From fdf6287d0d5f796637c69d1da84eebe6f35adf90 Mon Sep 17 00:00:00 2001
From: Sankalp Negi <snegi@qti.qualcomm.com>
Date: Wed, 3 Jun 2026 02:35:53 -0700
Subject: [PATCH 1/2] QCLINUX: dt-bindings: mailbox: qcom-ipcc: Add SAIL client
 IDs

Add IPCC_CLIENT_SAIL0/1/2/3 client ID definitions (27-30) to
the qcom-ipcc dt-bindings header for use by the SAIL Mailbox
device tree overlay.

Signed-off-by: Sankalp Negi <snegi@qti.qualcomm.com>
---
 include/dt-bindings/mailbox/qcom-ipcc.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/dt-bindings/mailbox/qcom-ipcc.h b/include/dt-bindings/mailbox/qcom-ipcc.h
index dc07ca27db09d..abf45bd31ed86 100644
--- a/include/dt-bindings/mailbox/qcom-ipcc.h
+++ b/include/dt-bindings/mailbox/qcom-ipcc.h
@@ -33,6 +33,10 @@
 #define IPCC_CLIENT_NSP1		18
 #define IPCC_CLIENT_TME			23
 #define IPCC_CLIENT_WPSS		24
+#define IPCC_CLIENT_SAIL0		27
+#define IPCC_CLIENT_SAIL1		28
+#define IPCC_CLIENT_SAIL2		29
+#define IPCC_CLIENT_SAIL3		30
 #define IPCC_CLIENT_GPDSP0		31
 #define IPCC_CLIENT_GPDSP1		32
 

From 7eebc3ec2bbf6e5cd3b5983c9b34ff3d28ea4949 Mon Sep 17 00:00:00 2001
From: Sankalp Negi <snegi@qti.qualcomm.com>
Date: Wed, 3 Jun 2026 02:35:53 -0700
Subject: [PATCH 2/2] QCLINUX: arm64: dts: qcom: lemans: Add SAIL Mailbox
 device tree overlay

Add lemans-sail-mb.dtso overlay for Lemans platform providing:
  - ipcc_computeL1: IPCC Compute-L1 controller
  - sail_mailbox: SAIL Mailbox device node.

Signed-off-by: Sankalp Negi <snegi@qti.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/Makefile            |  1 +
 arch/arm64/boot/dts/qcom/lemans-sail-mb.dtso | 65 ++++++++++++++++++++
 2 files changed, 66 insertions(+)
 create mode 100644 arch/arm64/boot/dts/qcom/lemans-sail-mb.dtso

diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
index aaff07ef8087e..4633ac0e08e7e 100644
--- a/arch/arm64/boot/dts/qcom/Makefile
+++ b/arch/arm64/boot/dts/qcom/Makefile
@@ -465,6 +465,7 @@ dtb-$(CONFIG_ARCH_QCOM)	+= lemans-camx-el2.dtb
 dtb-$(CONFIG_ARCH_QCOM)	+= lemans-evk-staging.dtbo
 
 dtb-$(CONFIG_ARCH_QCOM)	+= lemans-staging.dtbo
+dtb-$(CONFIG_ARCH_QCOM)	+= lemans-sail-mb.dtbo
 
 monaco-evk-camx-dtbs   := monaco-evk.dtb monaco-evk-camx.dtbo
 
diff --git a/arch/arm64/boot/dts/qcom/lemans-sail-mb.dtso b/arch/arm64/boot/dts/qcom/lemans-sail-mb.dtso
new file mode 100644
index 0000000000000..806d7712542bf
--- /dev/null
+++ b/arch/arm64/boot/dts/qcom/lemans-sail-mb.dtso
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/*
+ * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries.
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/mailbox/qcom-ipcc.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+&soc {
+	ipcc_computeL1: qcom,ipcc@488000 {
+		compatible = "qcom,ipcc";
+		reg = <0x0 0x00488000 0x0 0x1000>;
+		interrupts = <GIC_SPI 231 IRQ_TYPE_LEVEL_HIGH>;
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		#mbox-cells = <2>;
+		num_mbox_chans = <5>;
+	};
+
+	sail_mailbox: sail-mailbox@1ffe02c {
+		compatible = "qcom,sail-mailbox";
+		reg = <0x0 0x01FFE02C 0x0 0x10>,
+		      <0x0 0x01FFD018 0x0 0x10>,
+		      <0x0 0x17C0000C 0x0 0x04>;
+		mboxes = <&ipcc_computeL1 IPCC_CLIENT_SAIL0 0x2>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL1 0x3>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL0 0x4>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL0 0x5>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL0 0x6>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL0 0x7>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL2 0x8>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL1 0x9>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL2 0xa>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL1 0xb>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL0 0xc>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL0 0xd>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL1 0xe>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL2 0xf>,
+			 <&ipcc_computeL1 IPCC_CLIENT_SAIL3 0x10>;
+		memory-region = <&sail_mailbox_mem>,
+				<&sail_ota_mem>;
+		interrupt-parent = <&ipcc_computeL1>;
+		interrupts = <IPCC_CLIENT_SAIL0 0x2 IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL1 0x3 IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL0 0x4 IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL0 0x5 IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL0 0x6 IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL0 0x7 IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL2 0x8 IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL1 0x9 IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL2 0xa IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL1 0xb IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL0 0xc IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL0 0xd IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL1 0xe IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL2 0xf IRQ_TYPE_EDGE_RISING>,
+			     <IPCC_CLIENT_SAIL3 0x10 IRQ_TYPE_EDGE_RISING>;
+		sail-handshake-delay = <50000>;
+		status = "okay";
+	};
+};