linux-kernel - [PATCH v1 2/4] dt-binding: ata: tegra: Add dt-binding documentation for Tegra186

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Message-ID: <1604628968-1501-3-git-send-email-skomatineni@nvidia.com>
Date:   Thu, 5 Nov 2020 18:16:06 -0800
From:   Sowjanya Komatineni <skomatineni@...dia.com>
To:     <skomatineni@...dia.com>, <thierry.reding@...il.com>,
        <jonathanh@...dia.com>, <robh+dt@...nel.org>
CC:     <devicetree@...r.kernel.org>, <linux-ide@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v1 2/4] dt-binding: ata: tegra: Add dt-binding documentation for Tegra186

This patch adds dt-bindings documentation for Tegra186 AHCI
controller.

Signed-off-by: Sowjanya Komatineni <skomatineni@...dia.com>
---
 .../devicetree/bindings/ata/nvidia,tegra-ahci.yaml | 47 ++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml b/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
index ac20f6e..db382a0 100644
--- a/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
+++ b/Documentation/devicetree/bindings/ata/nvidia,tegra-ahci.yaml
@@ -16,6 +16,7 @@ properties:
       - nvidia,tegra124-ahci
       - nvidia,tegra132-ahci
       - nvidia,tegra210-ahci
+      - nvidia,tegra186-ahci
 
   reg:
     minItems: 2
@@ -41,14 +42,37 @@ properties:
       See ../clocks/clock-bindings.txt for details.
 
   reset-names:
+    minItems: 2
     maxItems: 3
 
   resets:
+    minItems: 2
     maxItems: 3
     description:
       Must contain an entry for each entry in reset-names.
       See ../reset/reset.txt for details.
 
+  iommus:
+    maxItems: 1
+    description:
+      A reference to the IOMMU. See ../iommu/iommu.txt for details.
+
+  interconnect-names:
+    items:
+      - const: dma-mem
+      - const: write
+
+  interconnects:
+    maxItems: 2
+    description:
+      Pairs of phandles and interconnect provider specififer to denote
+      the edge source and destination ports of the interconnect path.
+      See ../interconnect/interconnect.txt for details.
+
+  power-domains:
+    items:
+      - description: SAX power-domain
+
   phy-names:
     items:
       - const: sata-0
@@ -129,6 +153,29 @@ allOf:
         resets:
           minItems: 3
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - nvidia,tegra186-ahci
+    then:
+      properties:
+        reg:
+          minItems: 3
+        reset-names:
+          maxItems: 2
+          items:
+            - const: sata
+            - const: sata-cold
+        resets:
+          maxItems: 2
+      required:
+        - iommus
+        - interconnect-names
+        - interconnects
+        - power-domains
+
 additionalProperties: true
 
 examples:
-- 
2.7.4