From d2ff98b7926e0956c0b92f7d5066cd8a65e7dfef Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 29 Nov 2023 13:06:14 +0200
Subject: [PATCH] dt-bindings: input: gpio-keys: Allow optional dedicated
wakeirq
Allow configuring an optional dedicated wakeirq for gpio-keys that
some SoCs have.
Let's use the common interrupt naming "irq" and "wakeup" that we already
have in use for some drivers and subsystems like i2c framework.
Note that the gpio-keys interrupt property is optional. If only a gpio
property is specified, the driver tries to translate the gpio into an
interrupt.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Link: https://lore.kernel.org/r/20231129110618.27551-1-tony@atomide.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
.../devicetree/bindings/input/gpio-keys.yaml | 41 ++++++++++++++++++-
1 file changed, 40 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/input/gpio-keys.yaml b/Documentation/devicetree/bindings/input/gpio-keys.yaml
index 159cd9d9fe573..cc78c21529213 100644
--- a/Documentation/devicetree/bindings/input/gpio-keys.yaml
+++ b/Documentation/devicetree/bindings/input/gpio-keys.yaml
@@ -31,7 +31,23 @@ patternProperties:
maxItems: 1
interrupts:
- maxItems: 1
+ oneOf:
+ - items:
+ - description: Optional key interrupt or wakeup interrupt
+ - items:
+ - description: Key interrupt
+ - description: Wakeup interrupt
+
+ interrupt-names:
+ description:
+ Optional interrupt names, can be used to specify a separate dedicated
+ wake-up interrupt in addition to the gpio irq
+ oneOf:
+ - items:
+ - enum: [ irq, wakeup ]
+ - items:
+ - const: irq
+ - const: wakeup
label:
description: Descriptive name of the key.
@@ -97,6 +113,20 @@ patternProperties:
- required:
- gpios
+ allOf:
+ - if:
+ properties:
+ interrupts:
+ minItems: 2
+ required:
+ - interrupts
+ then:
+ properties:
+ interrupt-names:
+ minItems: 2
+ required:
+ - interrupt-names
+
dependencies:
wakeup-event-action: [ wakeup-source ]
linux,input-value: [ gpios ]
@@ -137,6 +167,15 @@ examples:
linux,code = <108>;
interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
};
+
+ key-wakeup {
+ label = "GPIO Key WAKEUP";
+ linux,code = <143>;
+ interrupts-extended = <&intc 2 IRQ_TYPE_EDGE_FALLING>,
+ <&intc_wakeup 0 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "irq", "wakeup";
+ wakeup-source;
+ };
};
...
--
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