lkml.org 
[lkml]   [2022]   [Jun]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 1/4] dt-bindings: usb: typec: add bindings for stm32g0 controller
Date
This patch adds DT schema documentation for the STM32G0 Type-C controller.
STM32G0 provides an integrated USB Type-C and power delivery interface.
It can be programmed with a firmware to handle UCSI protocol over I2C
interface. A GPIO is used as an interrupt line.
It may be used as a wakeup source, so use optional "wakeup-source" and
"power-domains" properties to support wakeup.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@foss.st.com>
---
.../bindings/usb/st,typec-stm32g0.yaml | 83 +++++++++++++++++++
1 file changed, 83 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml

diff --git a/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml b/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml
new file mode 100644
index 0000000000000..b2729bd015a1a
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/st,typec-stm32g0.yaml
@@ -0,0 +1,83 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/st,typec-stm32g0.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: STMicroelectronics STM32G0 Type-C controller bindings
+
+description: |
+ The STM32G0 MCU can be programmed to control Type-C connector(s) through I2C
+ typically using the UCSI protocol over I2C, with a dedicated alert
+ (interrupt) pin.
+
+maintainers:
+ - Fabrice Gasnier <fabrice.gasnier@foss.st.com>
+
+properties:
+ compatible:
+ const: st,stm32g0-typec
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ connector:
+ type: object
+ allOf:
+ - $ref: ../connector/usb-connector.yaml#
+
+ firmware-name:
+ description: |
+ Should contain the name of the default firmware image
+ file located on the firmware search path
+
+ wakeup-source: true
+ power-domains: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/irq.h>
+ i2c5 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ stm32g0@53 {
+ compatible = "st,stm32g0-typec";
+ reg = <0x53>;
+ /* Alert pin on GPIO PE12 */
+ interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-parent = <&gpioe>;
+
+ /* Example with one type-C connector */
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+
+ port {
+ con_usb_c_ep: endpoint {
+ remote-endpoint = <&usbotg_hs_ep>;
+ };
+ };
+ };
+ };
+ };
+
+ usbotg_hs {
+ usb-role-switch;
+ port {
+ usbotg_hs_ep: endpoint {
+ remote-endpoint = <&con_usb_c_ep>;
+ };
+ };
+ };
+...
--
2.25.1
\
 
 \ /
  Last update: 2022-06-24 17:57    [W:0.122 / U:1.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site