[5/7] dt-bindings: nfc: st,nci: convert to dtschema

Commit Message

Krzysztof Kozlowski Oct. 10, 2021, 2:23 p.m. UTC

Convert the ST NCI (ST21NFCB) NFC controller to DT schema format.

Signed-off-by: Krzysztof Kozlowski <[e-mail]>
---
 .../bindings/net/nfc/st,st-nci.yaml           | 114 ++++++++++++++++++
 .../bindings/net/nfc/st-nci-i2c.txt           |  38 ------
 .../bindings/net/nfc/st-nci-spi.txt           |  36 ------
 3 files changed, 114 insertions(+), 74 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml
 delete mode 100644 Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt
 delete mode 100644 Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt

Patch

diff --git a/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml b/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml
new file mode 100644
index 000000000000..4486ae75f8a2
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nfc/st,st-nci.yaml
@@ -0,0 +1,114 @@ 
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/nfc/st,st-nci.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: STMicroelectronics ST NCI NFC controller
+
+maintainers:
+  - Krzysztof Kozlowski <[e-mail]>
+
+properties:
+  compatible:
+    enum:
+      - st,st21nfcb-i2c
+      - st,st21nfcb-spi
+      - st,st21nfcc-i2c
+
+  clock-frequency: true
+
+  reset-gpios:
+    description: Output GPIO pin used for resetting the controller
+
+  ese-present:
+    type: boolean
+    description: |
+      Specifies that an ese is physically connected to the controller
+
+  interrupts:
+    maxItems: 1
+
+  reg:
+    maxItems: 1
+
+  spi-max-frequency: true
+
+  uicc-present:
+    type: boolean
+    description: |
+      Specifies that the uicc swp signal can be physically connected to the
+      controller
+
+required:
+  - compatible
+  - interrupts
+  - reg
+  - reset-gpios
+
+if:
+  properties:
+    compatible:
+      contains:
+        enum:
+          - st,st21nfcb-i2c
+          - st,st21nfcc-i2c
+then:
+  properties:
+    spi-max-frequency: false
+  required:
+    - clock-frequency
+else:
+  properties:
+    clock-frequency: false
+  required:
+    - spi-max-frequency
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        nfc@8 {
+            compatible = "st,st21nfcb-i2c";
+            reg = <0x08>;
+
+            clock-frequency = <400000>;
+
+            interrupt-parent = <&gpio5>;
+            interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
+            reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
+
+            ese-present;
+            uicc-present;
+        };
+    };
+
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    spi {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        nfc@0 {
+            compatible = "st,st21nfcb-spi";
+            reg = <0>;
+
+            spi-max-frequency = <4000000>;
+
+            interrupt-parent = <&gpio5>;
+            interrupts = <2 IRQ_TYPE_EDGE_RISING>;
+            reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
+
+            ese-present;
+            uicc-present;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt b/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt
deleted file mode 100644
index baa8f8133d19..000000000000
--- a/Documentation/devicetree/bindings/net/nfc/st-nci-i2c.txt
+++ /dev/null
@@ -1,38 +0,0 @@ 
-* STMicroelectronics SAS. ST NCI NFC Controller
-
-Required properties:
-- compatible: Should be "st,st21nfcb-i2c" or "st,st21nfcc-i2c".
-- clock-frequency: I²C work frequency.
-- reg: address on the bus
-- interrupts: GPIO interrupt to which the chip is connected
-- reset-gpios: Output GPIO pin used to reset the ST21NFCB
-
-Optional SoC Specific Properties:
-- pinctrl-names: Contains only one value - "default".
-- pintctrl-0: Specifies the pin control groups used for this controller.
-- ese-present: Specifies that an ese is physically connected to the nfc
-controller.
-- uicc-present: Specifies that the uicc swp signal can be physically
-connected to the nfc controller.
-
-Example (for ARM-based BeagleBoard xM with ST21NFCB on I2C2):
-
-&i2c2 {
-
-
-	st21nfcb: st21nfcb@8 {
-
-		compatible = "st,st21nfcb-i2c";
-
-		reg = <0x08>;
-		clock-frequency = <400000>;
-
-		interrupt-parent = <&gpio5>;
-		interrupts = <2 IRQ_TYPE_LEVEL_HIGH>;
-
-		reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
-
-		ese-present;
-		uicc-present;
-	};
-};
diff --git a/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt b/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt
deleted file mode 100644
index d33343330b94..000000000000
--- a/Documentation/devicetree/bindings/net/nfc/st-nci-spi.txt
+++ /dev/null
@@ -1,36 +0,0 @@ 
-* STMicroelectronics SAS. ST NCI NFC Controller
-
-Required properties:
-- compatible: Should be "st,st21nfcb-spi"
-- spi-max-frequency: Maximum SPI frequency (<= 4000000).
-- interrupts: GPIO interrupt to which the chip is connected
-- reset-gpios: Output GPIO pin used to reset the ST21NFCB
-
-Optional SoC Specific Properties:
-- pinctrl-names: Contains only one value - "default".
-- pintctrl-0: Specifies the pin control groups used for this controller.
-- ese-present: Specifies that an ese is physically connected to the nfc
-controller.
-- uicc-present: Specifies that the uicc swp signal can be physically
-connected to the nfc controller.
-
-Example (for ARM-based BeagleBoard xM with ST21NFCB on SPI4):
-
-&mcspi4 {
-
-
-	st21nfcb: st21nfcb@0 {
-
-		compatible = "st,st21nfcb-spi";
-
-		clock-frequency = <4000000>;
-
-		interrupt-parent = <&gpio5>;
-		interrupts = <2 IRQ_TYPE_EDGE_RISING>;
-
-		reset-gpios = <&gpio5 29 GPIO_ACTIVE_HIGH>;
-
-		ese-present;
-		uicc-present;
-	};
-};