[PATCH v2] dt-bindings: pinctrl: convert semtech,sx150xq bindings to dt-schema
From: Neil Armstrong
Date: Thu Oct 13 2022 - 02:37:26 EST
This converts the Semtech SX150Xq bindings to dt-schemas, add necessary
bindings documentation to cover all differences between HW variants
and current bindings usage.
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
To: Rob Herring <robh+dt@xxxxxxxxxx>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
Cc: linux-gpio@xxxxxxxxxxxxxxx
Cc: devicetree@xxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
---
Changes in v2:
- fixed rob comments
- added rob's Reviewed-by
- Link to v1: https://lore.kernel.org/r/20221005-mdm9615-sx1509q-yaml-v1-0-0c26649b637c@xxxxxxxxxx
---
.../devicetree/bindings/pinctrl/pinctrl-sx150x.txt | 72 -------
.../bindings/pinctrl/semtech,sx1501q.yaml | 208 +++++++++++++++++++++
2 files changed, 208 insertions(+), 72 deletions(-)
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-sx150x.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-sx150x.txt
deleted file mode 100644
index 4023bad2fe39..000000000000
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-sx150x.txt
+++ /dev/null
@@ -1,72 +0,0 @@
-SEMTECH SX150x GPIO expander bindings
-
-Please refer to pinctrl-bindings.txt, ../gpio/gpio.txt, and
-../interrupt-controller/interrupts.txt for generic information regarding
-pin controller, GPIO, and interrupt bindings.
-
-Required properties:
-- compatible: should be one of :
- "semtech,sx1501q",
- "semtech,sx1502q",
- "semtech,sx1503q",
- "semtech,sx1504q",
- "semtech,sx1505q",
- "semtech,sx1506q",
- "semtech,sx1507q",
- "semtech,sx1508q",
- "semtech,sx1509q".
-
-- reg: The I2C slave address for this device.
-
-- #gpio-cells: Should be 2. The first cell is the GPIO number and the
- second cell is used to specify optional parameters:
- bit 0: polarity (0: normal, 1: inverted)
-
-- gpio-controller: Marks the device as a GPIO controller.
-
-Optional properties :
-- interrupts: Interrupt specifier for the controllers interrupt.
-
-- interrupt-controller: Marks the device as a interrupt controller.
-
-- semtech,probe-reset: Will trigger a reset of the GPIO expander on probe,
- only for sx1507q, sx1508q and sx1509q
-
-The GPIO expander can optionally be used as an interrupt controller, in
-which case it uses the default two cell specifier.
-
-Required properties for pin configuration sub-nodes:
- - pins: List of pins to which the configuration applies.
-
-Optional properties for pin configuration sub-nodes:
-----------------------------------------------------
- - bias-disable: disable any pin bias, except the OSCIO pin
- - bias-pull-up: pull up the pin, except the OSCIO pin
- - bias-pull-down: pull down the pin, except the OSCIO pin
- - bias-pull-pin-default: use pin-default pull state, except the OSCIO pin
- - drive-push-pull: drive actively high and low
- - drive-open-drain: drive with open drain only for sx1507q, sx1508q and sx1509q and except the OSCIO pin
- - output-low: set the pin to output mode with low level
- - output-high: set the pin to output mode with high level
-
-Example:
-
- i2c0gpio-expander@20{
- #gpio-cells = <2>;
- #interrupt-cells = <2>;
- compatible = "semtech,sx1506q";
- reg = <0x20>;
- interrupt-parent = <&gpio_1>;
- interrupts = <16 0>;
-
- gpio-controller;
- interrupt-controller;
-
- pinctrl-names = "default";
- pinctrl-0 = <&gpio1_cfg_pins>;
-
- gpio1_cfg_pins: gpio1-cfg {
- pins = "gpio1";
- bias-pull-up;
- };
- };
diff --git a/Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml b/Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml
new file mode 100644
index 000000000000..df429a396ba3
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/semtech,sx1501q.yaml
@@ -0,0 +1,208 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright 2022 Linaro Ltd.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/semtech,sx1501q.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Semtech SX150x GPIO expander
+
+maintainers:
+ - Neil Armstrong <neil.armstrong@xxxxxxxxxx>
+
+properties:
+ compatible:
+ enum:
+ - semtech,sx1501q
+ - semtech,sx1502q
+ - semtech,sx1503q
+ - semtech,sx1504q
+ - semtech,sx1505q
+ - semtech,sx1506q
+ - semtech,sx1507q
+ - semtech,sx1508q
+ - semtech,sx1509q
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ '#interrupt-cells':
+ const: 2
+
+ interrupt-controller: true
+
+ '#gpio-cells':
+ const: 2
+
+ gpio-controller: true
+
+ semtech,probe-reset:
+ description: Will trigger a reset of the GPIO expander on probe
+ type: boolean
+
+patternProperties:
+ '-cfg$':
+ type: object
+ properties:
+ pins: true
+
+ bias-disable: true
+ bias-pull-up: true
+ bias-pull-down: true
+ bias-pull-pin-default: true
+ drive-push-pull: true
+ output-low: true
+ output-high: true
+ drive-open-drain: true
+
+ required:
+ - pins
+
+ allOf:
+ - $ref: "pincfg-node.yaml#"
+ - $ref: "pinmux-node.yaml#"
+ - if:
+ properties:
+ pins:
+ contains:
+ const: oscio
+ then:
+ properties:
+ bias-disable: false
+ bias-pull-up: false
+ bias-pull-down: false
+ bias-pull-pin-default: false
+ drive-open-drain: false
+
+ additionalProperties: false
+
+required:
+ - compatible
+ - reg
+ - '#gpio-cells'
+ - gpio-controller
+
+allOf:
+ - $ref: "pinctrl.yaml#"
+ - if:
+ not:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - semtech,sx1507q
+ - semtech,sx1508q
+ - semtech,sx1509q
+ then:
+ properties:
+ semtech,probe-reset: false
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - semtech,sx1501q
+ - semtech,sx1504q
+ then:
+ patternProperties:
+ '-cfg$':
+ properties:
+ pins:
+ items:
+ pattern: '^gpio[0-3]$'
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - semtech,sx1502q
+ - semtech,sx1505q
+ then:
+ patternProperties:
+ '-cfg$':
+ properties:
+ pins:
+ items:
+ pattern: '^gpio[0-7]$'
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - semtech,sx1503q
+ - semtech,sx1506q
+ then:
+ patternProperties:
+ '-cfg$':
+ properties:
+ pins:
+ items:
+ pattern: '^gpio[0-15]$'
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: semtech,sx1507q
+ then:
+ patternProperties:
+ '-cfg$':
+ properties:
+ pins:
+ items:
+ pattern: '^(oscio|gpio[0-3])$'
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: semtech,sx1508q
+ then:
+ patternProperties:
+ '-cfg$':
+ properties:
+ pins:
+ items:
+ pattern: '^(oscio|gpio[0-7])$'
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: semtech,sx1509q
+ then:
+ patternProperties:
+ '-cfg$':
+ properties:
+ pins:
+ items:
+ pattern: '^(oscio|gpio[0-15])$'
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c@1000 {
+ reg = <0x1000 0x80>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pinctrl@20 {
+ compatible = "semtech,sx1501q";
+ reg = <0x20>;
+
+ #gpio-cells = <2>;
+ #interrupt-cells = <2>;
+
+ interrupts = <16 IRQ_TYPE_EDGE_FALLING>;
+
+ gpio-controller;
+ interrupt-controller;
+
+ gpio1-cfg {
+ pins = "gpio1";
+ bias-pull-up;
+ };
+ };
+ };
---
base-commit: 4fe89d07dcc2804c8b562f6c7896a45643d34b2f
change-id: 20221005-mdm9615-sx1509q-yaml-7cfabf896fff
Best regards,
--
Neil Armstrong <neil.armstrong@xxxxxxxxxx>