linux-kernel - [PATCH 26/28] dt-bindings: spi: Convert spi-pxa2xx to json-schema

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Date:   Tue, 17 Mar 2020 10:39:20 +0100
From:   Lubomir Rintel <lkundrak@...sk>
To:     Rob Herring <robh+dt@...nel.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Jason Cooper <jason@...edaemon.net>,
        Marc Zyngier <maz@...nel.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Kishon Vijay Abraham I <kishon@...com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mark Brown <broonie@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Daniel Mack <daniel@...que.org>,
        Haojian Zhuang <haojian.zhuang@...il.com>,
        Robert Jarzmik <robert.jarzmik@...e.fr>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-i2c@...r.kernel.org,
        linux-media@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-rtc@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-spi@...r.kernel.org, linux-usb@...r.kernel.org,
        Lubomir Rintel <lkundrak@...sk>
Subject: [PATCH 26/28] dt-bindings: spi: Convert spi-pxa2xx to json-schema

A straightforward conversion of the the spi-pxa2xx binding to DT schema
format using json-schema.

Signed-off-by: Lubomir Rintel <lkundrak@...sk>
---
 .../bindings/spi/marvell,mmp2-ssp.yaml        | 58 +++++++++++++++++++
 .../devicetree/bindings/spi/spi-pxa2xx.txt    | 27 ---------
 2 files changed, 58 insertions(+), 27 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml
 delete mode 100644 Documentation/devicetree/bindings/spi/spi-pxa2xx.txt

diff --git a/Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml b/Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml
new file mode 100644
index 0000000000000..de6b6a53b70d8
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/marvell,mmp2-ssp.yaml
@@ -0,0 +1,58 @@
+# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause)
+# Copyright 2019,2020 Lubomir Rintel <lkundrak@...sk>
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/marvell,mmp2-ssp.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: PXA2xx SSP SPI Controller bindings
+
+maintainers:
+  - Lubomir Rintel <lkundrak@...sk>
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+properties:
+  compatible:
+    const: marvell,mmp2-ssp
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  ready-gpios:
+    description: |
+      GPIO used to signal a SPI master that the FIFO is filled and we're
+      ready to service a transfer. Only useful in slave mode.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - '#address-cells'
+  - '#size-cells'
+
+dependencies:
+  ready-gpios: [ spi-slave ]
+
+examples:
+  - |
+    #include <dt-bindings/clock/marvell,mmp2.h>
+    spi@...35000 {
+        compatible = "marvell,mmp2-ssp";
+        #address-cells = <1>;
+        #size-cells = <0>;
+        reg = <0xd4035000 0x1000>;
+        clocks = <&soc_clocks MMP2_CLK_SSP0>;
+        interrupts = <0>;
+    };
+
+...
diff --git a/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt b/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt
deleted file mode 100644
index e30e0c2a4bce1..0000000000000
--- a/Documentation/devicetree/bindings/spi/spi-pxa2xx.txt
+++ /dev/null
@@ -1,27 +0,0 @@
-PXA2xx SSP SPI Controller
-
-Required properties:
-- compatible: Must be "marvell,mmp2-ssp".
-- reg: Offset and length of the device's register set.
-- interrupts: Should be the interrupt number.
-- clocks: Should contain a single entry describing the clock input.
-- #address-cells:  Number of cells required to define a chip select address.
-- #size-cells: Should be zero.
-
-Optional properties:
-- cs-gpios: list of GPIO chip selects. See the SPI bus bindings,
-  Documentation/devicetree/bindings/spi/spi-bus.txt
-- spi-slave: Empty property indicating the SPI controller is used in slave mode.
-- ready-gpios: GPIO used to signal a SPI master that the FIFO is filled
-  and we're ready to service a transfer. Only useful in slave mode.
-
-Child nodes represent devices on the SPI bus
-  See ../spi/spi-bus.txt
-
-Example:
-	ssp1: spi@...35000 {
-		compatible = "marvell,mmp2-ssp";
-		reg = <0xd4035000 0x1000>;
-		clocks = <&soc_clocks MMP2_CLK_SSP0>;
-		interrupts = <0>;
-	};
-- 
2.25.1