[PATCHv3,0/6] Add TI PRUSS Local Interrupt Controller IRQChip driver

Message

Grzegorz Jaszczyk July 2, 2020, 2:17 p.m. UTC

Hi All,

The following is a v3 version of the series [1][2] 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 [3]

Please see the individual patches for exact changes in each patch, following are
the main changes from v2:
 - Convert dt-binding to YAML (patch #1).
 - Address comments from Marc Zyngier regarding patch #2 and update following
   patches due to those changes.
 - Dropped the custom helper functions used for interrupt configuration outside
   of irq driver [4]. Introduce new patch (patch 6) which uses xlate and irq
   domain mapping functionality in order to map system event through 2 levels of
   many-to-one mapping i.e.  events to channel mapping and channels to host
   interrupts.

[1] https://patchwork.kernel.org/cover/11034561/
[2] https://patchwork.kernel.org/cover/11069749/
[3] http://www.ti.com/lit/pdf/spruhz6
[4] https://patchwork.kernel.org/patch/11069751/

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 event mapping support

Suman Anna (4):
  dt-bindings: irqchip: Add PRU-ICSS interrupt controller bindings
  irqchip/irq-pruss-intc: Add a PRUSS irqchip driver for PRUSS
    interrupts
  irqchip/irq-pruss-intc: Add support for shared and invalid interrupts
  irqchip/irq-pruss-intc: Add support for ICSSG INTC on K3 SoCs

 .../interrupt-controller/ti,pruss-intc.yaml        | 135 ++++
 drivers/irqchip/Kconfig                            |  10 +
 drivers/irqchip/Makefile                           |   1 +
 drivers/irqchip/irq-pruss-intc.c                   | 717 +++++++++++++++++++++
 4 files changed, 863 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/interrupt-controller/ti,pruss-intc.yaml
 create mode 100644 drivers/irqchip/irq-pruss-intc.c