diff mbox series

[v2,22/52] dt-bindings: gpio: Convert X-Powers AXP209 GPIO binding to a schema

Message ID 20210901091852.479202-23-maxime@cerno.tech
State Accepted
Commit 8616f7ee2cf6021361814a5842eb1ac9845bea21
Headers show
Series ARM: dts: Last round of DT schema fixes | expand

Commit Message

Maxime Ripard Sept. 1, 2021, 9:18 a.m. UTC 
The X-Powers AXP PMICs feature a GPIO Controller supported by Linux
thanks to its device tree binding.

Now that we have the DT validation in place, let's convert the device
tree bindings for that driver over to a YAML schema.

Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

---

Changes from v1:
  - Removed the example and moved it in the mfd schema
---
 .../devicetree/bindings/gpio/gpio-axp209.txt  | 75 -------------------
 .../bindings/gpio/x-powers,axp209-gpio.yaml   | 55 ++++++++++++++
 2 files changed, 55 insertions(+), 75 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-axp209.txt
 create mode 100644 Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml

Comments

Rob Herring (Arm) Sept. 3, 2021, 7:32 p.m. UTC | #1 
On Wed, 01 Sep 2021 11:18:22 +0200, Maxime Ripard wrote:
> The X-Powers AXP PMICs feature a GPIO Controller supported by Linux
> thanks to its device tree binding.
> 
> Now that we have the DT validation in place, let's convert the device
> tree bindings for that driver over to a YAML schema.
> 
> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com>
> Cc: Chen-Yu Tsai <wens@csie.org>
> Cc: Linus Walleij <linus.walleij@linaro.org>
> Cc: linux-gpio@vger.kernel.org
> Signed-off-by: Maxime Ripard <maxime@cerno.tech>
> 
> ---
> 
> Changes from v1:
>   - Removed the example and moved it in the mfd schema
> ---
>  .../devicetree/bindings/gpio/gpio-axp209.txt  | 75 -------------------
>  .../bindings/gpio/x-powers,axp209-gpio.yaml   | 55 ++++++++++++++
>  2 files changed, 55 insertions(+), 75 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/gpio/gpio-axp209.txt
>  create mode 100644 Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>

This needs to be applied with the MFD schema.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/gpio/gpio-axp209.txt b/Documentation/devicetree/bindings/gpio/gpio-axp209.txt
deleted file mode 100644
index fc42b2caa06d..000000000000
--- a/Documentation/devicetree/bindings/gpio/gpio-axp209.txt
+++ /dev/null
@@ -1,75 +0,0 @@ 
-AXP209 GPIO & pinctrl controller
-
-This driver follows the usual GPIO bindings found in
-Documentation/devicetree/bindings/gpio/gpio.txt
-
-This driver follows the usual pinctrl bindings found in
-Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
-
-This driver employs the per-pin muxing pattern.
-
-Required properties:
-- compatible: Should be one of:
-	- "x-powers,axp209-gpio"
-	- "x-powers,axp813-gpio"
-- #gpio-cells: Should be two. The first cell is the pin number and the
-  second is the GPIO flags.
-- gpio-controller: Marks the device node as a GPIO controller.
-
-This node must be a subnode of the axp20x PMIC, documented in
-Documentation/devicetree/bindings/mfd/axp20x.txt
-
-Example:
-
-axp209: pmic@34 {
-	compatible = "x-powers,axp209";
-	reg = <0x34>;
-	interrupt-parent = <&nmi_intc>;
-	interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
-	interrupt-controller;
-	#interrupt-cells = <1>;
-
-	axp_gpio: gpio {
-		compatible = "x-powers,axp209-gpio";
-		gpio-controller;
-		#gpio-cells = <2>;
-	};
-};
-
-The GPIOs can be muxed to other functions and therefore, must be a subnode of
-axp_gpio.
-
-Example:
-
-&axp_gpio {
-	gpio0_adc: gpio0-adc {
-		pins = "GPIO0";
-		function = "adc";
-	};
-};
-
-&example_node {
-	pinctrl-names = "default";
-	pinctrl-0 = <&gpio0_adc>;
-};
-
-GPIOs and their functions
--------------------------
-
-Each GPIO is independent from the other (i.e. GPIO0 in gpio_in function does
-not force GPIO1 and GPIO2 to be in gpio_in function as well).
-
-axp209
-------
-GPIO	|	Functions
-------------------------
-GPIO0	|	gpio_in, gpio_out, ldo, adc
-GPIO1	|	gpio_in, gpio_out, ldo, adc
-GPIO2	|	gpio_in, gpio_out
-
-axp813
-------
-GPIO	|	Functions
-------------------------
-GPIO0	|	gpio_in, gpio_out, ldo, adc
-GPIO1	|	gpio_in, gpio_out, ldo
diff --git a/Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml b/Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml
new file mode 100644
index 000000000000..0f628b088cec
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/x-powers,axp209-gpio.yaml
@@ -0,0 +1,55 @@ 
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/gpio/x-powers,axp209-gpio.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: X-Powers AXP209 GPIO Device Tree Bindings
+
+maintainers:
+  - Chen-Yu Tsai <wens@csie.org>
+
+properties:
+  "#gpio-cells":
+    const: 2
+    description: >
+      The first cell is the pin number and the second is the GPIO flags.
+
+  compatible:
+    oneOf:
+      - enum:
+          - x-powers,axp209-gpio
+          - x-powers,axp813-gpio
+      - items:
+          - const: x-powers,axp803-gpio
+          - const: x-powers,axp813-gpio
+
+  gpio-controller: true
+
+patternProperties:
+  "^.*-pins?$":
+    $ref: /schemas/pinctrl/pinmux-node.yaml#
+
+    properties:
+      pins:
+        items:
+          enum:
+            - GPIO0
+            - GPIO1
+            - GPIO2
+
+      function:
+        enum:
+          - adc
+          - ldo
+          - gpio_in
+          - gpio_out
+
+required:
+  - compatible
+  - "#gpio-cells"
+  - gpio-controller
+
+additionalProperties: false
+
+...