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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 v7 05/11] dt-bindings: connector: Add property to set initial current cap for FRS
Date: Thu, 17 Sep 2020 03:18:50 -0700	[thread overview]
Message-ID: <20200917101856.3156869-5-badhri@google.com> (raw)
In-Reply-To: <20200917101856.3156869-1-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.
---
 .../devicetree/bindings/connector/usb-connector.yaml   |  8 ++++++++
 include/dt-bindings/usb/pd.h                           | 10 ++++++++++
 2 files changed, 18 insertions(+)

diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 9bd52e63c935..1ca8e6a337e5 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -142,6 +142,14 @@ properties:
     required:
       - port@0
 
+  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.
+    $ref: /schemas/types.yaml#/definitions/uint32
+
 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 */
-- 
2.28.0.618.gf4bc123cb7-goog


  parent reply	other threads:[~2020-09-17 10:24 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-17 10:18 [PATCH v7 01/11] usb: typec: tcpci: Add a getter method to retrieve tcpm_port reference Badhri Jagan Sridharan
2020-09-17 10:18 ` [PATCH v7 02/11] usb: typec: tcpci: Add set_vbus tcpci callback Badhri Jagan Sridharan
2020-09-18 12:33   ` Heikki Krogerus
2020-09-17 10:18 ` [PATCH v7 03/11] dt-bindings: usb: Maxim type-c controller device tree binding document Badhri Jagan Sridharan
2020-09-17 10:18 ` [PATCH v7 04/11] usb: typec: tcpci_maxim: Chip level TCPC driver Badhri Jagan Sridharan
2020-09-18 12:35   ` Heikki Krogerus
2020-09-17 10:18 ` Badhri Jagan Sridharan [this message]
2020-09-20 14:09   ` [PATCH v7 05/11] dt-bindings: connector: Add property to set initial current cap for FRS Greg Kroah-Hartman
2020-09-20 23:06     ` Badhri Jagan Sridharan
2020-09-22  8:40       ` Greg Kroah-Hartman
2020-09-17 10:18 ` [PATCH v7 06/11] usb: typec: tcpm: Add support for Sink Fast Role SWAP(FRS) Badhri Jagan Sridharan
2020-09-18 12:36   ` Heikki Krogerus
2020-09-17 10:18 ` [PATCH v7 07/11] usb: typec: tcpci: Implement callbacks for FRS Badhri Jagan Sridharan
2020-09-17 10:18 ` [PATCH v7 08/11] usb: typec: tcpci_maxim: Add support for Sink FRS Badhri Jagan Sridharan
2020-09-17 10:18 ` [PATCH v7 09/11] usb: typec: tcpm: Implement enabling Auto Discharge disconnect support Badhri Jagan Sridharan
2020-09-17 10:18 ` [PATCH v7 10/11] usb: typec: tcpci: Implement Auto discharge disconnect callbacks Badhri Jagan Sridharan
2020-09-17 10:18 ` [PATCH v7 11/11] usb: typec: tcpci_maxim: Implemnent set_auto_vbus_discharge_threshold Badhri Jagan Sridharan
     [not found]   ` <20200918142007.GF1630537@kuha.fi.intel.com>
2020-09-19  2:53     ` Badhri Jagan Sridharan

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