diff mbox series

[v5,2/2] wilc1000: Document enable-gpios and reset-gpios properties

Message ID 20211215030501.3779911-3-davidm@egauge.net (mailing list archive)
State Changes Requested
Delegated to: Kalle Valo
Headers show
Series wilc1000: Add reset/enable GPIO support to SPI driver | expand

Commit Message

David Mosberger-Tang Dec. 15, 2021, 3:05 a.m. UTC 
Add documentation for the ENABLE and RESET GPIOs that may be needed by
wilc1000-spi.

Signed-off-by: David Mosberger-Tang <davidm@egauge.net>
---
 .../net/wireless/microchip,wilc1000.yaml      | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

Comments

Rob Herring (Arm) Dec. 16, 2021, 7 p.m. UTC | #1 
On Wed, 15 Dec 2021 03:05:12 +0000, David Mosberger-Tang wrote:
> Add documentation for the ENABLE and RESET GPIOs that may be needed by
> wilc1000-spi.
> 
> Signed-off-by: David Mosberger-Tang <davidm@egauge.net>
> ---
>  .../net/wireless/microchip,wilc1000.yaml      | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 

Reviewed-by: Rob Herring <robh@kernel.org>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml b/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml
index 6c35682377e6..60de78f1bc7b 100644
--- a/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml
+++ b/Documentation/devicetree/bindings/net/wireless/microchip,wilc1000.yaml
@@ -32,6 +32,21 @@  properties:
   clock-names:
     const: rtc
 
+  enable-gpios:
+    maxItems: 1
+    description: Used by wilc1000-spi to determine the GPIO line
+      connected to the ENABLE line.  If specified, reset-gpios
+      must be specified as well as otherwise the driver cannot
+      ensure the timing required between asserting ENABLE
+      and deasserting RESET.  This should be declared as an
+      active-high signal.
+
+  reset-gpios:
+    maxItems: 1
+    description: Used by wilc1000-spi to determine the GPIO line
+      connected to the RESET line.  This should be declared as an
+      active-low signal.
+
 required:
   - compatible
   - interrupts
@@ -40,6 +55,8 @@  additionalProperties: false
 
 examples:
   - |
+    #include <dt-bindings/gpio/gpio.h>
+
     spi {
       #address-cells = <1>;
       #size-cells = <0>;
@@ -51,6 +68,8 @@  examples:
         interrupts = <27 0>;
         clocks = <&pck1>;
         clock-names = "rtc";
+        enable-gpios = <&pioA 5 GPIO_ACTIVE_HIGH>;
+        reset-gpios = <&pioA 6 GPIO_ACTIVE_LOW>;
       };
     };