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Message-Id: <20240417135111.20375-1-pratik.farkase@wsisweden.com>
Date: Wed, 17 Apr 2024 15:51:10 +0200
From: Pratik Farkase <pratikfarkase94@...il.com>
To:
Cc: Pratik Farkase <pratik.farkase@...sweden.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Florian Fainelli <florian.fainelli@...adcom.com>,
Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
Ray Jui <rjui@...adcom.com>,
Scott Branden <sbranden@...adcom.com>,
Pratik Farkase <pratikfarkase94@...il.com>,
Stefan Wahren <wahrenst@....net>,
linux-kernel@...r.kernel.org,
linux-serial@...r.kernel.org,
devicetree@...r.kernel.org,
linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2] dt-bindings: serial: brcm,bcm2835-aux-uart: convert to dtschema
Convert the Broadcom BCM2835 Auxiliary UART to newer DT schema.
Created DT schema based on the .txt file which had
`compatible`, `reg` `clocks` and `interrupts` as the
required properties. This binding is used by Broadcom BCM2835
SOC used in some Raspberry PI boards.
Changes from original file:
Implemented complete example which the original txt binding lacked.
Signed-off-by: Pratik Farkase <pratik.farkase@...sweden.com>
---
Changes in v2
- Updated Maintainers list according to feedback
- Fixed typo `Auxiliar` to `Auxiliary`
---
---
.../bindings/serial/brcm,bcm2835-aux-uart.txt | 18 -------
.../serial/brcm,bcm2835-aux-uart.yaml | 48 +++++++++++++++++++
2 files changed, 48 insertions(+), 18 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/serial/brcm,bcm2835-aux-uart.txt
create mode 100644 Documentation/devicetree/bindings/serial/brcm,bcm2835-aux-uart.yaml
diff --git a/Documentation/devicetree/bindings/serial/brcm,bcm2835-aux-uart.txt b/Documentation/devicetree/bindings/serial/brcm,bcm2835-aux-uart.txt
deleted file mode 100644
index b5cc6297cd1b..000000000000
--- a/Documentation/devicetree/bindings/serial/brcm,bcm2835-aux-uart.txt
+++ /dev/null
@@ -1,18 +0,0 @@
-* BCM2835 AUXILIAR UART
-
-Required properties:
-
-- compatible: "brcm,bcm2835-aux-uart"
-- reg: The base address of the UART register bank.
-- interrupts: A single interrupt specifier.
-- clocks: Clock driving the hardware; used to figure out the baud rate
- divisor.
-
-Example:
-
- uart1: serial@...15040 {
- compatible = "brcm,bcm2835-aux-uart";
- reg = <0x7e215040 0x40>;
- interrupts = <1 29>;
- clocks = <&aux BCM2835_AUX_CLOCK_UART>;
- };
diff --git a/Documentation/devicetree/bindings/serial/brcm,bcm2835-aux-uart.yaml b/Documentation/devicetree/bindings/serial/brcm,bcm2835-aux-uart.yaml
new file mode 100644
index 000000000000..5d4d37371d6b
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/brcm,bcm2835-aux-uart.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/brcm,bcm2835-aux-uart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: BCM2835 AUXILIARY UART
+
+maintainers:
+ - Pratik Farkase <pratikfarkase94@...il.com>
+ - Florian Fainelli <florian.fainelli@...adcom.com>
+ - Stefan Wahren <wahrenst@....net>
+
+allOf:
+ - $ref: serial.yaml
+
+properties:
+ compatible:
+ const: brcm,bcm2835-aux-uart
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/bcm2835.h>
+ #include <dt-bindings/clock/bcm2835-aux.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ uart1: serial@...15040 {
+ compatible = "brcm,bcm2835-aux-uart";
+ reg = <0x7e215040 0x40>;
+ interrupts = <1 29>;
+ clocks = <&aux BCM2835_AUX_CLOCK_UART>;
+ };
--
2.34.1
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