linux-kernel - [PATCH v2 11/13] dt-bindings: gpio: Add Pensando Elba SoC support

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Message-Id: <20210329015938.20316-12-brad@pensando.io>
Date:   Sun, 28 Mar 2021 18:59:36 -0700
From:   Brad Larson <brad@...sando.io>
To:     linux-arm-kernel@...ts.infradead.org
Cc:     arnd@...db.de, linus.walleij@...aro.org, bgolaszewski@...libre.com,
        broonie@...nel.org, fancer.lancer@...il.com,
        adrian.hunter@...el.com, ulf.hansson@...aro.org, olof@...om.net,
        brad@...sando.io, linux-gpio@...r.kernel.org,
        linux-spi@...r.kernel.org, linux-mmc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 11/13] dt-bindings: gpio: Add Pensando Elba SoC support

The Pensando Elba SoC gpio driver provides control
of four chip selects on two SPI busses.

Signed-off-by: Brad Larson <brad@...sando.io>
---
 .../bindings/gpio/pensando,elba-spics.yaml    | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/pensando,elba-spics.yaml

diff --git a/Documentation/devicetree/bindings/gpio/pensando,elba-spics.yaml b/Documentation/devicetree/bindings/gpio/pensando,elba-spics.yaml
new file mode 100644
index 000000000000..c93b481d4ad3
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/pensando,elba-spics.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/pensando,elba-spics.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Pensando Elba SPI Chip Select Driver
+
+description: |
+  The Pensando Elba SoC provides four SPI bus chip selects.
+
+maintainers:
+  - Brad Larson <brad@...sando.io>
+
+properties:
+  $nodename:
+    pattern: "^spics@[0-9a-f]+$"
+  
+  compatible:
+    const: pensando,elba-spics
+
+  reg:
+    maxItems: 1
+
+  gpio-controller: true
+
+  "#gpio-cells":
+    const: 2
+
+required:
+  - compatible
+  - reg
+  - gpio-controller
+  - "#gpio-cells"
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        spics: spics@...c2468 {
+            compatible = "pensando,elba-spics";
+            reg = <0x0 0x307c2468 0x0 0x4>;
+            gpio-controller;
+            #gpio-cells = <2>;
+        };
+    };
-- 
2.17.1