diff mbox series

[v3,RESEND,2/2] dt-bindings: mediatek: Add optional mediatek, gce-events property

Message ID 20210622030741.2120393-2-hsinyi@chromium.org (mailing list archive)
State New, archived
Headers show
Series [v3,RESEND,1/2] arm64: dts: mt8183: add mediatek, gce-events in mutex | expand

Commit Message

Hsin-Yi Wang June 22, 2021, 3:07 a.m. UTC 
This property is used by gce clients.

Signed-off-by: Hsin-Yi Wang <hsinyi@chromium.org>
Acked-by: Rob Herring <robh@kernel.org>
---
 .../devicetree/bindings/mailbox/mtk-gce.txt       | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt b/Documentation/devicetree/bindings/mailbox/mtk-gce.txt
index 7771ecaac5868..2ef7ff67cb2b0 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>;
+	};