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Message-Id: <20240227004414.841391-1-andrew@codeconstruct.com.au>
Date: Tue, 27 Feb 2024 11:14:14 +1030
From: Andrew Jeffery <andrew@...econstruct.com.au>
To: linus.walleij@...aro.org,
brgl@...ev.pl,
krzysztof.kozlowski+dt@...aro.org
Cc: Andrew Jeffery <andrew@...econstruct.com.au>,
robh+dt@...nel.org,
conor+dt@...nel.org,
joel@....id.au,
linux-gpio@...r.kernel.org,
devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-aspeed@...ts.ozlabs.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v4] dt-bindings: gpio: aspeed,ast2400-gpio: Convert to DT schema
Squash warnings such as:
```
arch/arm/boot/dts/aspeed/aspeed-bmc-facebook-galaxy100.dtb: /ahb/apb@...00000/gpio@...80000: failed to match any schema with compatible: ['aspeed,ast2400-gpio']
```
Signed-off-by: Andrew Jeffery <andrew@...econstruct.com.au>
---
v4: Add constraints for gpio-line-names, ngpios as requested by Krzysztof:
https://lore.kernel.org/all/458becdb-fb1e-4808-87b6-3037ec945647@linaro.org/
Add more examples to exercise constraints.
v3: https://lore.kernel.org/all/20240226051645.414935-1-andrew@codeconstruct.com.au/
Base on v6.8-rc6, fix yamllint warning
Rob's bot picked the missing `#interrupt-cells` in the example on v2[1]. The
patch was based on v6.8-rc1, and going back over my shell history I missed
the following output from `make dt_binding_check`:
```
...
LINT Documentation/devicetree/bindings
usage: yamllint [-h] [-] [-c CONFIG_FILE | -d CONFIG_DATA] [--list-files] [-f {parsable,standard,colored,github,auto}] [-s] [--no-warnings] [-v] [FILE_OR_DIR ...]
yamllint: error: one of the arguments FILE_OR_DIR - is required
...
```
I've rebased on v6.8-rc6 and no-longer see the issue with the invocation
of `yamllint`.
[1]: https://lore.kernel.org/all/170892197611.2260479.15343562563553959436.robh@kernel.org/
v2: https://lore.kernel.org/all/20240226031951.284847-1-andrew@codeconstruct.com.au/
Address feedback from Krzysztof:
https://lore.kernel.org/all/0d1dd262-b6dd-4d71-9239-8b0aec8cceff@linaro.org/
v1: https://lore.kernel.org/all/20240220052918.742793-1-andrew@codeconstruct.com.au/
.../bindings/gpio/aspeed,ast2400-gpio.yaml | 149 ++++++++++++++++++
.../devicetree/bindings/gpio/gpio-aspeed.txt | 39 -----
2 files changed, 149 insertions(+), 39 deletions(-)
create mode 100644 Documentation/devicetree/bindings/gpio/aspeed,ast2400-gpio.yaml
delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
diff --git a/Documentation/devicetree/bindings/gpio/aspeed,ast2400-gpio.yaml b/Documentation/devicetree/bindings/gpio/aspeed,ast2400-gpio.yaml
new file mode 100644
index 000000000000..25f938b442e1
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/aspeed,ast2400-gpio.yaml
@@ -0,0 +1,149 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpio/aspeed,ast2400-gpio.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Aspeed GPIO controller
+
+maintainers:
+ - Andrew Jeffery <andrew@...econstruct.com.au>
+
+properties:
+ compatible:
+ enum:
+ - aspeed,ast2400-gpio
+ - aspeed,ast2500-gpio
+ - aspeed,ast2600-gpio
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+ description: The clock to use for debounce timings
+
+ gpio-controller: true
+ gpio-line-names: true
+ gpio-ranges: true
+
+ "#gpio-cells":
+ const: 2
+
+ interrupts:
+ maxItems: 1
+
+ interrupt-controller: true
+
+ "#interrupt-cells":
+ const: 2
+
+ ngpios: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - interrupt-controller
+ - "#interrupt-cells"
+ - gpio-controller
+ - "#gpio-cells"
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: aspeed,ast2400-gpio
+ then:
+ properties:
+ gpio-line-names:
+ minItems: 220
+ maxItems: 220
+ ngpios:
+ const: 220
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: aspeed,ast2500-gpio
+ then:
+ properties:
+ gpio-line-names:
+ minItems: 232
+ maxItems: 232
+ ngpios:
+ const: 232
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: aspeed,ast2600-gpio
+ then:
+ properties:
+ gpio-line-names:
+ minItems: 36
+ maxItems: 208
+ ngpios:
+ enum: [ 36, 208 ]
+ required:
+ - ngpios
+
+additionalProperties: false
+
+examples:
+ - |
+ gpio@...80000 {
+ compatible = "aspeed,ast2400-gpio";
+ reg = <0x1e780000 0x1000>;
+ interrupts = <20>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+ - |
+ #include <dt-bindings/clock/aspeed-clock.h>
+ gpio: gpio@...80000 {
+ compatible = "aspeed,ast2500-gpio";
+ reg = <0x1e780000 0x200>;
+ clocks = <&syscon ASPEED_CLK_APB>;
+ interrupts = <20>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 0 232>;
+ };
+ - |
+ #include <dt-bindings/clock/ast2600-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ gpio0: gpio@...80000 {
+ compatible = "aspeed,ast2600-gpio";
+ reg = <0x1e780000 0x400>;
+ clocks = <&syscon ASPEED_CLK_APB2>;
+ interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ #gpio-cells = <2>;
+ gpio-controller;
+ gpio-ranges = <&pinctrl 0 0 208>;
+ ngpios = <208>;
+ };
+ - |
+ #include <dt-bindings/clock/ast2600-clock.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+ gpio1: gpio@...80800 {
+ compatible = "aspeed,ast2600-gpio";
+ reg = <0x1e780800 0x800>;
+ clocks = <&syscon ASPEED_CLK_APB1>;
+ interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&pinctrl 0 208 36>;
+ ngpios = <36>;
+ };
diff --git a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt b/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
deleted file mode 100644
index b2033fc3a71a..000000000000
--- a/Documentation/devicetree/bindings/gpio/gpio-aspeed.txt
+++ /dev/null
@@ -1,39 +0,0 @@
-Aspeed GPIO controller Device Tree Bindings
--------------------------------------------
-
-Required properties:
-- compatible : Either "aspeed,ast2400-gpio", "aspeed,ast2500-gpio",
- or "aspeed,ast2600-gpio".
-
-- #gpio-cells : Should be two
- - First cell is the GPIO line number
- - Second cell is used to specify optional
- parameters (unused)
-
-- reg : Address and length of the register set for the device
-- gpio-controller : Marks the device node as a GPIO controller.
-- interrupts : Interrupt specifier (see interrupt bindings for
- details)
-- interrupt-controller : Mark the GPIO controller as an interrupt-controller
-
-Optional properties:
-
-- clocks : A phandle to the clock to use for debounce timings
-- ngpios : Number of GPIOs controlled by this controller. Should be set
- when there are multiple GPIO controllers on a SoC (ast2600).
-
-The gpio and interrupt properties are further described in their respective
-bindings documentation:
-
-- Documentation/devicetree/bindings/gpio/gpio.txt
-- Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
-
- Example:
- gpio@...80000 {
- #gpio-cells = <2>;
- compatible = "aspeed,ast2400-gpio";
- gpio-controller;
- interrupts = <20>;
- reg = <0x1e780000 0x1000>;
- interrupt-controller;
- };
base-commit: d206a76d7d2726f3b096037f2079ce0bd3ba329b
--
2.39.2
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