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

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20211011073934.34340-4-krzysztof.kozlowski@canonical.com>
Date:   Mon, 11 Oct 2021 09:39:29 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Charles Gorand <charles.gorand@...innov.com>,
        Mark Greer <mgreer@...malcreek.com>, linux-nfc@...ts.01.org,
        netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: [PATCH v2 3/8] dt-bindings: nfc: nxp,pn532: convert to dtschema

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@...onical.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@...onical.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@...42000 {
+        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@...42000 {
-        compatible = "ti,omap3-uart";
-
-        pn532: nfc {
-                compatible = "nxp,pn532";
-        };
-};
-- 
2.30.2