linux-kernel - [PATCH 2/2] dt-bindings: PCI: mediatek-gen3: Add support for controlling power and reset

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Message-ID: <20230111032830.20447-3-jian.yang@mediatek.com>
Date:   Wed, 11 Jan 2023 11:28:30 +0800
From:   Jian Yang <jian.yang@...iatek.com>
To:     Lorenzo Pieralisi <lpieralisi@...nel.org>,
        Jianjun Wang <jianjun.wang@...iatek.com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Ryder Lee <ryder.lee@...iatek.com>,
        Krzysztof Wilczyński <kw@...ux.com>
CC:     <linux-pci@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        <jian.yang@...iatek.com>, <chuanjia.liu@...iatek.com>,
        <jieyy.yang@...iatek.com>, <qizhong.cheng@...iatek.com>,
        <rex-bc.chen@...iatek.com>, <david-yh.chiu@...iatek.com>
Subject: [PATCH 2/2] dt-bindings: PCI: mediatek-gen3: Add support for controlling power and reset

From: "jian.yang" <jian.yang@...iatek.com>

Add new properties to support control power supplies and reset pin of
a downstream component.

Signed-off-by: jian.yang <jian.yang@...iatek.com>
---
 .../bindings/pci/mediatek-pcie-gen3.yaml      | 23 +++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
index 7e8c7a2a5f9b..46149cc63989 100644
--- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
+++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
@@ -84,6 +84,29 @@ properties:
     items:
       enum: [ phy, mac ]
 
+  pcie1v8-supply:
+    description:
+      The regulator phandle that provides 1.8V power to downstream component.
+
+  pcie3v3-supply:
+    description:
+      The regulator phandle that provides 3.3V power to downstream component.
+
+  pcie12v-supply:
+    description:
+      The regulator phandle that provides 12V power to downstream component.
+
+  dsc-reset-gpios:
+    description:
+      The reset GPIO of a downstream component.
+    maxItems: 1
+
+  dsc-reset-msleep:
+    description:
+      The delay time between assertion and de-assertion of a downstream
+      component's reset GPIO.
+    maxItems: 1
+
   clocks:
     minItems: 4
     maxItems: 6
-- 
2.18.0