[2/4] dt-bindings: gpio: Add DW GPIO debounce clocks bindings

Message ID 20200306132512.46E03803079F@mail.baikalelectronics.ru
State New
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  • [1/4] dt-bindings: gpio: Replace DW APB GPIO legacy bindings with YAML-based one
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Commit Message

Serge Semin March 6, 2020, 1:24 p.m.
From: Serge Semin <Sergey.Semin@baikalelectronics.ru>

Port A of the DW GPIO controller may optionally have a debounce
logic enabled if it was synthesized with corresponding functionality
enabled. In this case a dedicated reference clocks should be provided
to the node with "db" clock-names.

Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
---
 Documentation/devicetree/bindings/gpio/snps,dw-apb-gpio.yaml | 4 ++++
 1 file changed, 4 insertions(+)

Patch

diff --git a/Documentation/devicetree/bindings/gpio/snps,dw-apb-gpio.yaml b/Documentation/devicetree/bindings/gpio/snps,dw-apb-gpio.yaml
index d9bc12e9e515..8b510802f5bc 100644
--- a/Documentation/devicetree/bindings/gpio/snps,dw-apb-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/snps,dw-apb-gpio.yaml
@@ -31,12 +31,16 @@  properties:
     maxItems: 1
 
   clocks:
+    minItems: 1
     items:
       - description: APB interface clock source
+      - description: DW GPIO debounce reference clock source
 
   clock-names:
+    minItems: 1
     items:
       - const: bus
+      - const: db
 
   resets:
     maxItems: 1