From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 4E8B0C433DB for ; Fri, 26 Feb 2021 12:22:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F2C1764EE7 for ; Fri, 26 Feb 2021 12:22:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229947AbhBZMV7 (ORCPT ); Fri, 26 Feb 2021 07:21:59 -0500 Received: from perceval.ideasonboard.com ([213.167.242.64]:48842 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229545AbhBZMV6 (ORCPT ); Fri, 26 Feb 2021 07:21:58 -0500 Received: from pendragon.ideasonboard.com (62-78-145-57.bb.dnainternet.fi [62.78.145.57]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 73C2C580; Fri, 26 Feb 2021 13:21:15 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1614342075; bh=nWbkyCTRl2N2loenx0RpKhmqgsTqWZeI/+24sE7lDhU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=TcSjq8cDB3hjPdLb7dogNwqtilbbkVTw7X/DrsU17Nz9vFs3rx7+oez0CY5jLi9Ec fMxcT0nUdoyjfSX1ngWRDP/xDrdl7tjSaqoYZY0ARG5pHHlrSSGv09J/8Kr+QU59Ij r1ntDap30ZQLLhMtaGisDIueCD1Qw7F2yCzYFczY= Date: Fri, 26 Feb 2021 14:20:48 +0200 From: Laurent Pinchart To: Fabrizio Castro Cc: Rob Herring , Arnd Bergmann , Geert Uytterhoeven , Greg Kroah-Hartman , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, Catalin Marinas , Will Deacon , Chris Paterson , Prabhakar Mahadev Lad , Phil Edworthy , Dirk Behme , Peter Erben Subject: Re: [PATCH 0/7] Add FFT Support for R-Car Gen3 devices Message-ID: References: <20210225225147.29920-1-fabrizio.castro.jz@renesas.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20210225225147.29920-1-fabrizio.castro.jz@renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org Hi Fabrizio, On Thu, Feb 25, 2021 at 10:51:40PM +0000, Fabrizio Castro wrote: > The DAB hardware accelerator found on R-Car E3 (a.k.a. r8a77990) > and R-Car M3-N (a.k.a. r8a77965) devices is a hardware accelerator > for software DAB demodulators. > It consists of one FFT (Fast Fourier Transform) module and one > decoder module, compatible with DAB specification (ETSI EN 300 401 > and ETSI TS 102 563). > The decoder module can perform FIC decoding and MSC decoding > processing from de-puncture to final decoded result. > > This series adds FFT support only for R-Car E3 and R-Car M3-N, > FIC and MSC support will be added later on. Out of curiosity, could the FFT module be used as an accelerator for 2D FFT on images ? > Fabrizio Castro (7): > clk: renesas: r8a77990: Add DAB clock > clk: renesas: r8a77965: Add DAB clock > dt-bindings: misc: Add binding for R-Car DAB > misc: Add driver for DAB IP found on Renesas R-Car devices > arm64: dts: renesas: r8a77990: Add DAB support > arm64: dts: renesas: r8a77965: Add DAB support > arm64: configs: Add R-Car DAB support > > .../devicetree/bindings/misc/renesas,dab.yaml | 75 ++++++++ > MAINTAINERS | 7 + > arch/arm64/boot/dts/renesas/r8a77965.dtsi | 12 ++ > arch/arm64/boot/dts/renesas/r8a77990.dtsi | 12 ++ > arch/arm64/configs/defconfig | 1 + > drivers/clk/renesas/r8a77965-cpg-mssr.c | 1 + > drivers/clk/renesas/r8a77990-cpg-mssr.c | 1 + > drivers/misc/Kconfig | 1 + > drivers/misc/Makefile | 1 + > drivers/misc/rcar_dab/Kconfig | 11 ++ > drivers/misc/rcar_dab/Makefile | 8 + > drivers/misc/rcar_dab/rcar_dev.c | 176 ++++++++++++++++++ > drivers/misc/rcar_dab/rcar_dev.h | 116 ++++++++++++ > drivers/misc/rcar_dab/rcar_fft.c | 160 ++++++++++++++++ > include/uapi/linux/rcar_dab.h | 35 ++++ > 15 files changed, 617 insertions(+) > create mode 100644 Documentation/devicetree/bindings/misc/renesas,dab.yaml > create mode 100644 drivers/misc/rcar_dab/Kconfig > create mode 100644 drivers/misc/rcar_dab/Makefile > create mode 100644 drivers/misc/rcar_dab/rcar_dev.c > create mode 100644 drivers/misc/rcar_dab/rcar_dev.h > create mode 100644 drivers/misc/rcar_dab/rcar_fft.c > create mode 100644 include/uapi/linux/rcar_dab.h -- Regards, Laurent Pinchart