Hi Bjorn, Hi Mathieu, I am writing to follow up on this patch series. This has been on the list for the last 10 days and I have not received any comments on it. So, does this look good to everyone? I had solved the minor checkpatch issues from v2 so I guess this series should be good now? Looking forward to your comments. Thanks Puranjay Mohan On 18/04/22 16:11, Puranjay Mohan wrote: > This is the v3 of the patch series [1]. The v2 had some minor comments > which have been addressed here. > > I will be posting two more patch series which 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/20201216165239.2744-1-grzegorz.jaszczyk@xxxxxxxxxx/ > [2] https://patchwork.kernel.org/project/linux-remoteproc/cover/20220406094358.7895-1-p-mohan@xxxxxx/ > > Thanks, > 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 (2): > remoteproc: pru: Add APIs to get and put the PRU cores > remoteproc: pru: Configure firmware based on client setup > > .../bindings/remoteproc/ti,pru-consumer.yaml | 70 ++++++ > drivers/remoteproc/pru_rproc.c | 234 +++++++++++++++++- > include/linux/pruss.h | 78 ++++++ > 3 files changed, 377 insertions(+), 5 deletions(-) > create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml > create mode 100644 include/linux/pruss.h >
