Hi Mathieu, On 1/6/21 5:27 PM, Mathieu Poirier wrote: > On Wed, Dec 16, 2020 at 05:52:34PM +0100, Grzegorz Jaszczyk 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 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. >> >> Patch #3 of this series depends on one not merged remteproc related patch [1]. >> >> Please see the individual patches for exact changes in each patch, following is >> the only change from v1: >> - Change the 'prus' property name to 'ti,prus' as suggested by Rob Herring, >> which influences patch #1 and patch #2 >> >> [1] https://patchwork.kernel.org/project/linux-remoteproc/patch/20201121030156.22857-3-s-anna@xxxxxx/ >> >> Best regards, >> Grzegorz >> >> Roger Quadros (1): >> remoteproc: pru: Add pru_rproc_set_ctable() function >> >> Suman Anna (2): >> dt-bindings: remoteproc: Add PRU consumer bindings >> remoteproc: pru: Deny rproc sysfs ops 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 | 64 +++++ >> drivers/remoteproc/pru_rproc.c | 221 +++++++++++++++++- >> include/linux/pruss.h | 78 +++++++ > > This patchset is giving checkpatch.pl errors and as such will not go further > with this revision. Yeah, I am aware of those. Greg has intentionally skipped the checkpatch warnings around ENOTSUPP, based on some similar discussion on a different patch, https://lkml.org/lkml/2020/11/10/764. Let me know if you prefer that we change these to EOPNOTSUPP. regards Suman > >> 3 files changed, 360 insertions(+), 3 deletions(-) >> create mode 100644 Documentation/devicetree/bindings/remoteproc/ti,pru-consumer.yaml >> create mode 100644 include/linux/pruss.h >> >> -- >> 2.29.0 >>
