linux-kernel - [PATCH 3/4] [PATCH 3/4] dt-bindings: cp110: Document the reset controller

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Message-ID: <20250214065833.530276-5-dingwei@marvell.com>
Date: Thu, 13 Feb 2025 22:58:32 -0800
From: Wilson Ding <dingwei@...vell.com>
To: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC: <andrew@...n.ch>, <gregory.clement@...tlin.com>,
        <sebastian.hesselbarth@...il.com>, <robh@...nel.org>,
        <krzk+dt@...nel.org>, <conor+dt@...nel.org>, <p.zabel@...gutronix.de>,
        <salee@...vell.com>, <gakula@...vell.com>,
        Wilson Ding <dingwei@...vell.com>
Subject: [PATCH 3/4] [PATCH 3/4] dt-bindings: cp110: Document the reset controller

Add new compatible to be used for CP110's reset controller, and document
the supported reset lines.

Signed-off-by: Wilson Ding <dingwei@...vell.com>
---
 .../arm/marvell/cp110-system-controller.txt   | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
index 9d5d70c98058..a5cc1360969c 100644
--- a/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/cp110-system-controller.txt
@@ -190,6 +190,38 @@ CP110_LABEL(syscon0): system-controller@...000 {
 
 };
 
+Reset:
+------
+
+The Device Tree node representing this System Controller 0 provides a
+number of reset lines:
+
+The following reset lines are available:
+
+-  0: Audio Software RESETn
+-  1: TDM Software RESETn
+-  2: Interrupt controller unit Software RESETn
+-  3: Packet processor Software RESETn
+-  4: SDIO Software RESETn
+-  7: XOR-1 engine Software RESETn
+-  8: XOR-0 engine Software RESETn
+- 11: PCIe-0 Gen.3 x1 Software RESETn
+- 12: PCIe-1 Gen.3 x1 Software RESETn
+- 13: PCIe Gen.3 x4 Software RESETn
+- 15: SATA port 0 and port 1 Software RESETn
+- 22: USB3 Host 0 Software RESETn
+- 23: USB3 Host 1 Software RESETn
+- 24: USB3 Device Software RESETn
+- 25: EIP150F Software RESETn
+- 26: EIP197 Software RESETn
+- 29: MSS Software RESETn
+
+Required properties:
+
+ - compatible: must be:
+     "marvell,armada8k-reset"
+ - #reset-cells: must be set to 1
+
 SYSTEM CONTROLLER 1
 ===================
 
-- 
2.43.0