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Mon, 1 Mar 2021 14:50:32 +0000 From: Fabrizio Castro To: Laurent Pinchart Subject: RE: [PATCH 0/7] Add FFT Support for R-Car Gen3 devices Thread-Topic: [PATCH 0/7] Add FFT Support for R-Car Gen3 devices Thread-Index: AQHXC8jtZRf9eazPyUyQ9uR0bT8rzqpqXA4AgATf7cA= Date: Mon, 1 Mar 2021 14:50:32 +0000 Message-ID: References: <20210225225147.29920-1-fabrizio.castro.jz@renesas.com> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: ideasonboard.com; dkim=none (message not signed) header.d=none;ideasonboard.com; dmarc=none action=none header.from=renesas.com; x-originating-ip: [2.28.163.123] x-ms-publictraffictype: Email x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 24cbaf76-fddc-40d6-d0db-08d8dcc15d44 x-ms-traffictypediagnostic: OSBPR01MB4600: x-ld-processed: 53d82571-da19-47e4-9cb4-625a166a4a2a,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:9508; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi Laurent, Thank you for your feedback! > From: Laurent Pinchart > Sent: 26 February 2021 12:21 > Subject: Re: [PATCH 0/7] Add FFT Support for R-Car Gen3 devices > > 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 ? I haven't tried using it that way but I don't think so. Thanks, Fab > > > 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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel