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dt-bindings: mediatek: Add optional mediatek,gce-events property 

This property is used by gce clients.

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20210622030741.2120393-2-hsinyi@chromium.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Hsin-Yi Wang 2021-06-22 11:07:43 +08:00 committed by Matthias Brugger
parent 02912fb79e
commit ce5db043d2
1 changed files with 15 additions and 0 deletions
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15
Documentation/devicetree/bindings/mailbox/mtk-gce.txt
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@ -35,6 +35,10 @@ Optional properties for a client device:
start_offset: the start offset of register address that GCE can access.
size: the total size of register address that GCE can access.
Optional properties for a client mutex node:
- mediatek,gce-events: GCE events used by clients. The event numbers are
defined in 'dt-bindings/gce/<chip>-gce.h'.
Some vaules of properties are defined in 'dt-bindings/gce/mt8173-gce.h',
'dt-binding/gce/mt8183-gce.h' or 'dt-bindings/gce/mt6779-gce.h'. Such as
sub-system ids, thread priority, event ids.
@ -62,3 +66,14 @@ Example for a client device:
<&gce SUBSYS_1401XXXX 0x2000 0x100>;
...
};
Example for a client mutex node:
mutex: mutex@14020000 {
compatible = "mediatek,mt8173-disp-mutex";
reg = <0 0x14020000 0 0x1000>;
interrupts = <GIC_SPI 169 IRQ_TYPE_LEVEL_LOW>;
power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
clocks = <&mmsys CLK_MM_MUTEX_32K>;
mediatek,gce-events = <CMDQ_EVENT_MUTEX0_STREAM_EOF>,
<CMDQ_EVENT_MUTEX1_STREAM_EOF>;
};