[PATCH v3 2/2] dt-bindings: mediatek: Add optional mediatek,gce-events property
From: Hsin-Yi Wang
Date: Tue May 04 2021 - 01:46:35 EST
This property is used by gce clients.
Signed-off-by: Hsin-Yi Wang <hsinyi@xxxxxxxxxxxx>
---
v2->v3: move definition to Documentation/devicetree/bindings/mailbox/mtk-gce.txt
---
.../devicetree/bindings/mailbox/mtk-gce.txt | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt b/Documentation/devicetree/bindings/mailbox/mtk-gce.txt
index 7771ecaac586..2ef7ff67cb2b 100644
--- a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt
+++ b/Documentation/devicetree/bindings/mailbox/mtk-gce.txt
@@ -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>;
+ };
--
2.31.1.527.g47e6f16901-goog