From patchwork Fri Feb 26 09:11:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 12106157 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=-11.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 167ECC433E6 for ; Fri, 26 Feb 2021 09:13:17 +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 B9CC664EF3 for ; Fri, 26 Feb 2021 09:13:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B9CC664EF3 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=collabora.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:To:From: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=lEfTm7n3wArDxpFmaXInaG5gxvXwhrReo7En8zsCWik=; b=ohntsaZR+oP1v8EU4nBwT7k+8f STvmXI8i6I1GeA69b98XXX5iuWjn3KZ9b6RkltlePhu2f2UT26yN7mstNO0EMMxzdUVzWBXqPAsiF n4FusYUKnhO1jzlU/rB74V/jGLchNikSV89Iue2jDxvi3+DPxLd8G30ire2osJxOdmUNNwr91YrfR VYLZUDEv4ZqxdY+KhGrTj9AVAwhXKZlrdlApssB0zkEiE0eQkLfHsxUHpKpZP96P9f/0l7FHPPBZE MU/hSE1u5rrJKPOJSKJLFL+tagnmKqBlHJ86RhySERdtuMplue4GzKDeOAJnu03cYiQyGPJD1N+ld yR/ZgLyQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1lFZ9z-0001ly-PR; Fri, 26 Feb 2021 09:11:43 +0000 Received: from bhuna.collabora.co.uk ([2a00:1098:0:82:1000:25:2eeb:e3e3]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1lFZ9w-0001ja-83; Fri, 26 Feb 2021 09:11:41 +0000 Received: from localhost.localdomain (unknown [IPv6:2a01:e0a:4cb:a870:297a:447b:deb4:3f5c]) (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 44E421F464C8; Fri, 26 Feb 2021 09:11:36 +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 v2 0/5] Reset driver for IMX8MQ VPU hardware block Date: Fri, 26 Feb 2021 10:11:23 +0100 Message-Id: <20210226091128.14379-1-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210226_041140_483544_F33C7CE9 X-CRM114-Status: GOOD ( 13.40 ) 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 The two VPUs inside IMX8MQ share the same control block which can be see as a reset hardware block. In order to be able to add the second VPU (for HECV decoding) it will be more handy if the both VPU drivers instance don't have to share the control block registers. This lead to implement it as an independ reset driver and to change the VPU driver to use it. Please note that this series break the compatibility between the DTB and kernel. This break is limited to IMX8MQ SoC and is done when the driver is still in staging directory. version 2: - Document the change in VPU bindings Benjamin Gaignard (5): dt-bindings: reset: IMX8MQ VPU reset dt-bindings: media: IMX8MQ VPU: document reset usage reset: Add reset driver for IMX8MQ VPU block media: hantro: Use reset driver arm64: dts: imx8mq: Use reset driver for VPU hardware block .../bindings/media/nxp,imx8mq-vpu.yaml | 11 +- .../bindings/reset/fsl,imx8mq-vpu-reset.yaml | 54 ++++++ arch/arm64/boot/dts/freescale/imx8mq.dtsi | 31 +++- drivers/reset/Kconfig | 8 + drivers/reset/Makefile | 1 + drivers/reset/reset-imx8mq-vpu.c | 169 ++++++++++++++++++ drivers/staging/media/hantro/Kconfig | 1 + drivers/staging/media/hantro/imx8m_vpu_hw.c | 61 ++----- include/dt-bindings/reset/imx8mq-vpu-reset.h | 16 ++ 9 files changed, 293 insertions(+), 59 deletions(-) create mode 100644 Documentation/devicetree/bindings/reset/fsl,imx8mq-vpu-reset.yaml create mode 100644 drivers/reset/reset-imx8mq-vpu.c create mode 100644 include/dt-bindings/reset/imx8mq-vpu-reset.h