[PATCH v2 3/8] dt-bindings: nfc: nxp,pn532: convert to dtschema

Krzysztof Kozlowski
2021-10-11T07:40:02Z

Convert the NXP PN532 NFC controller to DT schema format.

Drop the "clock-frequency" property during conversion because it is a
property of I2C bus controller, not I2C slave device. It was also never
used by the driver.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
---
.../bindings/net/nfc/nxp,pn532.yaml | 65 +++++++++++++++++++
.../devicetree/bindings/net/nfc/pn532.txt | 46 -------------
2 files changed, 65 insertions(+), 46 deletions(-)
create mode 100644 Documentation/devicetree/bindings/net/nfc/nxp,pn532.yaml
delete mode 100644 Documentation/devicetree/bindings/net/nfc/pn532.txt

diff --git a/Documentation/devicetree/bindings/net/nfc/nxp,pn532.yaml b/Documentation/devicetree/bindings/net/nfc/nxp,pn532.yaml
new file mode 100644
index 000000000000..d8ba5a18db98
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/nfc/nxp,pn532.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/nfc/nxp,pn532.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP Semiconductors PN532 NFC controller
+
+maintainers:
+ - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
+
+properties:
+ compatible:
+ oneOf:
+ - const: nxp,pn532
+ - description: Deprecated bindings
+ enum:
+ - nxp,pn532-i2c
+ - nxp,pn533-i2c
+ deprecated: true
+
+ interrupts:
+ description: Required if connected via I2C
+ maxItems: 1
+
+ reg:
+ description: Required if connected via I2C
+ maxItems: 1
+
+required:
+ - compatible
+
+dependencies:
+ interrupts: [ 'reg' ]
+
+additionalProperties: false
+
+examples:
+ # PN532 on I2C bus
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ nfc@24 {
+ compatible = "nxp,pn532";
+
+ reg = <0x24>;
+
+ interrupt-parent = <&gpio1>;
+ interrupts = <17 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
+ # PN532 connected via UART
+ - |
+ serial@49042000 {
+ reg = <0x49042000 0x400>;
+
+ nfc {
+ compatible = "nxp,pn532";
+ };
+ };
diff --git a/Documentation/devicetree/bindings/net/nfc/pn532.txt b/Documentation/devicetree/bindings/net/nfc/pn532.txt
deleted file mode 100644
index a5507dc499bc..000000000000
--- a/Documentation/devicetree/bindings/net/nfc/pn532.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-* NXP Semiconductors PN532 NFC Controller
-
-Required properties:
-- compatible: Should be
- - "nxp,pn532" Place a node with this inside the devicetree node of the bus
- where the NFC chip is connected to.
- Currently the kernel has phy bindings for uart and i2c.
- - "nxp,pn532-i2c" (DEPRECATED) only works for the i2c binding.
- - "nxp,pn533-i2c" (DEPRECATED) only works for the i2c binding.
-
-Required properties if connected on i2c:
-- clock-frequency: I²C work frequency.
-- reg: for the I²C bus address. This is fixed at 0x24 for the PN532.
-- interrupts: GPIO interrupt to which the chip is connected
-
-Optional SoC Specific Properties:
-- pinctrl-names: Contains only one value - "default".
-- pintctrl-0: Specifies the pin control groups used for this controller.
-
-Example (for ARM-based BeagleBone with PN532 on I2C2):
-
-&i2c2 {
-
-
- pn532: nfc@24 {
-
- compatible = "nxp,pn532";
-
- reg = <0x24>;
- clock-frequency = <400000>;
-
- interrupt-parent = <&gpio1>;
- interrupts = <17 IRQ_TYPE_EDGE_FALLING>;
-
- };
-};
-
-Example (for PN532 connected via uart):
-
-uart4: serial@49042000 {
- compatible = "ti,omap3-uart";
-
- pn532: nfc {
- compatible = "nxp,pn532";
- };
-};
--
2.30.2