From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2C19EC433EF for ; Fri, 8 Oct 2021 08:40:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 13CAA61040 for ; Fri, 8 Oct 2021 08:40:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235480AbhJHImq (ORCPT ); Fri, 8 Oct 2021 04:42:46 -0400 Received: from mailgw02.mediatek.com ([210.61.82.184]:45680 "EHLO mailgw02.mediatek.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S236195AbhJHImc (ORCPT ); Fri, 8 Oct 2021 04:42:32 -0400 X-UUID: 640cd50e4be74a288750845f5a7eac3d-20211008 X-UUID: 640cd50e4be74a288750845f5a7eac3d-20211008 Received: from mtkexhb01.mediatek.inc [(172.21.101.102)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1160262783; Fri, 08 Oct 2021 16:40:34 +0800 Received: from mtkexhb02.mediatek.inc (172.21.101.103) by mtkmbs07n1.mediatek.inc (172.21.101.16) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 8 Oct 2021 16:40:33 +0800 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkexhb02.mediatek.inc (172.21.101.103) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Fri, 8 Oct 2021 16:40:32 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Fri, 8 Oct 2021 16:40:32 +0800 From: Allen-KH Cheng To: Jassi Brar , Rob Herring , Matthias Brugger CC: , , , , , Allen-KH Cheng Subject: [PATCH v2] dt-bindings: mediatek: add adsp-mbox document Date: Fri, 8 Oct 2021 16:40:30 +0800 Message-ID: <20211008084030.2439-1-Allen-KH.Cheng@mediatek.com> X-Mailer: git-send-email 2.18.0 MIME-Version: 1.0 Content-Type: text/plain X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch adds document for mediatek adsp mbox Signed-off-by: Allen-KH Cheng --- .../bindings/mailbox/mtk,adsp-mbox.yaml | 76 +++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml diff --git a/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml b/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml new file mode 100644 index 000000000000..9028e403ceda --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/mtk,adsp-mbox.yaml @@ -0,0 +1,76 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/mtk,adsp-mbox.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Mediatek ADSP mailbox + +maintainers: + - Allen-KH Cheng + +description: | + The MTK ADSP mailbox Inter-Processor Communication (IPC) enables the SoC + to ommunicate with ADSP by passing messages through two mailbox channels. + The MTK ADSP mailbox IPC also provides the ability for one processor to + signal the other processor using interrupts. + + mbox0 is handling ipc reply + mbox1 is handling ipc request + +properties: + compatible: + items: + - const: mediatek,mt8195-adsp-mbox + + "#mbox-cells": + const: 1 + + reg: + description: + Physical address base for dsp mbox base registers. + maxItems: 2 + minItems: 2 + + reg-names: + items: + - const: reg_mbox0 + - const: reg_mbox1 + + interrupts: + description: + adsp mbox interrupt + maxItems: 2 + minItems: 2 + + interrupt-names: + items: + - const: irq_mbox0 + - const: irq_mbox1 + +required: + - compatible + - "#mbox-cells" + - reg + - reg-names + - interrupts + - interrupt-names + +additionalProperties: false + +examples: + - | + #include + #include + + adsp_mailbox:adsp_mailbox@10816000 { + compatible = "mediatek,mt8195-adsp-mbox"; + #mbox-cells = <1>; + reg = <0x10816000 0x1000>, + <0x10817000 0x1000>; + reg-names = "reg_mbox0", "reg_mbox1"; + interrupts = , + ; + interrupt-names = "irq_mbox0", "irq_mbox1"; + }; + -- 2.18.0