i3c: master: Reject IBI requests from non-IBI-capable devices

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i3c_device_request_ibi() does not verify that a device advertises IBI
support before attempting to set up IBI handling.

Add a check for I3C_BCR_IBI_REQ_CAP and fail with -EOPNOTSUPP when IBI
support is not reported by the device.  This keeps IBI setup consistent
with other IBI-related functionality, such as exposing wakeup capability
only for IBI-capable devices.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260807145638.168865-12-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

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Adrian Hunter 2026-08-07 17:56:35 +03:00 • committed by Alexandre Belloni

parent 60ff731f06

commit 087efc8e88

1 changed files with 5 additions and 3 deletions

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drivers/i3c/device.c

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