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1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
4 ---
5 $id: http://devicetree.org/schemas/mailbox/amlogic,meson-gxbb-mhu.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Amlogic Meson Message-Handling-Unit Controller
11 - Neil Armstrong <[email protected]>
14 The Amlogic's Meson SoCs Message-Handling-Unit (MHU) is a mailbox controller
15 that has 3 independent channels/links to communicate with remote processor(s).
17 received data. However, there is no specified way of knowing if the sent
18 data has been read by the remote. This driver assumes the sender polls
19 STAT register and the remote clears it after having read the data.
24 - amlogic,meson-gxbb-mhu
35 "#mbox-cells":
39 - compatible
40 - reg
41 - interrupts
42 - "#mbox-cells"
47 - |
49 compatible = "amlogic,meson-gxbb-mhu";
52 #mbox-cells = <1>;