On 24/10/2022 08:41, Wayne Chang wrote:
add device-tree binding documentation for Cypress cypd4226 type-C
controller's I2C interface. It is a standard i2c slave with GPIO
input as IRQ interface.
Signed-off-by: Wayne Chang <waynec@xxxxxxxxxx>
---
.../bindings/usb/cypress,cypd4226.yaml | 86 +++++++++++++++++++
1 file changed, 86 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml
diff --git a/Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml b/Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml
new file mode 100644
index 000000000000..5ac28ab4e7a1
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/cypress,cypd4226.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/cypress,cypd4226.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Cypress cypd4226 UCSI I2C Type-C Controller
+
+maintainers:
+ - Wayne Chang <waynec@xxxxxxxxxx>
+
+description: |
+ The Cypress cypd4226 UCSI I2C type-C controller is a I2C interface type-C
+ controller.
+
+properties:
+ compatible:
+ const: cypress,cypd4226
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ reg:
+ const: 0x08
+
+ interrupts:
+ maxItems: 1
+
+ cypress,firmware-build:
+ enum:
+ - nv
+ - gn
+ description: |
+ the name of the CCGx firmware built for product series.
+ should be set one of following:
+ - "nv" for the RTX product series
Please add 'NVIDIA' so that it is 'for the NVIDIA RTX product series'
+ - "gn" for the Jetson product series
Same here please add 'NVIDIA' so that it is 'for the NVIDIA Jetson
product series'.
Rob, any concerns about this property in general? Unfortunately, ACPI
choose a 16-bit type for this and used 'nv' for the RTX product. I don't
find 'gn' for Jetson very descriptive but we need a way to differentiate
from RTX.
This is needed in the Cypress CCGX driver for the following ...
https://lore.kernel.org/lkml/20220928150840.3804313-1-waynec@xxxxxxxxxx/
Ideally, this should have been included in this series but was sent
before. We can always re-work/update the above patch even though it has
been queued up now.
Jon
--
nvpublic
