[PATCH 3/9] dt-bindings: interrupt-controller: arm,gic-v3: Describe ESPI range support

From: Marc Zyngier
Date: Tue Jul 23 2019 - 06:45:04 EST


GICv3.1 introduces support for new interrupt ranges, one of them being
the Extended SPI range (ESPI). The DT binding is extended to deal with
it as a new interrupt class.

Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
---
.../devicetree/bindings/interrupt-controller/arm,gic-v3.yaml | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
index c34df35a25fc..98a3ecda8e07 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/arm,gic-v3.yaml
@@ -44,11 +44,12 @@ properties:
be at least 4.

The 1st cell is the interrupt type; 0 for SPI interrupts, 1 for PPI
- interrupts. Other values are reserved for future use.
+ interrupts, 2 for interrupts in the Extended SPI range. Other values
+ are reserved for future use.

The 2nd cell contains the interrupt number for the interrupt type.
SPI interrupts are in the range [0-987]. PPI interrupts are in the
- range [0-15].
+ range [0-15]. Extented SPI interrupts are in the range [0-1023].

The 3rd cell is the flags, encoded as follows:
bits[3:0] trigger type and level flags.
--
2.20.1