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Thu, 24 Oct 2024 02:26:52 -0700 Received: from mtkmbs11n2.mediatek.inc (172.21.101.187) by MTKMBS14N2.mediatek.inc (172.21.101.76) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.26; Thu, 24 Oct 2024 17:26:47 +0800 Received: from mtksitap99.mediatek.inc (10.233.130.16) by mtkmbs11n2.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.26 via Frontend Transport; Thu, 24 Oct 2024 17:26:47 +0800 From: Karl.Li To: Jassi Brar , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Karl Li CC: , , , , Chungying Lu , , Karl Li Subject: [PATCH 1/3] dt-bindings: mailbox: mediatek: Add apu-mailbox document Date: Thu, 24 Oct 2024 17:25:43 +0800 Message-ID: <20241024092608.431581-2-karl.li@mediatek.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20241024092608.431581-1-karl.li@mediatek.com> References: <20241024092608.431581-1-karl.li@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--13.460500-8.000000 X-TMASE-MatchedRID: YXgS1C6OPWx/dZAjNXEbFgPZZctd3P4BWjWsWQUWzVoCsxyhR8y7CQaT alM8C773wvUxdKBGcQwRA4hwIn2MDY2WQSzu3zX3T7jCYv2QJPG7atxTbKDEIPufvd3T2+v3oAW Nnmn5m56Neg5tL2+jnh12U5je5b4a7bdBxC9wVFeBlNt4VSGvIV3HHpZF/7mweuOjdf174McfPl xxE3mQszYLbDMMWtWewKX8fpO+yjINsM5qvTUs054CIKY/Hg3AaZGo0EeYG978V77yhJRgo99pj zubZ2rHwrbXMGDYqV8kL2NLniq3NVDiHpFdHheQuDMYOBqTn6YXj2OqpTl9ta7mcBhy8Pft X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--13.460500-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: DBEC2FDE3AEB68C307DBA82FD95F9BB603F9FAFD5EF28C10EC52C826E39BFB0E2000:8 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241024_022658_339903_AEA2302D X-CRM114-Status: GOOD ( 13.18 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Karl Li Add apu-mailbox dt-binding document. Signed-off-by: Karl Li --- .../mailbox/mediatek,apu-mailbox.yaml | 55 +++++++++++++++++++ 1 file changed, 55 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/mediatek,apu-mailbox.yaml diff --git a/Documentation/devicetree/bindings/mailbox/mediatek,apu-mailbox.yaml b/Documentation/devicetree/bindings/mailbox/mediatek,apu-mailbox.yaml new file mode 100644 index 000000000000..cb4530799bef --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/mediatek,apu-mailbox.yaml @@ -0,0 +1,55 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/mediatek,apu-mailbox.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MediaTek APU mailbox + +maintainers: + - Karl Li + +description: + The MediaTek APU-Mailbox facilitates communication with the + APU microcontroller. Within the MediaTek APU subsystem, a + message passing mechanism is built on top of the mailbox system. + The mailbox only has limited space for each message. The firmware + expects the message header from the mailbox, while the message body + is passed through some fixed shared memory. + +properties: + compatible: + enum: + - mediatek,mt8188-apu-mailbox + - mediatek,mt8196-apu-mailbox + + "#mbox-cells": + const: 1 + description: + The cell describe which channel the device will use. + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - "#mbox-cells" + - reg + - interrupts + +additionalProperties: false + +examples: + - | + #include + #include + + apu_mailbox: mailbox@4c200000 { + compatible = "mediatek,mt8196-apu-mailbox"; + reg = <0 0x4c200000 0 0xfffff>; + interrupts = ; + #mbox-cells = <1>; + };