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i3c: export SETDASA method

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Because not all I3C drivers have the hot-join feature ready, and
especially not all I3C devices support hot-join feature, exporting
SETDASA method could be useful. With this function, the I3C controller
could perform a DAA to I3C devices when users decide to turn these I3C
devices off and on again during run-time.

Tested: This change has been tested with turnning off an I3C device and
turning on it again during run-time. The device driver calls SETDASA
method to perform DAA to the device. And communication between I3C
controller and device is set up again correctly.

Signed-off-by: Jack Chen <zenghuchen@google.com>
Link: https://lore.kernel.org/r/20221207205059.3848851-1-zenghuchen@google.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Jack Chen
2022-12-07 15:50:59 -05:00
committed by Alexandre Belloni
parent 01744ce9f0
commit 672825cd28
4 changed files with 42 additions and 0 deletions
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2
include/linux/i3c/device.h
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@@ -294,6 +294,8 @@ int i3c_device_do_priv_xfers(struct i3c_device *dev,
struct i3c_priv_xfer *xfers,
int nxfers);
int i3c_device_do_setdasa(struct i3c_device *dev);
void i3c_device_get_info(struct i3c_device *dev, struct i3c_device_info *info);
struct i3c_ibi_payload {