Re: [PATCH 1/3] binding: irqchip: mtk-cirq: Add binding document
From: Matthias Brugger <hidden>
Date: 2016-10-13 13:00:43
Also in:
linux-arm-kernel, linux-mediatek, lkml
On 10/13/2016 07:06 AM, Youlin Pei wrote:
quoted hunk ↗ jump to hunk
This commit adds the device tree binding document for the mediatek cirq. Signed-off-by: Youlin Pei <youlin.pei-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org> --- base on v4.8-rc1 --- .../interrupt-controller/mediatek,cirq.txt | 30 ++++++++++++++++++++ 1 file changed, 30 insertions(+) create mode 100644 Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txtdiff --git a/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt b/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt new file mode 100644 index 0000000..ad16953 --- /dev/null +++ b/Documentation/devicetree/bindings/interrupt-controller/mediatek,cirq.txt@@ -0,0 +1,30 @@ +* Mediatek 27xx cirq + +In Mediatek SOCs, the CIRQ is a low power interrupt controller designed to +works outside MCUSYS which comprises with Cortex-Ax cores,CCI and GIC. +The external interrupts (outside MCUSYS) will feed through CIRQ and connect +to GIC in MCUSYS. When CIRQ is enabled, it will record the edge-sensitive +interrupts and generated a pulse signal to parent interrupt controller when +flush command is executed. With CIRQ, MCUSYS can be completely turned off +to improve the system power consumption without losing interrupts. + +Required properties: +- compatible: should be: "mediatek,mt2701-cirq".
The cirq is present in several SoCs. I suppose it is the same core in all of them. So we can name it mediatek,mtk-cirq and add a mediatek,mtXXXX-cirq for every SoC, just in case we will need it. Thanks, Matthias -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html