cmdq driver provide a function that get the relationship of sub system number from device node for client. add specification for #subsys-cells, mediatek,gce-subsys. Signed-off-by: Bibby Hsieh <bibby.hsieh@xxxxxxxxxxxx> --- Documentation/devicetree/bindings/mailbox/mtk-gce.txt | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt b/Documentation/devicetree/bindings/mailbox/mtk-gce.txt index 812698f..07b2adf 100644 --- a/Documentation/devicetree/bindings/mailbox/mtk-gce.txt +++ b/Documentation/devicetree/bindings/mailbox/mtk-gce.txt @@ -26,6 +26,13 @@ Required properties: phandle: Label name of a gce node. event_number: the event number defined in 'dt-bindings/gce/mt8173-gce.h' or 'dt-binding/gce/mt8183-gce.h'. +#subsys-cells: Should be 2. + <&phandle register_base_address subsys_number> + phandle: Label name of a gce node. + register_base_address: the register base address that client + want to write or read. + subsys_number: specify the sub-system id which is corresponding + to the register address. Required properties for a client device: - mboxes: Client use mailbox to communicate with GCE, it should have this @@ -50,6 +57,7 @@ Example: thread-num = CMDQ_THR_MAX_COUNT; #mbox-cells = <3>; #event-cells = <1>; + #subsys-cells = <2>; }; Example for a client device: @@ -58,7 +66,8 @@ Example for a client device: compatible = "mediatek,mt8173-mmsys"; mboxes = <&gce 0 CMDQ_THR_PRIO_LOWEST 1>, <&gce 1 CMDQ_THR_PRIO_LOWEST 1>; - mediatek,gce-subsys = <SUBSYS_1400XXXX>; + mediatek,gce-subsys = <&gce 0x14000000 SUBSYS_1400XXXX>, + <&gce 0x14010000 SUBSYS_1401XXXX>; mediatek,gce-event-names = "rdma0_sof", "rsz0_sof"; mediatek,gce-events = <&gce CMDQ_EVENT_MDP_RDMA0_SOF>, -- 1.9.1
