linux-kernel - [PATCH v6 07/11] dt-bindings: PCI: rcar: Add bindings for R-Car PCIe endpoint controller

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Message-Id: <1585856319-4380-8-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com>
Date:   Thu,  2 Apr 2020 20:38:35 +0100
From:   Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        linux-pci@...r.kernel.org
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>, Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Murray <andrew.murray@....com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-renesas-soc@...r.kernel.org,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Frank Rowand <frowand.list@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Simon Horman <horms@...ge.net.au>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Tom Joseph <tjoseph@...ence.com>,
        Heiko Stuebner <heiko@...ech.de>,
        linux-rockchip@...ts.infradead.org,
        Lad Prabhakar <prabhakar.csengg@...il.com>,
        Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: [PATCH v6 07/11] dt-bindings: PCI: rcar: Add bindings for R-Car PCIe endpoint controller

This patch adds the bindings for the R-Car PCIe endpoint driver.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Reviewed-by: Rob Herring <robh@...nel.org>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>
---
 .../devicetree/bindings/pci/rcar-pci-ep.yaml  | 76 +++++++++++++++++++
 1 file changed, 76 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml

diff --git a/Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml b/Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml
new file mode 100644
index 000000000000..07cd5a7325d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/rcar-pci-ep.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020 Renesas Electronics Europe GmbH - https://www.renesas.com/eu/en/
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/rcar-pci-ep.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Renesas R-Car PCIe Endpoint
+
+maintainers:
+  - Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
+
+properties:
+  compatible:
+    items:
+      - const: renesas,r8a774c0-pcie-ep
+      - const: renesas,rcar-gen3-pcie-ep
+
+  reg:
+    maxItems: 5
+
+  reg-names:
+    items:
+      - const: apb-base
+      - const: memory0
+      - const: memory1
+      - const: memory2
+      - const: memory3
+
+  power-domains:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    items:
+      - const: pcie
+
+  max-functions:
+    minimum: 1
+    maximum: 6
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - resets
+  - power-domains
+  - clocks
+  - clock-names
+  - max-functions
+
+examples:
+  - |
+    #include <dt-bindings/clock/r8a774c0-cpg-mssr.h>
+    #include <dt-bindings/power/r8a774c0-sysc.h>
+
+     pcie0_ep: pcie-ep@...00000 {
+            compatible = "renesas,r8a774c0-pcie-ep",
+                         "renesas,rcar-gen3-pcie-ep";
+            reg = <0 0xfe000000 0 0x80000>,
+                  <0x0 0xfe100000 0 0x100000>,
+                  <0x0 0xfe200000 0 0x200000>,
+                  <0x0 0x30000000 0 0x8000000>,
+                  <0x0 0x38000000 0 0x8000000>;
+            reg-names = "apb-base", "memory0", "memory1", "memory2", "memory3";
+            resets = <&cpg 319>;
+            power-domains = <&sysc R8A774C0_PD_ALWAYS_ON>;
+            clocks = <&cpg CPG_MOD 319>;
+            clock-names = "pcie";
+            max-functions = /bits/ 8 <1>;
+    };
-- 
2.20.1