linux-kernel - [PATCH 2/2] dt-bindings: gpio: fairchild,74hc595: add strobe-gpios property

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Date:   Thu, 21 Jul 2022 11:34:22 +0200
From:   Marcus Folkesson <marcus.folkesson@...il.com>
To:     Linus Walleij <linus.walleij@...aro.org>,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maxime Ripard <mripard@...nel.org>
Cc:     linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Marcus Folkesson <marcus.folkesson@...il.com>
Subject: [PATCH 2/2] dt-bindings: gpio: fairchild,74hc595: add strobe-gpios property

Some shift registers (74hc4094 for example) has a strobe signal to latch
data from the serial input to the parallel output.

Add an optional strobe-gpios property to support those chips.

Signed-off-by: Marcus Folkesson <marcus.folkesson@...il.com>
---
 .../devicetree/bindings/gpio/fairchild,74hc595.yaml         | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
index a99e7842ca17..9893df9ae22c 100644
--- a/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
+++ b/Documentation/devicetree/bindings/gpio/fairchild,74hc595.yaml
@@ -14,6 +14,8 @@ properties:
     enum:
       - fairchild,74hc595
       - nxp,74lvc594
+      - ti,cd54hc4094
+      - ti,cd74hc4094
 
   reg:
     maxItems: 1
@@ -33,6 +35,10 @@ properties:
     description: GPIO connected to the OE (Output Enable) pin.
     maxItems: 1
 
+  strobe-gpios:
+    description: GPIO connected to the STROBE pin
+    maxItems: 1
+
   spi-max-frequency: true
 
 patternProperties:
-- 
2.36.1