From patchwork Thu Feb 27 16:58:01 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 13994945 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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 0DF88C19F32 for ; Thu, 27 Feb 2025 17:07:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7C95F10EB49; Thu, 27 Feb 2025 17:07:43 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=denx.de header.i=@denx.de header.b="KQNxjRXp"; dkim-atps=neutral Received: from mx.denx.de (mx.denx.de [89.58.32.78]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0063B10EB49 for ; Thu, 27 Feb 2025 17:07:21 +0000 (UTC) Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with ESMTPSA id 8A02410382F1A; Thu, 27 Feb 2025 18:00:43 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=mx-20241105; t=1740675645; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=q+0tAWt+Qjct3O4SDcG8rZZ2o6M/LcHVGvtP3po6lSY=; b=KQNxjRXpcvJbz9cgkcZQoHo9j6WJlFA4+eHsi+79LIXltTLb8A2GR9urWj7yMW/wa4fC++ O7re390e2VOV3buJ5/H6NnTQ2nJ9lhtq8tQ8dJKEU9I6CIgBgfQpklf8Qh1wkKodqvMZgY 1kXjSslr0OIIA+HI6ZwkwsQA9/bl3iTU5+jCdZ4O3fei8TLnvxUThvGT7PIe3I+tUxP5WX uCsYX7xWdJ0IziUY+ZGVfNDARw9uFflLV38qjFs/KZGwnouYXYptpWA0Yr68dV5dhbd45a 608JCAPJkOQTBgxfxoEMdJe/nPXD4hDYp6Xxg/Og7YOgn2xnNNJQp0hfdSF7Pw== From: Marek Vasut To: linux-arm-kernel@lists.infradead.org Cc: Marek Vasut , Boris Brezillon , Conor Dooley , David Airlie , Fabio Estevam , Krzysztof Kozlowski , Liviu Dudau , Maarten Lankhorst , Maxime Ripard , Pengutronix Kernel Team , Philipp Zabel , Rob Herring , Sascha Hauer , Sebastian Reichel , Shawn Guo , Simona Vetter , Steven Price , Thomas Zimmermann , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, imx@lists.linux.dev Subject: [PATCH 1/9] dt-bindings: reset: imx95-gpu-blk-ctrl: Document Freescale i.MX95 GPU reset Date: Thu, 27 Feb 2025 17:58:01 +0100 Message-ID: <20250227170012.124768-2-marex@denx.de> X-Mailer: git-send-email 2.47.2 In-Reply-To: <20250227170012.124768-1-marex@denx.de> References: <20250227170012.124768-1-marex@denx.de> MIME-Version: 1.0 X-Last-TLS-Session-Version: TLSv1.3 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" The instance of the GPU populated in Freescale i.MX95 does require release from reset by writing into a single GPUMIX block controller GPURESET register bit 0. Document support for this reset register. Signed-off-by: Marek Vasut --- Cc: Boris Brezillon Cc: Conor Dooley Cc: David Airlie Cc: Fabio Estevam Cc: Krzysztof Kozlowski Cc: Liviu Dudau Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Pengutronix Kernel Team Cc: Philipp Zabel Cc: Rob Herring Cc: Sascha Hauer Cc: Sebastian Reichel Cc: Shawn Guo Cc: Simona Vetter Cc: Steven Price Cc: Thomas Zimmermann Cc: devicetree@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Cc: imx@lists.linux.dev Cc: linux-arm-kernel@lists.infradead.org --- .../reset/fsl,imx95-gpu-blk-ctrl.yaml | 49 +++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/fsl,imx95-gpu-blk-ctrl.yaml diff --git a/Documentation/devicetree/bindings/reset/fsl,imx95-gpu-blk-ctrl.yaml b/Documentation/devicetree/bindings/reset/fsl,imx95-gpu-blk-ctrl.yaml new file mode 100644 index 0000000000000..dc701bd556c0b --- /dev/null +++ b/Documentation/devicetree/bindings/reset/fsl,imx95-gpu-blk-ctrl.yaml @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/reset/fsl,imx95-gpu-blk-ctrl.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Freescale i.MX95 GPU Block Controller + +maintainers: + - Marek Vasut + +description: | + This reset controller is a block of ad-hoc debug registers, one of + which is a single-bit GPU reset. + +properties: + compatible: + - const: fsl,imx95-gpu-blk-ctrl + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + power-domains: + maxItems: 1 + + '#reset-cells': + const: 1 + +required: + - compatible + - reg + - clocks + - power-domains + - '#reset-cells' + +additionalProperties: false + +examples: + - | + reset-controller@4d810000 { + compatible = "fsl,imx95-gpu-blk-ctrl"; + reg = <0x0 0x4d810000 0x0 0xc>; + clocks = <&scmi_clk IMX95_CLK_GPUAPB>; + power-domains = <&scmi_devpd IMX95_PD_GPU>; + #reset-cells = <1>; + };