[PATCH v5 1/2] dt-bindings: usb: add analogix,anx7688.yaml
Dafna Hirschfeld
dafna.hirschfeld at collabora.com
Fri Mar 5 12:43:50 UTC 2021
ANX7688 is a USB Type-C port controller with a MUX. It converts HDMI 2.0 to
DisplayPort 1.3 Ultra-HDi (4096x2160p60).
The integrated crosspoint switch (the MUX) supports USB 3.1 data transfer
along with the DisplayPort Alternate Mode signaling over USB Type-C.
Additionally, an on-chip microcontroller (OCM) is available to manage the
signal switching, Channel Configuration (CC) detection, USB Power
Delivery (USB-PD), Vendor Defined Message (VDM) protocol support and other
functions as defined in the USB TypeC and USB Power Delivery
specifications.
ANX7688 is found on Acer Chromebook R13 (elm) and on
Pine64 PinePhone.
Signed-off-by: Dafna Hirschfeld <dafna.hirschfeld at collabora.com>
---
.../bindings/usb/analogix,anx7688.yaml | 177 ++++++++++++++++++
1 file changed, 177 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/analogix,anx7688.yaml
diff --git a/Documentation/devicetree/bindings/usb/analogix,anx7688.yaml b/Documentation/devicetree/bindings/usb/analogix,anx7688.yaml
new file mode 100644
index 000000000000..6c4dd6b4b28b
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/analogix,anx7688.yaml
@@ -0,0 +1,177 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/analogix,anx7688.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Analogix ANX7688 Type-C Port Controller with HDMI to DP conversion
+
+maintainers:
+ - Nicolas Boichat <drinkcat at chromium.org>
+ - Enric Balletbo i Serra <enric.balletbo at collabora.com>
+
+description: |
+ ANX7688 is a USB Type-C port controller with a MUX. It converts HDMI 2.0 to
+ DisplayPort 1.3 Ultra-HDi (4096x2160p60).
+ The integrated crosspoint switch (the MUX) supports USB 3.1 data transfer along with
+ the DisplayPort Alternate Mode signaling over USB Type-C. Additionally,
+ an on-chip microcontroller (OCM) is available to manage the signal switching,
+ Channel Configuration (CC) detection, USB Power Delivery (USB-PD), Vendor
+ Defined Message (VDM) protocol support and other functions as defined in the
+ USB TypeC and USB Power Delivery specifications.
+
+
+properties:
+ compatible:
+ const: analogix,anx7688
+
+ reg:
+ maxItems: 1
+
+ avdd33-supply:
+ description: 3.3V Analog core supply voltage.
+
+ dvdd18-supply:
+ description: 1.8V Digital I/O supply voltage.
+
+ avdd18-supply:
+ description: 1.8V Analog core power supply voltage.
+
+ avdd10-supply:
+ description: 1.0V Analog core power supply voltage.
+
+ dvdd10-supply:
+ description: 1.0V Digital core supply voltage.
+
+ hdmi5v-supply:
+ description: 5V power supply for the HDMI.
+
+ hdmi_vt-supply:
+ description: Termination voltage for HDMI input.
+
+ clocks:
+ description: The input clock specifier.
+ maxItems: 1
+
+ clock-names:
+ items:
+ - const: xtal
+
+ hpd-gpios:
+ description: |
+ In USB Type-C applications, DP_HPD has no use. In standard DisplayPort
+ applications, DP_HPD is used as DP hot-plug.
+ maxItems: 1
+
+ enable-gpios:
+ description: Chip power down control. No internal pull-down or pull-up resistor.
+ maxItems: 1
+
+ reset-gpios:
+ description: Reset input signal. Active low.
+ maxItems: 1
+
+ vbus-det-gpios:
+ description: |
+ An input gpio for VBUS detection and high voltage detection,
+ external resistance divide VBUS voltage to 1/8.
+ maxItems: 1
+
+ interrupts:
+ description: |
+ The interrupt notifies 4 possible events - TCPC ALERT int, PD int, DP int, HDMI int.
+ maxItems: 1
+
+ cabledet-gpios:
+ description: An output gpio, indicates by the device that a cable is plugged.
+ maxItems: 1
+
+ vbus-ctrl-gpios:
+ description:
+ External VBUS power path. Enable VBUS source and disable VBUS sink or vice versa.
+ maxItems: 1
+
+ vconn-en1-gpios:
+ description: Controls the VCONN switch on the CC1 pin.
+ maxItems: 1
+
+ vconn-en2-gpios:
+ description: Controls the VCONN switch on the CC2 pin.
+ maxItems: 1
+
+ ports:
+ $ref: /schemas/graph.yaml#/properties/ports
+
+ properties:
+ port at 0:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: Video port for HDMI input.
+
+ port at 1:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: USB port for the USB3 input.
+
+ port at 2:
+ $ref: /schemas/graph.yaml#/properties/port
+ description: USB Type-c connector, see connector/usb-connector.yaml.
+
+ required:
+ - port at 0
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+ #include <dt-bindings/interrupt-controller/irq.h>
+
+ i2c0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ anx7688: anx7688 at 2c {
+ compatible = "analogix,anx7688";
+ reg = <0x2c>;
+ avdd33-supply = <®_dcdc1>;
+ dvdd18-supply = <®_ldo_io1>;
+ avdd18-supply = <®_ldo_io1>;
+ avdd10-supply = <®_anx1v0>;
+ dvdd10-supply = <®_anx1v0>;
+ hdmi_vt-supply = <®_dldo1>;
+ enable-gpios = <&pio 3 10 GPIO_ACTIVE_LOW>; /* PD10 */
+ reset-gpios = <&pio 3 6 GPIO_ACTIVE_HIGH>; /* PD6 */
+ interrupt-parent = <&r_pio>;
+ interrupts = <0 11 IRQ_TYPE_EDGE_FALLING>; /* PL11 */
+ cabledet-gpios = <&r_pio 0 8 GPIO_ACTIVE_HIGH>; /* PL8 */
+ vconn-en1-gpios = <&pio 3 9 GPIO_ACTIVE_LOW>; /* PD9 */
+ vconn-en2-gpios = <&pio 3 9 GPIO_ACTIVE_LOW>; /* PD9 */
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port at 0 {
+ reg = <0>;
+ anx7688_in0: endpoint {
+ remote-endpoint = <&hdmi0_out>;
+ };
+ };
+
+ port at 1 {
+ reg = <1>;
+ anx7688_in1: endpoint {
+ remote-endpoint = <&usbdrd_phy_ss>;
+ };
+ };
+ port at 2 {
+ reg = <2>;
+ anx7688_out: endpoint {
+ remote-endpoint = <&typec_connector>;
+ };
+ };
+ };
+ };
+ };
--
2.17.1
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