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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt | |
parent | Initial commit. (diff) | |
download | linux-430c2fc249ea5c0536abd21c23382884005c9093.tar.xz linux-430c2fc249ea5c0536abd21c23382884005c9093.zip |
Adding upstream version 5.10.209.upstream/5.10.209upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt')
-rw-r--r-- | Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt b/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt new file mode 100644 index 000000000..ced601406 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/st,sti-irq-syscfg.txt @@ -0,0 +1,35 @@ +STMicroelectronics STi System Configuration Controlled IRQs +----------------------------------------------------------- + +On STi based systems; External, CTI (Core Sight), PMU (Performance Management), +and PL310 L2 Cache IRQs are controlled using System Configuration registers. +This driver is used to unmask them prior to use. + +Required properties: +- compatible : Should be set to one of: + "st,stih415-irq-syscfg" + "st,stih416-irq-syscfg" + "st,stih407-irq-syscfg" + "st,stid127-irq-syscfg" +- st,syscfg : Phandle to Cortex-A9 IRQ system config registers +- st,irq-device : Array of IRQs to enable - should be 2 in length +- st,fiq-device : Array of FIQs to enable - should be 2 in length + +Optional properties: +- st,invert-ext : External IRQs can be inverted at will. This property inverts + these IRQs using bitwise logic. A number of defines have been + provided for convenience: + ST_IRQ_SYSCFG_EXT_1_INV + ST_IRQ_SYSCFG_EXT_2_INV + ST_IRQ_SYSCFG_EXT_3_INV +Example: + +irq-syscfg { + compatible = "st,stih416-irq-syscfg"; + st,syscfg = <&syscfg_cpu>; + st,irq-device = <ST_IRQ_SYSCFG_PMU_0>, + <ST_IRQ_SYSCFG_PMU_1>; + st,fiq-device = <ST_IRQ_SYSCFG_DISABLED>, + <ST_IRQ_SYSCFG_DISABLED>; + st,invert-ext = <(ST_IRQ_SYSCFG_EXT_1_INV | ST_IRQ_SYSCFG_EXT_3_INV)>; +}; |