From: Neil Armstrong <narmstrong@baylibre.com>
To: robh+dt@kernel.org
Cc: linux-amlogic@lists.infradead.org, devicetree@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-serial@vger.kernel.org,
Neil Armstrong <narmstrong@baylibre.com>
Subject: [RFCv2 8/9] dt-bindings: serial: meson-uart: convert to yaml
Date: Mon, 5 Aug 2019 14:03:19 +0200 [thread overview]
Message-ID: <20190805120320.32282-9-narmstrong@baylibre.com> (raw)
In-Reply-To: <20190805120320.32282-1-narmstrong@baylibre.com>
Now that we have the DT validation in place, let's convert the device tree
bindings for the Amlogic UART Serial controller over to a YAML schemas.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
---
.../bindings/serial/amlogic,meson-uart.txt | 38 ----------
.../bindings/serial/amlogic,meson-uart.yaml | 73 +++++++++++++++++++
2 files changed, 73 insertions(+), 38 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt
create mode 100644 Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt
deleted file mode 100644
index c06c045126fc..000000000000
--- a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.txt
+++ /dev/null
@@ -1,38 +0,0 @@
-Amlogic Meson SoC UART Serial Interface
-=======================================
-
-The Amlogic Meson SoC UART Serial Interface is present on a large range
-of SoCs, and can be present either in the "Always-On" power domain or the
-"Everything-Else" power domain.
-
-The particularity of the "Always-On" Serial Interface is that the hardware
-is active since power-on and does not need any clock gating and is usable
-as very early serial console.
-
-Required properties:
-- compatible : compatible: value should be different for each SoC family as :
- - Meson6 : "amlogic,meson6-uart"
- - Meson8 : "amlogic,meson8-uart"
- - Meson8b : "amlogic,meson8b-uart"
- - GX (GXBB, GXL, GXM) : "amlogic,meson-gx-uart"
- eventually followed by : "amlogic,meson-ao-uart" if this UART interface
- is in the "Always-On" power domain.
-- reg : offset and length of the register set for the device.
-- interrupts : identifier to the device interrupt
-- clocks : a list of phandle + clock-specifier pairs, one for each
- entry in clock names.
-- clock-names :
- * "xtal" for external xtal clock identifier
- * "pclk" for the bus core clock, either the clk81 clock or the gate clock
- * "baud" for the source of the baudrate generator, can be either the xtal
- or the pclk.
-
-e.g.
-uart_A: serial@84c0 {
- compatible = "amlogic,meson-gx-uart";
- reg = <0x0 0x84c0 0x0 0x14>;
- interrupts = <GIC_SPI 26 IRQ_TYPE_EDGE_RISING>;
- /* Use xtal as baud rate clock source */
- clocks = <&xtal>, <&clkc CLKID_UART0>, <&xtal>;
- clock-names = "xtal", "pclk", "baud";
-};
diff --git a/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
new file mode 100644
index 000000000000..5d48a8c04aa9
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/amlogic,meson-uart.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 BayLibre, SAS
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/serial/amlogic,meson-uart.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic Meson SoC UART Serial Interface
+
+maintainers:
+ - Neil Armstrong <narmstrong@baylibre.com>
+
+description: |
+ The Amlogic Meson SoC UART Serial Interface is present on a large range
+ of SoCs, and can be present either in the "Always-On" power domain or the
+ "Everything-Else" power domain.
+
+ The particularity of the "Always-On" Serial Interface is that the hardware
+ is active since power-on and does not need any clock gating and is usable
+ as very early serial console.
+
+properties:
+ compatible:
+ oneOf:
+ - description: Allways-on power domain UART controller
+ items:
+ - enum:
+ - amlogic,meson6-uart
+ - amlogic,meson8-uart
+ - amlogic,meson8b-uart
+ - amlogic,meson-gx-uart
+ - const: amlogic,meson-ao-uart
+ - description: Everything-Else power domain UART controller
+ enum:
+ - amlogic,meson6-uart
+ - amlogic,meson8-uart
+ - amlogic,meson8b-uart
+ - amlogic,meson-gx-uart
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: external xtal clock identifier
+ - description: the bus core clock, either the clk81 clock or the gate clock
+ - description: the source of the baudrate generator, can be either the xtal or the pclk
+
+ clock-names:
+ items:
+ - const: xtal
+ - const: pclk
+ - const: baud
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ serial@84c0 {
+ compatible = "amlogic,meson-gx-uart";
+ reg = <0x84c0 0x14>;
+ interrupts = <26>;
+ clocks = <&xtal>, <&pclk>, <&xtal>;
+ clock-names = "xtal", "pclk", "baud";
+ };
--
2.22.0
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next prev parent reply other threads:[~2019-08-05 12:06 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-05 12:03 [RFCv2 0/9] dt-bindings: first tentative of conversion to yaml format Neil Armstrong
2019-08-05 12:03 ` [RFCv2 1/9] dt-bindings: mailbox: meson-mhu: convert to yaml Neil Armstrong
2019-08-07 14:34 ` Maxime Ripard
2019-08-05 12:03 ` [RFCv2 2/9] dt-bindings: rng: amlogic,meson-rng: " Neil Armstrong
2019-08-06 19:19 ` Martin Blumenstingl
2019-08-05 12:03 ` [RFCv2 3/9] dt-bindings: spi: meson: " Neil Armstrong
2019-08-05 21:45 ` Rob Herring
2019-08-05 12:03 ` [RFCv2 4/9] dt-bindings: reset: amlogic,meson-reset: " Neil Armstrong
2019-08-06 7:41 ` Philipp Zabel
2019-08-06 19:12 ` [RFCv2 4/9] dt-bindings: reset: amlogic, meson-reset: " Martin Blumenstingl
2019-08-05 12:03 ` [RFCv2 5/9] dt-bindings: arm: amlogic: amlogic, meson-gx-ao-secure: " Neil Armstrong
2019-08-05 12:03 ` [RFCv2 6/9] dt-bindings: phy: meson-g12a-usb2-phy: " Neil Armstrong
2019-08-06 19:21 ` Martin Blumenstingl
2019-08-05 12:03 ` [RFCv2 7/9] dt-bindings: phy: meson-g12a-usb3-pcie-phy: " Neil Armstrong
2019-08-05 12:03 ` Neil Armstrong [this message]
2019-08-06 19:18 ` [RFCv2 8/9] dt-bindings: serial: meson-uart: " Martin Blumenstingl
2019-08-05 12:03 ` [RFCv2 9/9] dt-bindings: watchdog: meson-gxbb-wdt: " Neil Armstrong
2019-08-07 17:59 ` Guenter Roeck
2019-08-05 21:51 ` [RFCv2 0/9] dt-bindings: first tentative of conversion to yaml format Rob Herring
2019-08-06 7:42 ` Neil Armstrong
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