I have started to review this set, comments will come over the next few days. I will clearly inform you when I am done reviewing. Thanks, Mathieu On Fri, Jun 03, 2022 at 05:45:14PM +0530, Puranjay Mohan wrote: > This is the v4 of the patch series [1]. The v3 had some comments > on the DT patch that have been addressed here. The 6th patch in this > series was missed in the previous versions, so, it has been added now. > > I have posted two more patch series that depend on this series, one to > the soc tree and another to the networking tree. I had sent all the 3 > series, including this one as RFC [2] to get comments and to explain the > dependencies. > > 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 PRUSS subsystem: the PRUSS platform > driver, the PRUSS INTC driver and the PRUSS remoteproc driver. All were > already 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-rproc.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. > > [1] https://patchwork.kernel.org/project/linux-remoteproc/cover/20220418104118.12878-1-p-mohan@xxxxxx/ > [2] https://patchwork.kernel.org/project/linux-remoteproc/cover/20220406094358.7895-1-p-mohan@xxxxxx/ > > Thanks and Regards, > Puranjay Mohan > > Roger Quadros (1): > remoteproc: pru: Add pru_rproc_set_ctable() function > > Suman Anna (2): > dt-bindings: remoteproc: Add PRU consumer bindings > remoteproc: pru: Make sysfs entries read-only for PRU client driven > boots > > Tero Kristo (3): > remoteproc: pru: Add APIs to get and put the PRU cores > remoteproc: pru: Configure firmware based on client setup > remoteproc: pru: add support for configuring GPMUX based on client > setup > > .../bindings/remoteproc/ti,pru-consumer.yaml | 69 +++++ > drivers/remoteproc/pru_rproc.c | 254 +++++++++++++++++- > include/linux/pruss.h | 78 ++++++ > 3 files changed, 396 insertions(+), 5 deletions(-) > create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml > create mode 100644 include/linux/pruss.h > > -- > 2.17.1 >
