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>,
Rob Herring <robh+dt@kernel.org>,
Lee Jones <lee.jones@linaro.org>, Mark Brown <broonie@kernel.org>,
Maxime Ripard <mripard@kernel.org>,
Alexandre Belloni <alexandre.belloni@bootlin.com>,
Thierry Reding <treding@nvidia.com>,
Prashant Malani <pmalani@chromium.org>,
Badhri Jagan Sridharan <badhri@google.com>
Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-usb@vger.kernel.org
Subject: [PATCH v9 05/15] dt-bindings: connector: Add property to set initial current cap for FRS
Date: Mon, 28 Sep 2020 19:39:54 -0700
Message-ID: <20200929024004.244992-6-badhri@google.com> (raw)
In-Reply-To: <20200929024004.244992-1-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.
Changes since v6:
- Removed the redundant usb-connector.txt that I created by mistake.
- Moved to yaml.
Changes since v7:
- Rebase
Changes since v8:
- Redefine new-source-frs-typec-current as string enums to address
Rob Herring's comment.
---
.../bindings/connector/usb-connector.yaml | 26 +++++++++++++++++++
include/dt-bindings/usb/pd.h | 10 +++++++
2 files changed, 36 insertions(+)
diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 9bd52e63c935..0b8cd08a8678 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -142,6 +142,32 @@ properties:
required:
- port@0
+ new-source-frs-typec-current:
+ description: 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. The sink PDO from current source
+ reflects the current source's(i.e. transmitter of the FRS signal) power
+ requirement during fr swap. The current sink (i.e. receiver of the FRS signal),
+ a.k.a new source, should check if it will be able to satisfy the current source's,
+ new sink's, requirement during frswap before enabling the frs signal reception.
+ This property refers to maximum current capability that the current sink can
+ satisfy. During FRS, VBUS voltage is at 5V, as the partners are in implicit
+ contract, hence, the power level is only a function of the current capability.
+ "not-supported" implies sink to source fast role swap not supported.
+ "default" refers to default USB power level as described by
+ "Table 6-14 Fixed Supply PDO - Sink".
+ "1.5A" refers to 1.5A@5V.
+ "3.0A" refers to 3.0A@5V.
+
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - not-supported
+ - default
+ - 1.5A
+ - 3.0A
+
required:
- compatible
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 */
--
2.28.0.709.gb0816b6eb0-goog
next prev parent reply index
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-29 2:39 [PATCH v9 00/15] TCPM support for FRS and AutoDischarge Disconnect Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 01/15] usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 02/15] usb: typec: tcpci: Add set_vbus tcpci callback Badhri Jagan Sridharan
2020-10-02 13:39 ` Greg Kroah-Hartman
2020-10-02 13:40 ` Greg Kroah-Hartman
2020-10-02 16:08 ` Badhri Jagan Sridharan
2020-10-03 15:57 ` Greg Kroah-Hartman
2020-10-08 6:32 ` Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 03/15] dt-bindings: usb: Maxim type-c controller device tree binding document Badhri Jagan Sridharan
2020-10-05 14:46 ` Rob Herring
2020-10-08 0:42 ` Badhri Jagan Sridharan
2020-10-13 13:43 ` Rob Herring
2020-10-13 13:50 ` Rob Herring
2020-10-20 6:16 ` Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 04/15] usb: typec: tcpci_maxim: Chip level TCPC driver Badhri Jagan Sridharan
2020-09-29 2:39 ` Badhri Jagan Sridharan [this message]
2020-10-06 18:29 ` [PATCH v9 05/15] dt-bindings: connector: Add property to set initial current cap for FRS Rob Herring
2020-10-08 1:06 ` Badhri Jagan Sridharan
2020-10-13 14:15 ` Rob Herring
2020-10-20 9:43 ` Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 06/15] usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS) Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 07/15] usb: typec: tcpci: Implement callbacks for FRS Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 08/15] usb: typec: tcpci_maxim: Add support for Sink FRS Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 09/15] usb: typec: tcpm: frs sourcing vbus callback Badhri Jagan Sridharan
2020-09-29 2:39 ` [PATCH v9 10/15] usb: typec: tcpci: " Badhri Jagan Sridharan
2020-09-29 2:40 ` [PATCH v9 11/15] usb: typec: tcpci_max77759: Fix vbus stuck on upon diconnecting sink Badhri Jagan Sridharan
2020-09-29 2:40 ` [PATCH v9 12/15] usb: typec: tcpm: Parse frs type-c current from device tree Badhri Jagan Sridharan
2020-09-29 2:40 ` [PATCH v9 13/15] usb: typec: tcpm: Implement enabling Auto Discharge disconnect support Badhri Jagan Sridharan
2020-09-29 2:40 ` [PATCH v9 14/15] usb: typec: tcpci: Implement Auto discharge disconnect callbacks Badhri Jagan Sridharan
2020-09-29 2:40 ` [PATCH v9 15/15] usb: typec: tcpci_maxim: Enable auto discharge disconnect Badhri Jagan Sridharan
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=20200929024004.244992-6-badhri@google.com \
--to=badhri@google.com \
--cc=alexandre.belloni@bootlin.com \
--cc=broonie@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=gregkh@linuxfoundation.org \
--cc=heikki.krogerus@linux.intel.com \
--cc=lee.jones@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=linux@roeck-us.net \
--cc=mripard@kernel.org \
--cc=pmalani@chromium.org \
--cc=robh+dt@kernel.org \
--cc=treding@nvidia.com \
/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
Linux-USB Archive on lore.kernel.org
Archives are clonable:
git clone --mirror https://lore.kernel.org/linux-usb/0 linux-usb/git/0.git
# If you have public-inbox 1.1+ installed, you may
# initialize and index your mirror using the following commands:
public-inbox-init -V2 linux-usb linux-usb/ https://lore.kernel.org/linux-usb \
linux-usb@vger.kernel.org
public-inbox-index linux-usb
Example config snippet for mirrors
Newsgroup available over NNTP:
nntp://nntp.lore.kernel.org/org.kernel.vger.linux-usb
AGPL code for this site: git clone https://public-inbox.org/public-inbox.git