From patchwork Thu Feb 11 11:49:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Gaignard X-Patchwork-Id: 12082971 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, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,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 833A7C433E6 for ; Thu, 11 Feb 2021 11:54:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4613264EAC for ; Thu, 11 Feb 2021 11:54:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231659AbhBKLyA (ORCPT ); Thu, 11 Feb 2021 06:54:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34296 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230414AbhBKLu5 (ORCPT ); Thu, 11 Feb 2021 06:50:57 -0500 Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [IPv6:2a00:1098:0:82:1000:25:2eeb:e3e3]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ADEFEC061756; Thu, 11 Feb 2021 03:50:16 -0800 (PST) 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 D64311F40F2D; Thu, 11 Feb 2021 11:50:12 +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 Cc: kernel@pengutronix.de, linux-imx@nxp.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, devel@driverdev.osuosl.org, kernel@collabora.com, benjamin.gaignard@collabora.com Subject: [PATCH 0/4] Reset driver for IMX8MQ VPU hardware block Date: Thu, 11 Feb 2021 12:49:59 +0100 Message-Id: <20210211115003.249367-1-benjamin.gaignard@collabora.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.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. Benjamin Gaignard (4): dt-bindings: reset: IMX8MQ VPU reset reset: Add reset driver for IMX8MQ VPU block media: hantro: Use reset driver arm64: dts: imx8mq: Use reset driver for VPU hardware block .../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 ++ 8 files changed, 285 insertions(+), 56 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