From: Badhri Jagan Sridharan <badhri@google.com>
To: Guenter Roeck <linux@roeck-us.net>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
Badhri Jagan Sridharan <badhri@google.com>
Subject: [PATCH v6 08/14] dt-bindings: connector: Add property to set initial current cap for FRS
Date: Mon, 31 Aug 2020 19:59:21 -0700 [thread overview]
Message-ID: <20200901025927.3596190-9-badhri@google.com> (raw)
In-Reply-To: <20200901025927.3596190-1-badhri@google.com>
This change adds frs-typec-current which allows setting the initial current
capability of the new source when vSafe5V is applied during PD3.0
sink Fast Role Swap.
Signed-off-by: Badhri Jagan Sridharan <badhri@google.com>
---
Changes since v1:
- Changing patch version to v6 to fix version number confusion.
---
.../bindings/connector/usb-connector.txt | 128 ++++++++++++++++++
include/dt-bindings/usb/pd.h | 10 ++
2 files changed, 138 insertions(+)
create mode 100644 Documentation/devicetree/bindings/connector/usb-connector.txt
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.txt b/Documentation/devicetree/bindings/connector/usb-connector.txt
new file mode 100644
index 000000000000..e2f6e0f07d00
--- /dev/null
+++ b/Documentation/devicetree/bindings/connector/usb-connector.txt
@@ -0,0 +1,128 @@
+USB Connector
+=============
+
+USB connector node represents physical USB connector. It should be
+a child of USB interface controller.
+
+Required properties:
+- compatible: describes type of the connector, must be one of:
+ "usb-a-connector",
+ "usb-b-connector",
+ "usb-c-connector".
+
+Optional properties:
+- label: symbolic name for the connector,
+- type: size of the connector, should be specified in case of USB-A, USB-B
+ non-fullsize connectors: "mini", "micro".
+
+Optional properties for usb-c-connector:
+- power-role: should be one of "source", "sink" or "dual"(DRP) if typec
+ connector has power support.
+- try-power-role: preferred power role if "dual"(DRP) can support Try.SNK
+ or Try.SRC, should be "sink" for Try.SNK or "source" for Try.SRC.
+- data-role: should be one of "host", "device", "dual"(DRD) if typec
+ connector supports USB data.
+- frs-typec-current - Initial current capability of the new source when vSafe5V
+ is applied during PD3.0 Fast Role Swap. "Table 6-14 Fixed Supply PDO - Sink"
+ of "USB Power Delivery Specification Revision 3.0, Version 1.2" provides the
+ different power levels and "6.4.1.3.1.6 Fast Role Swap USB Type-C Current"
+ provides a detailed description of the field.
+ 0: Fast role swap not supported
+ 1: Default USB Power
+ 2: 1.5A @ 5V
+ 3: 3A @ 5V.
+
+Required properties for usb-c-connector with power delivery support:
+- source-pdos: An array of u32 with each entry providing supported power
+ source data object(PDO), the detailed bit definitions of PDO can be found
+ in "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.2
+ Source_Capabilities Message, the order of each entry(PDO) should follow
+ the PD spec chapter 6.4.1. Required for power source and power dual role.
+ User can specify the source PDO array via PDO_FIXED/BATT/VAR/PPS_APDO()
+ defined in dt-bindings/usb/pd.h.
+- sink-pdos: An array of u32 with each entry providing supported power
+ sink data object(PDO), the detailed bit definitions of PDO can be found
+ in "Universal Serial Bus Power Delivery Specification" chapter 6.4.1.3
+ Sink Capabilities Message, the order of each entry(PDO) should follow
+ the PD spec chapter 6.4.1. Required for power sink and power dual role.
+ User can specify the sink PDO array via PDO_FIXED/BATT/VAR/PPS_APDO() defined
+ in dt-bindings/usb/pd.h.
+- op-sink-microwatt: Sink required operating power in microwatt, if source
+ can't offer the power, Capability Mismatch is set. Required for power
+ sink and power dual role.
+
+Required nodes:
+- any data bus to the connector should be modeled using the OF graph bindings
+ specified in bindings/graph.txt, unless the bus is between parent node and
+ the connector. Since single connector can have multpile data buses every bus
+ has assigned OF graph port number as follows:
+ 0: High Speed (HS), present in all connectors,
+ 1: Super Speed (SS), present in SS capable connectors,
+ 2: Sideband use (SBU), present in USB-C.
+
+Examples
+--------
+
+1. Micro-USB connector with HS lines routed via controller (MUIC):
+
+muic-max77843@66 {
+ ...
+ usb_con: connector {
+ compatible = "usb-b-connector";
+ label = "micro-USB";
+ type = "micro";
+ };
+};
+
+2. USB-C connector attached to CC controller (s2mm005), HS lines routed
+to companion PMIC (max77865), SS lines to USB3 PHY and SBU to DisplayPort.
+DisplayPort video lines are routed to the connector via SS mux in USB3 PHY.
+
+ccic: s2mm005@33 {
+ ...
+ usb_con: connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ port@0 {
+ reg = <0>;
+ usb_con_hs: endpoint {
+ remote-endpoint = <&max77865_usbc_hs>;
+ };
+ };
+ port@1 {
+ reg = <1>;
+ usb_con_ss: endpoint {
+ remote-endpoint = <&usbdrd_phy_ss>;
+ };
+ };
+ port@2 {
+ reg = <2>;
+ usb_con_sbu: endpoint {
+ remote-endpoint = <&dp_aux>;
+ };
+ };
+ };
+ };
+};
+
+3. USB-C connector attached to a typec port controller(ptn5110), which has
+power delivery support and enables drp.
+
+typec: ptn5110@50 {
+ ...
+ usb_con: connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ power-role = "dual";
+ try-power-role = "sink";
+ source-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)>;
+ sink-pdos = <PDO_FIXED(5000, 2000, PDO_FIXED_USB_COMM)
+ PDO_VAR(5000, 12000, 2000)>;
+ op-sink-microwatt = <10000000>;
+ };
+};
diff --git a/include/dt-bindings/usb/pd.h b/include/dt-bindings/usb/pd.h
index 985f2bbd4d24..db1ad4532197 100644
--- a/include/dt-bindings/usb/pd.h
+++ b/include/dt-bindings/usb/pd.h
@@ -35,6 +35,16 @@
#define VSAFE5V 5000 /* mv units */
+/*
+ * Based on "Table 6-14 Fixed Supply PDO - Sink" of "USB Power Delivery Specification Revision 3.0,
+ * Version 1.2"
+ * Initial current capability of the new source when vSafe5V is applied.
+ */
+#define FRS_NOT_SUPPORTED 0
+#define FRS_DEFAULT_POWER 1
+#define FRS_5V_1P5A 2
+#define FRS_5V_3A 3
+
#define PDO_BATT_MAX_VOLT_SHIFT 20 /* 50mV units */
#define PDO_BATT_MIN_VOLT_SHIFT 10 /* 50mV units */
#define PDO_BATT_MAX_PWR_SHIFT 0 /* 250mW units */
--
2.28.0.402.g5ffc5be6b7-goog
next prev parent reply other threads:[~2020-09-01 3:00 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-01 2:59 [PATCH v6 00/14] TCPM support for FRS and AutoDischarge Disconnect Badhri Jagan Sridharan
2020-09-01 2:59 ` [PATCH v6 01/14] usb: typec: tcpci: Add register definitions to tcpci Badhri Jagan Sridharan
2020-09-15 12:10 ` Heikki Krogerus
2020-09-01 2:59 ` [PATCH v6 02/14] usb: typec: tcpci: Add support when hidden tx registers are inaccessible Badhri Jagan Sridharan
2020-09-15 12:11 ` Heikki Krogerus
2020-09-01 2:59 ` [PATCH v6 03/14] usb: typec: tcpci: update ROLE_CONTROL for DRP Badhri Jagan Sridharan
2020-09-15 12:12 ` Heikki Krogerus
2020-09-01 2:59 ` [PATCH v6 04/14] usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference Badhri Jagan Sridharan
2020-09-15 12:16 ` Heikki Krogerus
2020-09-01 2:59 ` [PATCH v6 05/14] usb: typec: tcpci: Add set_vbus tcpci callback Badhri Jagan Sridharan
2020-09-15 12:22 ` Heikki Krogerus
2020-09-16 9:07 ` Badhri Jagan Sridharan
2020-09-01 2:59 ` [PATCH v6 06/14] dt-bindings: usb: Maxim type-c controller device tree binding document Badhri Jagan Sridharan
2020-09-01 2:59 ` [PATCH v6 07/14] usb: typec: tcpci_maxim: Chip level TCPC driver Badhri Jagan Sridharan
2020-09-15 12:43 ` Heikki Krogerus
2020-09-16 9:34 ` Badhri Jagan Sridharan
2020-09-01 2:59 ` Badhri Jagan Sridharan [this message]
2020-09-01 2:59 ` [PATCH v6 09/14] usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS) Badhri Jagan Sridharan
2020-09-15 13:20 ` Heikki Krogerus
2020-09-17 10:23 ` Badhri Jagan Sridharan
2020-09-01 2:59 ` [PATCH v6 10/14] usb: typec: tcpci: Implement callbacks for FRS Badhri Jagan Sridharan
2020-09-15 13:23 ` Heikki Krogerus
2020-09-01 2:59 ` [PATCH v6 11/14] usb: typec: tcpci_maxim: Add support for Sink FRS Badhri Jagan Sridharan
2020-09-15 13:25 ` Heikki Krogerus
2020-09-01 2:59 ` [PATCH v6 12/14] usb: typec: tcpm: Implement enabling Auto Discharge disconnect support Badhri Jagan Sridharan
2020-09-01 2:59 ` [PATCH v6 13/14] usb: typec: tcpci: Implement Auto discharge disconnect callbacks Badhri Jagan Sridharan
2020-09-01 2:59 ` [PATCH v6 14/14] usb: typec: tcpci_maxim: Implemnent set_auto_vbus_discharge_threshold Badhri Jagan Sridharan
2020-09-15 12:09 ` [PATCH v6 00/14] TCPM support for FRS and AutoDischarge Disconnect Heikki Krogerus
2020-09-15 16:57 ` Badhri Jagan Sridharan
2020-09-15 13:33 ` Heikki Krogerus
2020-09-15 16:59 ` Badhri Jagan Sridharan
2020-09-16 11:05 ` Greg Kroah-Hartman
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200901025927.3596190-9-badhri@google.com \
--to=badhri@google.com \
--cc=gregkh@linuxfoundation.org \
--cc=heikki.krogerus@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=linux@roeck-us.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).