From patchwork Thu Aug 18 14:33:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Marco Felsch X-Patchwork-Id: 12947242 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id CA408C32772 for ; Thu, 18 Aug 2022 14:34:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1343650AbiHROem (ORCPT ); Thu, 18 Aug 2022 10:34:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56064 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S245387AbiHROeF (ORCPT ); Thu, 18 Aug 2022 10:34:05 -0400 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [IPv6:2001:67c:670:201:290:27ff:fe1d:cc33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3EBDC2CCB4 for ; Thu, 18 Aug 2022 07:33:47 -0700 (PDT) Received: from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2]) by metis.ext.pengutronix.de with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1oOgaJ-0005lN-Ki; Thu, 18 Aug 2022 16:33:23 +0200 Received: from [2a0a:edc0:0:1101:1d::28] (helo=dude02.red.stw.pengutronix.de) by drehscheibe.grey.stw.pengutronix.de with esmtp (Exim 4.94.2) (envelope-from ) id 1oOgaH-000X0w-Vf; Thu, 18 Aug 2022 16:33:21 +0200 Received: from mfe by dude02.red.stw.pengutronix.de with local (Exim 4.94.2) (envelope-from ) id 1oOgaH-0043dU-3I; Thu, 18 Aug 2022 16:33:21 +0200 From: Marco Felsch To: mchehab@kernel.org, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, vkoul@kernel.org, kishon@ti.com, sakari.ailus@linux.intel.com, hverkuil@xs4all.nl, jacopo@jmondi.org, laurent.pinchart+renesas@ideasonboard.com Cc: linux-kernel@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-media@vger.kernel.org, kernel@pengutronix.de Subject: [PATCH 3/4] media: dt-bindings: add bindings for Toshiba TC358746 Date: Thu, 18 Aug 2022 16:33:06 +0200 Message-Id: <20220818143307.967150-4-m.felsch@pengutronix.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220818143307.967150-1-m.felsch@pengutronix.de> References: <20220818143307.967150-1-m.felsch@pengutronix.de> MIME-Version: 1.0 X-SA-Exim-Connect-IP: 2a0a:edc0:0:c01:1d::a2 X-SA-Exim-Mail-From: mfe@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: linux-media@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add the bindings for the Toshiba TC358746 Parallel <-> MIPI-CSI bridge driver. Signed-off-by: Marco Felsch Reviewed-by: Rob Herring --- .../bindings/media/i2c/toshiba,tc358746.yaml | 157 ++++++++++++++++++ 1 file changed, 157 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/toshiba,tc358746.yaml diff --git a/Documentation/devicetree/bindings/media/i2c/toshiba,tc358746.yaml b/Documentation/devicetree/bindings/media/i2c/toshiba,tc358746.yaml new file mode 100644 index 000000000000..9783cca363c6 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/toshiba,tc358746.yaml @@ -0,0 +1,157 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/i2c/toshiba,tc358746.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Toshiba TC358746 Parallel to MIPI CSI2 Bridge + +maintainers: + - Marco Felsch + +description: |- + The Toshiba TC358746 converts a parallel video stream into a MIPI CSI-2 + stream. The direction can be either parallel-in -> csi-out or csi-in -> + parallel-out The chip is programmable trough I2C and SPI but the SPI + interface is only supported in parallel-in -> csi-out mode. + + Note that the current device tree bindings only support the + parallel-in -> csi-out path. + +properties: + compatible: + const: toshiba,tc358746 + + reg: + maxItems: 1 + + clocks: + description: + The phandle to the reference clock source. This corresponds to the + hardware pin REFCLK. + maxItems: 1 + + clock-names: + const: refclk + +# The bridge can act as clock provider for the sensor. To enable this support +# #clock-cells must be specified. Attention if this feature is used than the +# mclk rate must be at least: (2 * link-frequency) / 8 +# `------------------ยด ^ +# internal PLL rate smallest possible mclk-div + "#clock-cells": + const: 0 + + clock-output-names: + description: + The clock name of the MCLK output, the default name is tc358746-mclk. + maxItems: 1 + + vddc-supply: + description: Digital core voltage supply, 1.2 volts + + vddio-supply: + description: Digital I/O voltage supply, 1.8 volts + + vddmipi-supply: + description: MIPI CSI phy voltage supply, 1.2 volts + + reset-gpios: + description: + The phandle and specifier for the GPIO that controls the chip reset. + This corresponds to the hardware pin RESX which is physically active low. + maxItems: 1 + + ports: + $ref: /schemas/graph.yaml#/properties/ports + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: Input port + + port@1: + $ref: /schemas/graph.yaml#/$defs/port-base + description: Output port + + properties: + endpoint: + $ref: /schemas/media/video-interfaces.yaml# + unevaluatedProperties: false + + properties: + data-lanes: + minItems: 1 + maxItems: 4 + + clock-noncontinuous: true + link-frequencies: true + + required: + - data-lanes + - link-frequencies + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - clocks + - clock-names + - vddc-supply + - vddio-supply + - vddmipi-supply + - ports + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + csi-bridge@e { + compatible = "toshiba,tc358746"; + reg = <0xe>; + + clocks = <&refclk>; + clock-names = "refclk"; + + reset-gpios = <&gpio 2 GPIO_ACTIVE_LOW>; + + vddc-supply = <&v1_2d>; + vddio-supply = <&v1_8d>; + vddmipi-supply = <&v1_2d>; + + /* sensor mclk provider */ + #clock-cells = <0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + /* Input */ + port@0 { + reg = <0>; + tc358746_in: endpoint { + remote-endpoint = <&sensor_out>; + }; + }; + + /* Output */ + port@1 { + reg = <1>; + tc358746_out: endpoint { + remote-endpoint = <&mipi_csi2_in>; + data-lanes = <1 2>; + clock-noncontinuous; + link-frequencies = /bits/ 64 <216000000>; + }; + }; + }; + }; + };