In some designs, the chip reset pin is connected to a gpio, this
gpio needs to be set correctly before probing the driver, so adding
a reset-gpios in the device tree.
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx>
Signed-off-by: Hui Wang <hui.wang@xxxxxxxxxxxxx>
---
In the v2:
- include the gpio.h
- run the 'make dt_binding_check' and 'make dtbs_check'
Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
index 5dec15b7e7c3..88871480018e 100644
--- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
+++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.yaml
@@ -28,6 +28,9 @@ properties:
clocks:
maxItems: 1
+ reset-gpios:
+ maxItems: 1
+
clock-frequency:
description:
When there is no clock provider visible to the platform, this
@@ -91,6 +94,7 @@ unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
+ #include <dt-bindings/gpio/gpio.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
@@ -120,6 +124,7 @@ examples:
compatible = "nxp,sc16is752";
reg = <0x54>;
clocks = <&clk20m>;
+ reset-gpios = <&gpio5 13 GPIO_ACTIVE_LOW>;
interrupt-parent = <&gpio3>;
interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
--
2.34.1
