From patchwork Thu Feb 11 11:50:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 12082965 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=-17.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,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 4A4B4C433DB for ; Thu, 11 Feb 2021 11:52:28 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id F15EA64DA5 for ; 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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lAAUT-0001Xb-5u; Thu, 11 Feb 2021 11:50:33 +0000 Received: from bhuna.collabora.co.uk ([46.235.227.227]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lAAUE-0001RF-EJ; Thu, 11 Feb 2021 11:50:20 +0000 Received: from localhost.localdomain (unknown [IPv6:2a01:e0a:4cb:a870:94f7:2542:9eb3:b5ba]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: benjamin.gaignard) by bhuna.collabora.co.uk (Postfix) with ESMTPSA id C44F11F45970; Thu, 11 Feb 2021 11:50:13 +0000 (GMT) From: Benjamin Gaignard To: p.zabel@pengutronix.de, robh+dt@kernel.org, shawnguo@kernel.org, s.hauer@pengutronix.de, festevam@gmail.com, ezequiel@collabora.com, mchehab@kernel.org, gregkh@linuxfoundation.org Subject: [PATCH 1/4] dt-bindings: reset: IMX8MQ VPU reset Date: Thu, 11 Feb 2021 12:50:00 +0100 Message-Id: <20210211115003.249367-2-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210211115003.249367-1-benjamin.gaignard@collabora.com> References: <20210211115003.249367-1-benjamin.gaignard@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210211_065018_615575_660CFCDA X-CRM114-Status: GOOD ( 15.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devel@driverdev.osuosl.org, devicetree@vger.kernel.org, benjamin.gaignard@collabora.com, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-imx@nxp.com, kernel@pengutronix.de, kernel@collabora.com, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Document bindings for IMX8MQ VPU reset hardware block Signed-off-by: Benjamin Gaignard --- .../bindings/reset/fsl,imx8mq-vpu-reset.yaml | 54 +++++++++++++++++++ include/dt-bindings/reset/imx8mq-vpu-reset.h | 16 ++++++ 2 files changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/fsl,imx8mq-vpu-reset.yaml create mode 100644 include/dt-bindings/reset/imx8mq-vpu-reset.h diff --git a/Documentation/devicetree/bindings/reset/fsl,imx8mq-vpu-reset.yaml b/Documentation/devicetree/bindings/reset/fsl,imx8mq-vpu-reset.yaml new file mode 100644 index 000000000000..00020421c0e3 --- /dev/null +++ b/Documentation/devicetree/bindings/reset/fsl,imx8mq-vpu-reset.yaml @@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/fsl,imx8mq-vpu-reset.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale i.MX8MQ VPU Reset Controller + +maintainers: + - Benjamin Gaignard + +description: | + The VPU reset controller is used to reset the video processor + unit peripherals. Device nodes that need access to reset lines should + specify them as a reset phandle in their corresponding node as + specified in reset.txt. + + For list of all valid reset indices see + for i.MX8MQ. + +properties: + compatible: + items: + - const: fsl,imx8mq-vpu-reset + - const: syscon + + reg: + maxItems: 1 + + clocks: + minItems: 1 + maxItems: 3 + + '#reset-cells': + const: 1 + +required: + - compatible + - reg + - clocks + - '#reset-cells' + +additionalProperties: false + +examples: + - | + #include + + vpu-reset@38320000 { + compatible = "fsl,imx8mq-vpu-reset", "syscon"; + reg = <0x38320000 0x10000>; + clocks = <&clk IMX8MQ_CLK_VPU_DEC_ROOT>; + #reset-cells = <1>; + }; diff --git a/include/dt-bindings/reset/imx8mq-vpu-reset.h b/include/dt-bindings/reset/imx8mq-vpu-reset.h new file mode 100644 index 000000000000..efcbe18177fe --- /dev/null +++ b/include/dt-bindings/reset/imx8mq-vpu-reset.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2021, Collabora + * + * i.MX7 System Reset Controller (SRC) driver + * + * Author: Benjamin Gaignard + */ + +#ifndef DT_BINDINGS_VPU_RESET_IMX8MQ +#define DT_BINDINGS_VPU_RESET_IMX8MQ + +#define IMX8MQ_RESET_VPU_RESET_G1 0 +#define IMX8MQ_RESET_VPU_RESET_G2 1 + +#endif