162.yaml | 178 +++++++++++++++++= ++++ 1 file changed, 178 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/ite,it6162.ya= ml b/Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml new file mode 100644 index 0000000000000000000000000000000000000000..b33fd140a9932cff3ede3422984= 88988d337477f --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml @@ -0,0 +1,178 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/ite,it6162.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: ITE IT6162 MIPI DSI to HDMI 2.0 Bridge + +maintainers: + - Hermes Wu + +description: | + The ITE IT6162 is a high-performance, low-power HDMI bridge that converts + 2 MIPI DSI signals to 1 HDMI 2.0 output. It supports dual MIPI D-PHY 2.0 + links up to 10 Gbps each (20 Gbps total), compatible with DSI-2 v2.0. + + The HDMI transmitter supports resolutions up to 4Kx2K@60Hz and is compli= ant + with HDMI 2.0 specifications. + + For audio, it supports up to 8-channel LPCM via I2S (multi-line or TDM m= ode), + with optional S/PDIF or DSD (for SACD). Audio sampling rates up to 192 k= Hz + are supported. + +allOf: + - $ref: /schemas/sound/dai-common.yaml# + +properties: + compatible: + const: ite,it6162 + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + reset-gpios: + maxItems: 1 + + ivdd-supply: + description: Core voltage supply + + ovdd-supply: + description: I/O voltage supply + + ovdd1833-supply: + description: Flexible I/O voltage supply (1.8V domain) + + "#sound-dai-cells": + const: 0 + + ite,support-hdcp: + description: > + Enables FW-based HDCP 1.4 and 2.3 negotiation. When absent, the + bridge firmware will not attempt HDCP authentication regardless + of sink capability. + type: boolean + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Input port for MIPI DSI-0 + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + properties: + data-lanes: true + lane-polarities: true + clock-noncontinuous: true + required: + - data-lanes + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + unevaluatedProperties: false + description: Input port for MIPI DSI-1 + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + properties: + data-lanes: true + lane-polarities: true + clock-noncontinuous: true + required: + - data-lanes + + port@2: + $ref: /schemas/graph.yaml#/properties/port + description: Audio input port + + port@3: + $ref: /schemas/graph.yaml#/properties/port + description: HDMI output port + + required: + - port@1 + +required: + - compatible + - reg + - interrupts + - ports + +unevaluatedProperties: false + +examples: + - | + #include + #include + + i2c { + #address-cells =3D <1>; + #size-cells =3D <0>; + + bridge@58 { + compatible =3D "ite,it6162"; + reg =3D <0x58>; + + #sound-dai-cells =3D <0>; + + interrupt-parent =3D <&pio>; + interrupts =3D <128 IRQ_TYPE_LEVEL_LOW>; + + pinctrl-names =3D "default"; + pinctrl-0 =3D <&it6162_pins>; + + reset-gpios =3D <&pio 127 GPIO_ACTIVE_LOW>; + + ivdd-supply =3D <&pp1000_hdmi_x>; + ovdd-supply =3D <&pp3300_vio28_x>; + ovdd1833-supply =3D <&pp1800_vcamio_x>; + + ite,support-hdcp; + + ports { + #address-cells =3D <1>; + #size-cells =3D <0>; + + port@0 { + reg =3D <0>; + it6162_dsi0: endpoint { + data-lanes =3D <1 2 3 4>; + remote-endpoint =3D <&dsi_0_out>; + }; + }; + + port@1 { + reg =3D <1>; + it6162_dsi1: endpoint { + data-lanes =3D <1 2 3 4>; + remote-endpoint =3D <&dsi_1_out>; + }; + }; + + port@2 { + reg =3D <2>; + it6162_audio_in: endpoint { + remote-endpoint =3D <&i2s0_out>; + }; + }; + + port@3 { + reg =3D <3>; + it6162_hdmi_out: endpoint { + remote-endpoint =3D <&hdmi_connector_in>; + }; + }; + }; + }; + }; --=20 2.34.1 From nobody Tue Apr 7 13:09:46 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 25CF33537C9; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260313-upstream-6162-v3-2-8497fb7c4406@ite.com.tw> References: <20260313-upstream-6162-v3-0-8497fb7c4406@ite.com.tw> In-Reply-To: <20260313-upstream-6162-v3-0-8497fb7c4406@ite.com.tw> To: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley Cc: Pet.Weng@ite.com.tw, Kenneth.Hung@ite.com.tw, Hermes Wu , dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Hermes Wu X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773382593; l=50176; i=Hermes.wu@ite.com.tw; s=20241230; h=from:subject:message-id; bh=Lq0/PTFPrL2Zt0EzibTMWfymNm2szWNpiY0CisL7HhA=; b=jHt11jayL/BsI3eQG/1tpOdNrZ1MkFkMhAYcKWcNo3bE5Ni+2I33Y2N5XcchRfQrZ1Zr3gbtx hT4C0g6lEvPDuYNZk8uwIV9vIpo/7drwGNZO2hVjeAb9W13AKy5g3cQ X-Developer-Key: i=Hermes.wu@ite.com.tw; a=ed25519; pk=qho5Dawp2WWj9CGyjtJ6/Y10xH8odjRdS6SXDaDAerU= X-Endpoint-Received: by B4 Relay for Hermes.wu@ite.com.tw/20241230 with auth_id=310 X-Original-From: Hermes Wu Reply-To: Hermes.wu@ite.com.tw From: Hermes Wu Add support for the ITE IT6162 MIPI DSI to HDMI 2.0 bridge chip. The IT6162 is an I2C-controlled bridge that supports the following configurations: - Single MIPI DSI input: up to 4K @ 30Hz - Dual MIPI DSI input (combined): up to 4K @ 60Hz The driver implements the DRM bridge and connector frameworks, including mode setting, EDID retrieval, and HPD support. Also add a MAINTAINERS entry for the newly introduced ITE IT6162 MIPI DSI to HDMI bridge driver, covering the driver source file and the device tree binding document. Signed-off-by: Hermes Wu --- Changes in v3: * Fix OFFSET_VERSION_H register offset from 0x03 to 0x05 * Add MIPI_PORT_EN_MASK macro combining MIPI_PORT1_EN_MASK and MIPI_PORT0= _EN_MASK * Rename HDCP enums: NO_HDCP -> HDCP_DISABLE, NO_HDCP_STATE -> HDCP_STATE= _IDLE, AUTH_DONE -> HDCP_STATE_AUTH_DONE, AUTH_FAIL -> HDCP_STATE_AUTH_FAIL * Rename it6162_infoblock_complete() to it6162_wait_command_complete() * Rename it6162_infoblock_host_set() to it6162_infoblock_trigger() * Remove it6162_infoblock_mipi_config() and it6162_infoblock_write_msg() wrappers, inline into it6162_reset_init() and it6162_mipi_set_video_timing() respectively * Remove it6162_set_default_config() wrapper, inline into it6162_reset_init() * Fix typo: hdcp_encyption -> hdcp_encryption * Fix typo: it6162_hdcp_read_infomation -> it6162_hdcp_read_information * Remove dev_err_probe() usage outside of probe path * Remove verbose success-path dev_info/dev_dbg logging throughout * Replace __func__ usage in error messages with descriptive strings * Fix double error printing in probe for it6162_init_pdata failure path * Fix uninitialized variable warning: initialize cp_status to DRM_MODE_CONTENT_PROTECTION_DESIRED at declaration; move drm_hdcp_update_content_protection() inside the state-change block * Fix audio sample width mapping: case 20 now maps to WORD_LENGTH_20BIT, case 24 to WORD_LENGTH_24BIT * Remove stray drm_dbg("it6162_bridge_atomic_disable") call * Remove drm_dbg() calls from it6162_display_mode_to_settings() * Drop unused struct it6162 * parameter from it6162_avi_to_video_setting() and it6162_display_mode_to_settings() * Fold it6162_set_default_config() body directly into it6162_reset_init(), removing the wrapper * Fix it6162_infoblock_request_data(): split command complete polling and buffer status check into two steps; use wait_event_timeout() for data_buf_sts since it is updated asynchronously by the interrupt handler; add wait_queue_head_t data_buf_wait to struct it6162 and wake_up() in interrupt handler --- MAINTAINERS | 7 + drivers/gpu/drm/bridge/Kconfig | 17 + drivers/gpu/drm/bridge/Makefile | 1 + drivers/gpu/drm/bridge/ite-it6162.c | 1631 +++++++++++++++++++++++++++++++= ++++ 4 files changed, 1656 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 30f3472c72933c93b9237d93ad35802d6dda75f1..9c6e7c02227e810f280d2bfaa73= e0eb572db0119 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -13640,6 +13640,13 @@ W: https://linuxtv.org Q: http://patchwork.linuxtv.org/project/linux-media/list/ F: drivers/media/tuners/it913x* =20 +ITE IT6162 MIPI DSI TO HDMI BRIDGE DRIVER +M: Hermes Wu +L: dri-devel@lists.freedesktop.org +S: Maintained +F: Documentation/devicetree/bindings/display/bridge/ite,it6162.yaml +F: drivers/gpu/drm/bridge/ite-it6162.c + ITE IT6263 LVDS TO HDMI BRIDGE DRIVER M: Liu Ying L: dri-devel@lists.freedesktop.org diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index 1cabfa1d2b2efc6fca68619eea6050fe96a892e8..1a8fe59506cf60958babb48429b= 842ca3aecc755 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -107,6 +107,23 @@ config DRM_INNO_HDMI select DRM_DISPLAY_HELPER select DRM_KMS_HELPER =20 +config DRM_ITE_IT6162 + tristate "iTE IT6162 DSI to HDMI bridge" + depends on OF + select REGMAP_I2C + select DRM_MIPI_DSI + select DRM_PANEL_BRIDGE + select DRM_KMS_HELPER + select DRM_HDMI_HELPER + select DRM_DISPLAY_HDMI_HELPER + select DRM_DISPLAY_HDCP_HELPER + select DRM_DISPLAY_HELPER + help + Driver for iTE IT6162 DSI to HDMI bridge + chip driver that converts DSI to HDMI signals + support up to 4k60 with 2 MIPI DSI + Please say Y if you have such hardware. + config DRM_ITE_IT6263 tristate "ITE IT6263 LVDS/HDMI bridge" depends on OF diff --git a/drivers/gpu/drm/bridge/Makefile b/drivers/gpu/drm/bridge/Makef= ile index fb0cf0bf88756bed8323830c80f3f1d066b51e36..3a199b27b3bbe8294a5bef6c82c= fee4cd7b8a34e 100644 --- a/drivers/gpu/drm/bridge/Makefile +++ b/drivers/gpu/drm/bridge/Makefile @@ -11,6 +11,7 @@ tda998x-y :=3D tda998x_drv.o obj-$(CONFIG_DRM_I2C_NXP_TDA998X) +=3D tda998x.o =20 obj-$(CONFIG_DRM_INNO_HDMI) +=3D inno-hdmi.o +obj-$(CONFIG_DRM_ITE_IT6162) +=3D ite-it6162.o obj-$(CONFIG_DRM_ITE_IT6263) +=3D ite-it6263.o obj-$(CONFIG_DRM_ITE_IT6505) +=3D ite-it6505.o obj-$(CONFIG_DRM_LONTIUM_LT8912B) +=3D lontium-lt8912b.o diff --git a/drivers/gpu/drm/bridge/ite-it6162.c b/drivers/gpu/drm/bridge/i= te-it6162.c new file mode 100644 index 0000000000000000000000000000000000000000..fc71de1863144deebc1d884629b= e5352643e6af8 --- /dev/null +++ b/drivers/gpu/drm/bridge/ite-it6162.c @@ -0,0 +1,1631 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2024 ITE Tech. Inc. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include