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Export an instance of the dual_role_usb class using the
provided helpers. This is an alternate set of sysfs nodes
that the Android framework uses to allow for user
interactive control of role switching.
Writing to the various properties achieves the following:
- mode: toggles between UFP/Sink and DFP/Source via soft
disconnect/reconnect without invoking PD.
- power_role: toggles between Source and Sink modes via
the PR_Swap operation
- data_role: toggles between UFP (device) and DFP (host) via
the DR_Swap operation
Android currently expects a single instance named "otg_default".
Change-Id: I7060b6f379bc8bed24b59d9df4ca2fb331437363
Signed-off-by: Jack Pham <jackp@codeaurora.org>
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The QPNP PD PHY resides in the PMIC and handles USB Power Delivery
data transmission and reception over the CC lines. This driver
communicates to this device over SPMI or I2C buses. Introduce APIs
that upper layers will use to implement the protocol layer and
policy engine.
Change-Id: I75dec23c297fd5e07d14741e6627b473012b7a01
Signed-off-by: Hemant Kumar <hemantk@codeaurora.org>
Signed-off-by: Jack Pham <jackp@codeaurora.org>
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Add PD policy engine driver. This driver will interact
with the charger/Type-C module via power_supply framework,
and in turn notify the USB controller on when to begin/end
data operation using extcon. For this initial patch this
driver is simply acting as a pass-through between Type-C
connection states and relaying them as USB/USB_HOST
notifications.
Change-Id: Ieba8e68761beef83a572b75b6b5f3b7ab7802e9e
Signed-off-by: Jack Pham <jackp@codeaurora.org>
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