* [PATCH v1] dt-bindings: gpio: pca95xx: add Toradex Embedded Controller
@ 2025-03-28 12:29 Francesco Dolcini
2025-03-31 7:03 ` Francesco Dolcini
0 siblings, 1 reply; 2+ messages in thread
From: Francesco Dolcini @ 2025-03-28 12:29 UTC (permalink / raw)
To: Linus Walleij, Bartosz Golaszewski, Rob Herring,
Krzysztof Kozlowski, Conor Dooley
Cc: Emanuele Ghidoli, Krzysztof Kozlowski, linux-gpio, devicetree,
linux-kernel, Francesco Dolcini
From: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
The Toradex Embedded Controller IO16 is a 16-bit I2C I/O expander
implemented using a small MCU.
Its register interface and behavior are compatible with the PCAL6416.
Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
---
Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
index 7b1eb08fa055..db1520ff38bd 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
+++ b/Documentation/devicetree/bindings/gpio/gpio-pca95xx.yaml
@@ -16,6 +16,9 @@ description: |+
properties:
compatible:
oneOf:
+ - items:
+ - const: toradex,embedded-controller-io16
+ - const: nxp,pcal6416
- items:
- const: diodes,pi4ioe5v6534q
- const: nxp,pcal6534
@@ -132,6 +135,7 @@ allOf:
- maxim,max7325
- maxim,max7326
- maxim,max7327
+ - toradex,embedded-controller-io16
then:
properties:
reset-gpios: false
--
2.39.5
^ permalink raw reply related [flat|nested] 2+ messages in thread* Re: [PATCH v1] dt-bindings: gpio: pca95xx: add Toradex Embedded Controller
2025-03-28 12:29 [PATCH v1] dt-bindings: gpio: pca95xx: add Toradex Embedded Controller Francesco Dolcini
@ 2025-03-31 7:03 ` Francesco Dolcini
0 siblings, 0 replies; 2+ messages in thread
From: Francesco Dolcini @ 2025-03-31 7:03 UTC (permalink / raw)
To: Linus Walleij, Bartosz Golaszewski, Rob Herring,
Krzysztof Kozlowski, Conor Dooley
Cc: Emanuele Ghidoli, linux-gpio, devicetree, linux-kernel,
Francesco Dolcini
Hello,
On Fri, Mar 28, 2025 at 01:29:17PM +0100, Francesco Dolcini wrote:
> From: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
>
> The Toradex Embedded Controller IO16 is a 16-bit I2C I/O expander
> implemented using a small MCU.
> Its register interface and behavior are compatible with the PCAL6416.
>
> Signed-off-by: Emanuele Ghidoli <emanuele.ghidoli@toradex.com>
> Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Please ignore this patch, I'll send soon a v2.
The issue with this patch is that the compatible is too long, we are
going to re-use "embedded-controller" prefix for other devices and this
creates clashes with the i2c compatible match fallback function
(i2c_of_match_device_sysfs).
Francesco
^ permalink raw reply [flat|nested] 2+ messages in thread
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