diff mbox series

[v5,2/5] dt-bindings: PCI: add snps,dw-pcie-ep.yaml

Message ID 26025b256232c2e4bd91954907b9d92db27199a3.1626608375.git.mchehab+huawei@kernel.org (mailing list archive)
State Not Applicable
Delegated to: Lorenzo Pieralisi
Headers show
Series convert designware-pcie.txt to yaml | expand

Commit Message

Mauro Carvalho Chehab July 18, 2021, 11:40 a.m. UTC 
Currently, the designware schema is defined on a text file:
	designware-pcie.txt

It contains two separate schemas on it:

- snps,dw-pcie
  This one uses the pci-bus.yaml schema;
- snps,dw-pcie-ep
  This one uses the pci-ep.yaml schema.

As the:
	AllOf:
	  - $ref: <foo>

for the endpoint part is different than the PCI one, place
it on a separate yaml file.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
---
 .../bindings/pci/snps,dw-pcie-ep.yaml         | 90 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 91 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml

Comments

Rob Herring (Arm) July 19, 2021, 10:02 p.m. UTC | #1 
On Sun, 18 Jul 2021 13:40:49 +0200, Mauro Carvalho Chehab wrote:
> Currently, the designware schema is defined on a text file:
> 	designware-pcie.txt
> 
> It contains two separate schemas on it:
> 
> - snps,dw-pcie
>   This one uses the pci-bus.yaml schema;
> - snps,dw-pcie-ep
>   This one uses the pci-ep.yaml schema.
> 
> As the:
> 	AllOf:
> 	  - $ref: <foo>
> 
> for the endpoint part is different than the PCI one, place
> it on a separate yaml file.
> 
> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
> ---
>  .../bindings/pci/snps,dw-pcie-ep.yaml         | 90 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 91 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
> 

Applied, thanks!
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
new file mode 100644
index 000000000000..b5935b1b153f
--- /dev/null
+++ b/Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
@@ -0,0 +1,90 @@ 
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pci/snps,dw-pcie-ep.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Synopsys DesignWare PCIe endpoint interface
+
+maintainers:
+  - Jingoo Han <jingoohan1@gmail.com>
+  - Gustavo Pimentel <gustavo.pimentel@synopsys.com>
+
+description: |
+  Synopsys DesignWare PCIe host controller endpoint
+
+allOf:
+  - $ref: /schemas/pci/pci-ep.yaml#
+
+properties:
+  compatible:
+    anyOf:
+      - {}
+      - const: snps,dw-pcie-ep
+
+  reg:
+    description: |
+      It should contain Data Bus Interface (dbi) and config registers for all
+      versions.
+      For designware core version >= 4.80, it may contain ATU address space.
+    minItems: 2
+    maxItems: 4
+
+  reg-names:
+    minItems: 2
+    maxItems: 4
+    items:
+      enum: [dbi, dbi2, config, atu, addr_space, link, atu_dma, appl]
+
+  reset-gpio:
+    description: GPIO pin number of PERST# signal
+    maxItems: 1
+    deprecated: true
+
+  reset-gpios:
+    description: GPIO controlled connection to PERST# signal
+    maxItems: 1
+
+  snps,enable-cdm-check:
+    type: boolean
+    description: |
+      This is a boolean property and if present enables
+      automatic checking of CDM (Configuration Dependent Module) registers
+      for data corruption. CDM registers include standard PCIe configuration
+      space registers, Port Logic registers, DMA and iATU (internal Address
+      Translation Unit) registers.
+
+  num-ib-windows:
+    description: number of inbound address translation windows
+    maxItems: 1
+    deprecated: true
+
+  num-ob-windows:
+    description: number of outbound address translation windows
+    maxItems: 1
+    deprecated: true
+
+  max-functions:
+    $ref: /schemas/types.yaml#/definitions/uint32
+    description: maximum number of functions that can be configured
+
+required:
+  - reg
+  - reg-names
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    bus {
+      #address-cells = <1>;
+      #size-cells = <1>;
+      pcie-ep@dfd00000 {
+        compatible = "snps,dw-pcie-ep";
+        reg = <0xdfc00000 0x0001000>, /* IP registers 1 */
+              <0xdfc01000 0x0001000>, /* IP registers 2 */
+              <0xd0000000 0x2000000>; /* Configuration space */
+        reg-names = "dbi", "dbi2", "addr_space";
+      };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index c88f6cb37e47..5818733eace7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14307,6 +14307,7 @@  L:	linux-pci@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/bindings/pci/designware-pcie.txt
 F:	Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml
+F:	Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml
 F:	drivers/pci/controller/dwc/*designware*
 
 PCI DRIVER FOR TI DRA7XX/J721E