| Message ID | 1597671613-20879-1-git-send-email-grzegorz.jaszczyk@linaro.org |
|---|---|
| Headers | show |
| Series | Add TI PRUSS Local Interrupt Controller IRQChip driver | expand |
On Mon, 17 Aug 2020 15:40:09 +0200, Grzegorz Jaszczyk wrote: > From: Suman Anna <s-anna@ti.com> > > The Programmable Real-Time Unit and Industrial Communication Subsystem > (PRU-ICSS or simply PRUSS) contains an interrupt controller (INTC) that > can handle various system input events and post interrupts back to the > device-level initiators. The INTC can support up to 64 input events on > most SoCs with individual control configuration and h/w prioritization. > These events are mapped onto 10 output interrupt lines through two levels > of many-to-one mapping support. Different interrupt lines are routed to > the individual PRU cores or to the host CPU or to other PRUSS instances. > > The K3 AM65x and J721E SoCs have the next generation of the PRU-ICSS IP, > commonly called ICSSG. The ICSSG interrupt controller on K3 SoCs provide > a higher number of host interrupts (20 vs 10) and can handle an increased > number of input events (160 vs 64) from various SoC interrupt sources. > > Add the bindings document for these interrupt controllers on all the > applicable SoCs. It covers the OMAP architecture SoCs - AM33xx, AM437x > and AM57xx; the Keystone 2 architecture based 66AK2G SoC; the Davinci > architecture based OMAPL138 SoCs, and the K3 architecture based AM65x > and J721E SoCs. > > Signed-off-by: Suman Anna <s-anna@ti.com> > Signed-off-by: Andrew F. Davis <afd@ti.com> > Signed-off-by: Roger Quadros <rogerq@ti.com> > Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org> > --- > v4->v5: > - Fix typo in commit description. > - Update interrupt-cells description regarding each cells meaning. > v3->v4: > - Drop allOf references to interrupt-controller.yaml and > interrupts.yaml. > - Drop items descriptions and use only maxItems: 1 as suggested by Rob. > - Convert irqs-reserved property from uint8-array to bitmask. > - Minor descriptions updates. > - Change interrupt-cells to 3 in order to provide 2-level mapping > description for interrupts routed to the main CPU (as Marc requested). > - Merge the irqs-reserved and irqs-shared to one property since they > can be handled by one logic. > - Drop reviewed-by due to introduced changes. > - Add another example illustrating irqs-reserved property usage. > v2->v3: > - Convert dt-binding to YAML > v1->v2: > - https://patchwork.kernel.org/patch/11069767/ > > update irq-pruss-intc binding > --- > .../interrupt-controller/ti,pruss-intc.yaml | 158 +++++++++++++++++++++ > 1 file changed, 158 insertions(+) > create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml > Reviewed-by: Rob Herring <robh@kernel.org>
Hi All, The following is a v4 version of the series [1-4] that adds an IRQChip driver for the local interrupt controller present within a Programmable Real-Time Unit and Industrial Communication Subsystem (PRU-ICSS) present on a number of TI SoCs including OMAP architecture based AM335x, AM437x, AM57xx SoCs, Keystone 2 architecture based 66AK2G SoCs, Davinci architecture based OMAP-L138/DA850 SoCs and the latest K3 architecture based AM65x and J721E SoCs. Please see the v1 cover-letter [1] for details about the features of this interrupt controller. More details can be found in any of the supported SoC TRMs. Eg: Chapter 30.1.6 of AM5728 TRM [5] Please see the individual patches for exact changes in each patch, following are the main changes from v4: - Update dt-binding description (no functional changes). - Use more meaningful define/variable names, drop redundant error messages, fix error handling in case of irq == 0 (patch #2). [1] https://patchwork.kernel.org/cover/11034561/ [2] https://patchwork.kernel.org/cover/11069749/ [3] https://patchwork.kernel.org/cover/11639055/ [4] https://patchwork.kernel.org/cover/11688727/ [5] http://www.ti.com/lit/pdf/spruhz6 Best regards Grzegorz David Lechner (1): irqchip/irq-pruss-intc: Implement irq_{get,set}_irqchip_state ops Grzegorz Jaszczyk (1): irqchip/irq-pruss-intc: Add a PRUSS irqchip driver for PRUSS interrupts Suman Anna (3): dt-bindings: irqchip: Add PRU-ICSS interrupt controller bindings irqchip/irq-pruss-intc: Add logic for handling reserved interrupts irqchip/irq-pruss-intc: Add support for ICSSG INTC on K3 SoCs .../interrupt-controller/ti,pruss-intc.yaml | 158 +++++ drivers/irqchip/Kconfig | 10 + drivers/irqchip/Makefile | 1 + drivers/irqchip/irq-pruss-intc.c | 658 +++++++++++++++++++++ 4 files changed, 827 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml create mode 100644 drivers/irqchip/irq-pruss-intc.c -- 2.7.4