linux-kernel - Re: [PATCH v5 0/5] Introduce PRU platform consumer API

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Message-ID: <4c9276e4-0c00-d2e9-bf9d-08cc73a75b6f@ti.com>
Date:   Fri, 24 Mar 2023 12:43:36 +0530
From:   Md Danish Anwar <a0501179@...com>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>,
        MD Danish Anwar <danishanwar@...com>
CC:     <linux-remoteproc@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
        <srk@...com>, <devicetree@...r.kernel.org>,
        <netdev@...r.kernel.org>, Santosh Shilimkar <ssantosh@...nel.org>,
        Nishanth Menon <nm@...com>, Tero Kristo <kristo@...nel.org>,
        Roger Quadros <rogerq@...nel.org>,
        "Andrew F. Davis" <afd@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Suman Anna <s-anna@...com>,
        Bjorn Andersson <andersson@...nel.org>
Subject: Re: [PATCH v5 0/5] Introduce PRU platform consumer API

Hi Mathieu,

On 23/03/23 11:54, MD Danish Anwar wrote:
> Hi All,
> The Programmable Real-Time Unit and Industrial Communication Subsystem (PRU-ICSS
> or simply PRUSS) on various TI SoCs consists of dual 32-bit RISC cores
> (Programmable Real-Time Units, or PRUs) for program execution.
> 
> There are 3 foundation components for TI PRUSS subsystem: the PRUSS platform
> driver, the PRUSS INTC driver and the PRUSS remoteproc driver. All of them have
> already been merged and can be found under:
> 1) drivers/soc/ti/pruss.c
>    Documentation/devicetree/bindings/soc/ti/ti,pruss.yaml
> 2) drivers/irqchip/irq-pruss-intc.c
>    Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml
> 3) drivers/remoteproc/pru_rproc.c
>    Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml
> 
> The programmable nature of the PRUs provide flexibility to implement custom
> peripheral interfaces, fast real-time responses, or specialized data handling.
> Example of a PRU consumer drivers will be: 
>   - Software UART over PRUSS
>   - PRU-ICSS Ethernet EMAC
> 
> In order to make usage of common PRU resources and allow the consumer drivers 
> to configure the PRU hardware for specific usage the PRU API is introduced.
>
Roger has given his RBs for all the patches in this series. Tony has also given
his RB.

Can you please have a look at this series.

-- 
Thanks and Regards,
Danish.