From patchwork Thu Jul 22 09:12:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 484177 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5B9FC63798 for ; Thu, 22 Jul 2021 09:12:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CA7616008E for ; Thu, 22 Jul 2021 09:12:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231387AbhGVIbb (ORCPT ); Thu, 22 Jul 2021 04:31:31 -0400 Received: from relay12.mail.gandi.net ([217.70.178.232]:54013 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231378AbhGVIb1 (ORCPT ); Thu, 22 Jul 2021 04:31:27 -0400 Received: (Authenticated sender: jacopo@jmondi.org) by relay12.mail.gandi.net (Postfix) with ESMTPSA id CE511200007; Thu, 22 Jul 2021 09:11:59 +0000 (UTC) From: Jacopo Mondi To: Geert Uytterhoeven , Magnus Damm , Laurent Pinchart , Kieran Bingham , =?utf-8?q?Niklas_S=C3=B6derlund?= , Rob Herring Cc: Jacopo Mondi , linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring Subject: [PATCH v6 2/8] dt-bindings: media: max9286: Define 'maxim, gpio-poc' Date: Thu, 22 Jul 2021 11:12:33 +0200 Message-Id: <20210722091239.26451-3-jacopo+renesas@jmondi.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210722091239.26451-1-jacopo+renesas@jmondi.org> References: <20210722091239.26451-1-jacopo+renesas@jmondi.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Define a new vendor property in the maxim,max9286 binding schema. The new property allows to declare that the remote camera power-over-coax is controlled by one of the MAX9286 gpio lines. As it is currently not possible to establish a regulator as consumer of the MAX9286 gpio controller for this purpose, the property allows to declare that the camera power is controlled by the MAX9286 directly. The property accepts a gpio-index (0 or 1) and one line polarity flag as defined by dt-bindings/gpio/gpio.h. Reviewed-by: Rob Herring Reviewed-by: Laurent Pinchart Signed-off-by: Jacopo Mondi --- .../bindings/media/i2c/maxim,max9286.yaml | 67 ++++++++++++++++++- 1 file changed, 66 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml index 0e7162998b77..bf93fa73ce41 100644 --- a/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml +++ b/Documentation/devicetree/bindings/media/i2c/maxim,max9286.yaml @@ -70,6 +70,28 @@ properties: a remote serializer whose high-threshold noise immunity is not enabled is 100000 micro volts + maxim,gpio-poc: + $ref: '/schemas/types.yaml#/definitions/uint32-array' + minItems: 2 + maxItems: 2 + description: | + Index of the MAX9286 gpio output line (0 or 1) that controls Power over + Coax to the cameras and its associated polarity flag. + + The property accepts an array of two unsigned integers, the first being + the gpio line index (0 or 1) and the second being the gpio line polarity + flag (GPIO_ACTIVE_HIGH or GPIO_ACTIVE_LOW) as defined in + . + + When the remote cameras power is controlled by one of the MAX9286 gpio + lines, this property has to be used to specify which line among the two + available ones controls the remote camera power enablement. + + When this property is used it is not possible to register a gpio + controller as the gpio lines are controlled directly by the MAX9286 and + not available for consumers, nor the 'poc-supply' property should be + specified. + ports: $ref: /schemas/graph.yaml#/properties/ports @@ -182,7 +204,16 @@ required: - reg - ports - i2c-mux - - gpio-controller + +# If 'maxim,gpio-poc' is present, then 'poc-supply' and 'gpio-controller' +# are not allowed. +if: + required: + - maxim,gpio-poc +then: + properties: + poc-supply: false + gpio-controller: false additionalProperties: false @@ -327,4 +358,38 @@ examples: }; }; }; + + /* + * Example of a deserializer that controls the camera Power over Coax + * through one of its gpio lines. + */ + gmsl-deserializer@6c { + compatible = "maxim,max9286"; + reg = <0x6c>; + enable-gpios = <&gpio 14 GPIO_ACTIVE_HIGH>; + + /* + * The remote camera power is controlled by MAX9286 GPIO line #0. + * No 'poc-supply' nor 'gpio-controller' are specified. + */ + maxim,gpio-poc = <0 GPIO_ACTIVE_LOW>; + + /* + * Do not describe connections as they're the same as in the previous + * example. + */ + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@4 { + reg = <4>; + }; + }; + + i2c-mux { + #address-cells = <1>; + #size-cells = <0>; + }; + }; }; From patchwork Thu Jul 22 09:12:34 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 484176 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5FF3BC63797 for ; Thu, 22 Jul 2021 09:12:18 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 484456135D for ; Thu, 22 Jul 2021 09:12:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231445AbhGVIbg (ORCPT ); Thu, 22 Jul 2021 04:31:36 -0400 Received: from relay12.mail.gandi.net ([217.70.178.232]:50555 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231397AbhGVIb3 (ORCPT ); Thu, 22 Jul 2021 04:31:29 -0400 Received: (Authenticated sender: jacopo@jmondi.org) by relay12.mail.gandi.net (Postfix) with ESMTPSA id C2001200009; Thu, 22 Jul 2021 09:12:01 +0000 (UTC) From: Jacopo Mondi To: Geert Uytterhoeven , Magnus Damm , Laurent Pinchart , Kieran Bingham , =?utf-8?q?Niklas_S=C3=B6derlund?= , Rob Herring Cc: Jacopo Mondi , linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 3/8] media: i2c: max9286: Use "maxim,gpio-poc" property Date: Thu, 22 Jul 2021 11:12:34 +0200 Message-Id: <20210722091239.26451-4-jacopo+renesas@jmondi.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210722091239.26451-1-jacopo+renesas@jmondi.org> References: <20210722091239.26451-1-jacopo+renesas@jmondi.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org The 'maxim,gpio-poc' property is used when the remote camera power-over-coax is controlled by one of the MAX9286 gpio lines, to instruct the driver about which line to use and what the line polarity is. Add to the max9286 driver support for parsing the newly introduced property and use it if available in place of the usual supply, as it is not possible to establish one as consumer of the max9286 gpio controller. If the new property is present, no gpio controller is registered and 'poc-supply' is ignored. In order to maximize code re-use, break out the max9286 gpio handling function so that they can be used by the gpio controller through the gpio-consumer API, or directly by the driver code. Wrap the power up and power down routines to their own function to be able to use either the gpio line directly or the supply. This will make it easier to control the remote camera power at run time. Signed-off-by: Jacopo Mondi Reviewed-by: Laurent Pinchart --- drivers/media/i2c/max9286.c | 125 +++++++++++++++++++++++++++--------- 1 file changed, 94 insertions(+), 31 deletions(-) diff --git a/drivers/media/i2c/max9286.c b/drivers/media/i2c/max9286.c index 18d38db9864c..1b92d18a1f94 100644 --- a/drivers/media/i2c/max9286.c +++ b/drivers/media/i2c/max9286.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -168,6 +169,9 @@ struct max9286_priv { u32 init_rev_chan_mv; u32 rev_chan_mv; + u32 gpio_poc; + u32 gpio_poc_flags; + struct v4l2_ctrl_handler ctrls; struct v4l2_ctrl *pixelrate; @@ -1041,20 +1045,27 @@ static int max9286_setup(struct max9286_priv *priv) return 0; } -static void max9286_gpio_set(struct gpio_chip *chip, - unsigned int offset, int value) +static int max9286_gpio_set(struct max9286_priv *priv, unsigned int offset, + int value) { - struct max9286_priv *priv = gpiochip_get_data(chip); - if (value) priv->gpio_state |= BIT(offset); else priv->gpio_state &= ~BIT(offset); - max9286_write(priv, 0x0f, MAX9286_0X0F_RESERVED | priv->gpio_state); + return max9286_write(priv, 0x0f, + MAX9286_0X0F_RESERVED | priv->gpio_state); +} + +static void max9286_gpiochip_set(struct gpio_chip *chip, + unsigned int offset, int value) +{ + struct max9286_priv *priv = gpiochip_get_data(chip); + + max9286_gpio_set(priv, offset, value); } -static int max9286_gpio_get(struct gpio_chip *chip, unsigned int offset) +static int max9286_gpiochip_get(struct gpio_chip *chip, unsigned int offset) { struct max9286_priv *priv = gpiochip_get_data(chip); @@ -1074,16 +1085,81 @@ static int max9286_register_gpio(struct max9286_priv *priv) gpio->of_node = dev->of_node; gpio->ngpio = 2; gpio->base = -1; - gpio->set = max9286_gpio_set; - gpio->get = max9286_gpio_get; + gpio->set = max9286_gpiochip_set; + gpio->get = max9286_gpiochip_get; gpio->can_sleep = true; + ret = devm_gpiochip_add_data(dev, gpio, priv); + if (ret) + dev_err(dev, "Unable to create gpio_chip\n"); + + return ret; +} + +static int max9286_parse_gpios(struct max9286_priv *priv) +{ + struct device *dev = &priv->client->dev; + u32 gpio_poc[2]; + int ret; + /* GPIO values default to high */ priv->gpio_state = BIT(0) | BIT(1); - ret = devm_gpiochip_add_data(dev, gpio, priv); + /* + * Parse the "gpio-poc" vendor property. If the camera power is + * controlled by one of the MAX9286 gpio lines, do not register + * the gpio controller and ignore 'poc-supply'. + */ + ret = of_property_read_u32_array(dev->of_node, + "maxim,gpio-poc", gpio_poc, 2); + if (!ret) { + priv->gpio_poc = gpio_poc[0]; + priv->gpio_poc_flags = gpio_poc[1]; + if (priv->gpio_poc > 1 || + (priv->gpio_poc_flags != GPIO_ACTIVE_HIGH && + priv->gpio_poc_flags != GPIO_ACTIVE_LOW)) { + dev_err(dev, "Invalid 'gpio-poc': (%u %u)\n", + priv->gpio_poc, priv->gpio_poc_flags); + return -EINVAL; + } + + return 0; + } + + ret = max9286_register_gpio(priv); if (ret) - dev_err(dev, "Unable to create gpio_chip\n"); + return ret; + + priv->regulator = devm_regulator_get(dev, "poc"); + if (IS_ERR(priv->regulator)) { + if (PTR_ERR(priv->regulator) != -EPROBE_DEFER) + dev_err(dev, "Unable to get PoC regulator (%ld)\n", + PTR_ERR(priv->regulator)); + return PTR_ERR(priv->regulator); + } + + return 0; +} + +static int max9286_poc_enable(struct max9286_priv *priv, bool enable) +{ + int ret; + + /* If "poc-gpio" is used, toggle the line and do not use regulator. */ + if (enable) + ret = priv->regulator + ? regulator_enable(priv->regulator) + : max9286_gpio_set(priv, priv->gpio_poc, + enable ^ priv->gpio_poc_flags); + else + ret = priv->regulator + ? regulator_disable(priv->regulator) + : max9286_gpio_set(priv, priv->gpio_poc, + enable ^ priv->gpio_poc_flags); + + if (ret < 0) + dev_err(&priv->client->dev, "Unable to turn PoC %s\n", + enable ? "on" : "off"); return ret; } @@ -1097,17 +1173,14 @@ static int max9286_init(struct device *dev) client = to_i2c_client(dev); priv = i2c_get_clientdata(client); - /* Enable the bus power. */ - ret = regulator_enable(priv->regulator); - if (ret < 0) { - dev_err(&client->dev, "Unable to turn PoC on\n"); + ret = max9286_poc_enable(priv, true); + if (ret) return ret; - } ret = max9286_setup(priv); if (ret) { dev_err(dev, "Unable to setup max9286\n"); - goto err_regulator; + goto err_poc_disable; } /* @@ -1117,7 +1190,7 @@ static int max9286_init(struct device *dev) ret = max9286_v4l2_register(priv); if (ret) { dev_err(dev, "Failed to register with V4L2\n"); - goto err_regulator; + goto err_poc_disable; } ret = max9286_i2c_mux_init(priv); @@ -1133,8 +1206,8 @@ static int max9286_init(struct device *dev) err_v4l2_register: max9286_v4l2_unregister(priv); -err_regulator: - regulator_disable(priv->regulator); +err_poc_disable: + max9286_poc_enable(priv, false); return ret; } @@ -1305,20 +1378,10 @@ static int max9286_probe(struct i2c_client *client) */ max9286_configure_i2c(priv, false); - ret = max9286_register_gpio(priv); + ret = max9286_parse_gpios(priv); if (ret) goto err_powerdown; - priv->regulator = devm_regulator_get(&client->dev, "poc"); - if (IS_ERR(priv->regulator)) { - if (PTR_ERR(priv->regulator) != -EPROBE_DEFER) - dev_err(&client->dev, - "Unable to get PoC regulator (%ld)\n", - PTR_ERR(priv->regulator)); - ret = PTR_ERR(priv->regulator); - goto err_powerdown; - } - ret = max9286_parse_dt(priv); if (ret) goto err_powerdown; @@ -1345,7 +1408,7 @@ static int max9286_remove(struct i2c_client *client) max9286_v4l2_unregister(priv); - regulator_disable(priv->regulator); + max9286_poc_enable(priv, false); gpiod_set_value_cansleep(priv->gpiod_pwdn, 0); From patchwork Thu Jul 22 09:12:37 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 484174 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A653AC63799 for ; Thu, 22 Jul 2021 09:12:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9176160C3D for ; Thu, 22 Jul 2021 09:12:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231417AbhGVIb4 (ORCPT ); Thu, 22 Jul 2021 04:31:56 -0400 Received: from relay12.mail.gandi.net ([217.70.178.232]:55103 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231429AbhGVIbf (ORCPT ); Thu, 22 Jul 2021 04:31:35 -0400 Received: (Authenticated sender: jacopo@jmondi.org) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 717D5200006; Thu, 22 Jul 2021 09:12:07 +0000 (UTC) From: Jacopo Mondi To: Geert Uytterhoeven , Magnus Damm , Laurent Pinchart , Kieran Bingham , =?utf-8?q?Niklas_S=C3=B6derlund?= , Rob Herring Cc: Jacopo Mondi , linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 6/8] arm64: dts: renesas: eagle: Enable MAX9286 Date: Thu, 22 Jul 2021 11:12:37 +0200 Message-Id: <20210722091239.26451-7-jacopo+renesas@jmondi.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210722091239.26451-1-jacopo+renesas@jmondi.org> References: <20210722091239.26451-1-jacopo+renesas@jmondi.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Kieran Bingham Enable the MAX9286 GMSL deserializer on the Eagle-V3M board. Connected cameras should be defined in a device-tree overlay or included after these definitions. Reviewed-by: Laurent Pinchart Signed-off-by: Kieran Bingham Signed-off-by: Jacopo Mondi --- .../arm64/boot/dts/renesas/r8a77970-eagle.dts | 104 ++++++++++++++++++ 1 file changed, 104 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts index 874a7fc2730b..05e66467bc0a 100644 --- a/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts +++ b/arch/arm64/boot/dts/renesas/r8a77970-eagle.dts @@ -6,6 +6,8 @@ * Copyright (C) 2017 Cogent Embedded, Inc. */ +#include + /dts-v1/; #include "r8a77970.dtsi" @@ -188,6 +190,11 @@ i2c0_pins: i2c0 { function = "i2c0"; }; + i2c3_pins: i2c3 { + groups = "i2c3_a"; + function = "i2c3"; + }; + qspi0_pins: qspi0 { groups = "qspi0_ctrl", "qspi0_data4"; function = "qspi0"; @@ -266,6 +273,103 @@ &rwdt { status = "okay"; }; +&csi40 { + status = "okay"; + + ports { + port@0 { + csi40_in: endpoint { + clock-lanes = <0>; + data-lanes = <1 2 3 4>; + remote-endpoint = <&max9286_out0>; + }; + }; + }; +}; + +&i2c3 { + pinctrl-0 = <&i2c3_pins>; + pinctrl-names = "default"; + + status = "okay"; + clock-frequency = <400000>; + + gmsl0: gmsl-deserializer@48 { + compatible = "maxim,max9286"; + reg = <0x48>; + + maxim,gpio-poc = <0 GPIO_ACTIVE_LOW>; + enable-gpios = <&io_expander 0 GPIO_ACTIVE_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + }; + + port@1 { + reg = <1>; + }; + + port@2 { + reg = <2>; + }; + + port@3 { + reg = <3>; + }; + + port@4 { + reg = <4>; + max9286_out0: endpoint { + clock-lanes = <0>; + data-lanes = <1 2 3 4>; + remote-endpoint = <&csi40_in>; + }; + }; + }; + + i2c-mux { + #address-cells = <1>; + #size-cells = <0>; + + i2c@0 { + #address-cells = <1>; + #size-cells = <0>; + reg = <0>; + + status = "disabled"; + }; + + i2c@1 { + #address-cells = <1>; + #size-cells = <0>; + reg = <1>; + + status = "disabled"; + }; + + i2c@2 { + #address-cells = <1>; + #size-cells = <0>; + reg = <2>; + + status = "disabled"; + }; + + i2c@3 { + #address-cells = <1>; + #size-cells = <0>; + reg = <3>; + + status = "disabled"; + }; + }; + }; +}; + &scif0 { pinctrl-0 = <&scif0_pins>; pinctrl-names = "default"; From patchwork Thu Jul 22 09:12:38 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 484175 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18979C6379C for ; Thu, 22 Jul 2021 09:12:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 06A706101B for ; Thu, 22 Jul 2021 09:12:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231487AbhGVIbn (ORCPT ); Thu, 22 Jul 2021 04:31:43 -0400 Received: from relay12.mail.gandi.net ([217.70.178.232]:50555 "EHLO relay12.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231438AbhGVIbg (ORCPT ); Thu, 22 Jul 2021 04:31:36 -0400 Received: (Authenticated sender: jacopo@jmondi.org) by relay12.mail.gandi.net (Postfix) with ESMTPSA id 24F0D200012; Thu, 22 Jul 2021 09:12:09 +0000 (UTC) From: Jacopo Mondi To: Geert Uytterhoeven , Magnus Damm , Laurent Pinchart , Kieran Bingham , =?utf-8?q?Niklas_S=C3=B6derlund?= , Rob Herring Cc: Jacopo Mondi , linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v6 7/8] arm64: dts: renesas: Add GMSL cameras .dtsi Date: Thu, 22 Jul 2021 11:12:38 +0200 Message-Id: <20210722091239.26451-8-jacopo+renesas@jmondi.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210722091239.26451-1-jacopo+renesas@jmondi.org> References: <20210722091239.26451-1-jacopo+renesas@jmondi.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Kieran Bingham Describe the FAKRA connector available on Eagle and Condor boards that allow to connect GMSL camera modules such as IMI RDACM20 and RDACM21. Signed-off-by: Kieran Bingham Signed-off-by: Jacopo Mondi Reviewed-by: Laurent Pinchart --- arch/arm64/boot/dts/renesas/gmsl-cameras.dtsi | 332 ++++++++++++++++++ 1 file changed, 332 insertions(+) create mode 100644 arch/arm64/boot/dts/renesas/gmsl-cameras.dtsi diff --git a/arch/arm64/boot/dts/renesas/gmsl-cameras.dtsi b/arch/arm64/boot/dts/renesas/gmsl-cameras.dtsi new file mode 100644 index 000000000000..d45f072f8cdf --- /dev/null +++ b/arch/arm64/boot/dts/renesas/gmsl-cameras.dtsi @@ -0,0 +1,332 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2017 Ideas on Board + * Copyright (C) 2021 Jacopo Mondi + * + * Device Tree Source (overlay) that describes GMSL camera connected to + * Fakra connectors for the Eagle V3M and Condor V3H (and compatible) boards. + * + * The following cameras are currently supported: RDACM20 and RDACM21. + * + * The board .dts file that include this has to select which cameras are in use + * by specifying the camera model with: + * + * #define GMSL_CAMERA_RDACM20 + * or + * #define GMSL_CAMERA_RDACM21 + * + * And which cameras are connected to the board by defining: + * for GMSL channel 0: + * #define GMSL_CAMERA_0 + * #define GMSL_CAMERA_1 + * #define GMSL_CAMERA_2 + * #define GMSL_CAMERA_3 + * + * for GMSL channel 1: + * #define GMSL_CAMERA_4 + * #define GMSL_CAMERA_5 + * #define GMSL_CAMERA_6 + * #define GMSL_CAMERA_7 + */ + +#include + +/* Validate the board file settings. */ +#if !defined(GMSL_CAMERA_RDACM20) && !defined(GMSL_CAMERA_RDACM21) +#error "Camera model should be defined by the board file" +#endif + +#if defined(GMSL_CAMERA_RDACM20) && defined(GMSL_CAMERA_RDACM21) +#error "A single camera model should be selected" +#endif + +#if !defined(GMSL_CAMERA_0) && !defined(GMSL_CAMERA_1) && \ + !defined(GMSL_CAMERA_2) && !defined(GMSL_CAMERA_3) && \ + !defined(GMSL_CAMERA_4) && !defined(GMSL_CAMERA_5) && \ + !defined(GMSL_CAMERA_6) && !defined(GMSL_CAMERA_7) +#error "At least one camera should be selected" +#endif + +/* Deduce from the enabled cameras which GMSL channels are active. */ +#if defined(GMSL_CAMERA_0) || defined(GMSL_CAMERA_1) || \ + defined(GMSL_CAMERA_2) || defined(GMSL_CAMERA_3) +#define GMSL_0 +#endif + +#if defined(GMSL_CAMERA_4) || defined(GMSL_CAMERA_5) || \ + defined(GMSL_CAMERA_6) || defined(GMSL_CAMERA_7) +#define GMSL_1 +#endif + +/* Deduce the camera model compatible string. */ +#if defined(GMSL_CAMERA_RDACM20) +#define GMSL_CAMERA_MODEL "imi,rdacm20" +#elif defined(GMSL_CAMERA_RDACM21) +#define GMSL_CAMERA_MODEL "imi,rdacm21" +#endif + +#ifdef GMSL_0 +&vin0 { + status = "okay"; +}; + +&vin1 { + status = "okay"; +}; + +&vin2 { + status = "okay"; +}; + +&vin3 { + status = "okay"; +}; + +&gmsl0 { + status = "okay"; + +#if defined(GMSL_CAMERA_RDACM21) + maxim,reverse-channel-microvolt = <100000>; +#endif + + ports { +#ifdef GMSL_CAMERA_0 + port@0 { + max9286_in0: endpoint { + remote-endpoint = <&fakra_con0>; + }; + }; +#endif + +#ifdef GMSL_CAMERA_1 + port@1 { + max9286_in1: endpoint{ + remote-endpoint = <&fakra_con1>; + }; + + }; +#endif + +#ifdef GMSL_CAMERA_2 + port@2 { + max9286_in2: endpoint { + remote-endpoint = <&fakra_con2>; + }; + + }; +#endif + +#ifdef GMSL_CAMERA_3 + port@3 { + max9286_in3: endpoint { + remote-endpoint = <&fakra_con3>; + }; + + }; +#endif + }; + + i2c-mux { +#ifdef GMSL_CAMERA_0 + i2c@0 { + status = "okay"; + + camera@51 { + compatible = GMSL_CAMERA_MODEL; + reg = <0x51>, <0x61>; + + port { + fakra_con0: endpoint { + remote-endpoint = <&max9286_in0>; + }; + }; + }; + }; +#endif + +#ifdef GMSL_CAMERA_1 + i2c@1 { + status = "okay"; + + camera@52 { + compatible = GMSL_CAMERA_MODEL; + reg = <0x52>, <0x62>; + + port { + fakra_con1: endpoint { + remote-endpoint = <&max9286_in1>; + }; + }; + }; + }; +#endif + +#ifdef GMSL_CAMERA_2 + i2c@2 { + status = "okay"; + + camera@53 { + compatible = GMSL_CAMERA_MODEL; + reg = <0x53>, <0x63>; + + port { + fakra_con2: endpoint { + remote-endpoint = <&max9286_in2>; + }; + }; + }; + }; +#endif + +#ifdef GMSL_CAMERA_3 + i2c@3 { + status = "okay"; + + camera@54 { + compatible = GMSL_CAMERA_MODEL; + reg = <0x54>, <0x64>; + + port { + fakra_con3: endpoint { + remote-endpoint = <&max9286_in3>; + }; + }; + }; + }; +#endif + }; +}; +#endif /* ifdef GMSL_0 */ + +#ifdef GMSL_1 +&vin4 { + status = "okay"; +}; + +&vin5 { + status = "okay"; +}; + +&vin6 { + status = "okay"; +}; + +&vin7 { + status = "okay"; +}; + +&gmsl1 { + status = "okay"; + +#if defined(GMSL_CAMERA_RDACM21) + maxim,reverse-channel-microvolt = <100000>; +#endif + + ports { +#ifdef GMSL_CAMERA_4 + port@0 { + max9286_in4: endpoint { + remote-endpoint = <&fakra_con4>; + }; + }; +#endif + +#ifdef GMSL_CAMERA_5 + port@1 { + max9286_in5: endpoint{ + remote-endpoint = <&fakra_con5>; + }; + + }; +#endif + +#ifdef GMSL_CAMERA_6 + port@2 { + max9286_in6: endpoint { + remote-endpoint = <&fakra_con6>; + }; + + }; +#endif + +#ifdef GMSL_CAMERA_7 + port@3 { + max9286_in7: endpoint { + remote-endpoint = <&fakra_con7>; + }; + + }; +#endif + }; + + i2c-mux { +#ifdef GMSL_CAMERA_4 + i2c@0 { + status = "okay"; + + camera@55 { + compatible = GMSL_CAMERA_MODEL; + reg = <0x55>, <0x65>; + + port { + fakra_con4: endpoint { + remote-endpoint = <&max9286_in4>; + }; + }; + }; + }; +#endif + +#ifdef GMSL_CAMERA_5 + i2c@1 { + status = "okay"; + + camera@56 { + compatible = GMSL_CAMERA_MODEL; + reg = <0x56>, <0x66>; + + port { + fakra_con5: endpoint { + remote-endpoint = <&max9286_in5>; + }; + }; + }; + }; +#endif + +#ifdef GMSL_CAMERA_6 + i2c@2 { + status = "okay"; + + camera@57 { + compatible = GMSL_CAMERA_MODEL; + reg = <0x57>, <0x67>; + + port { + fakra_con6: endpoint { + remote-endpoint = <&max9286_in6>; + }; + }; + }; + }; +#endif + +#ifdef GMSL_CAMERA_7 + i2c@3 { + status = "okay"; + + camera@58 { + compatible = GMSL_CAMERA_MODEL; + reg = <0x58>, <0x68>; + + port { + fakra_con7: endpoint { + remote-endpoint = <&max9286_in7>; + }; + }; + }; + }; +#endif + }; +}; +#endif /* ifdef GMSL_1 */