support i3c auto hot-join and fix wrong gpio setting #134
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jc849
commented
Sep 20, 2024
jc849
commented
- support i3c auto hot-join
- fix wrong gpio setting
added 5 commits
September 18, 2024 01:33
add npcm4xx i3c reset function. Signed-off-by: James Chiang <[email protected]>
enhance i3c hot-join request flow.
i3c hw fail to generate hot-join event when bus is not in the idle
status, and the fail would lead hw into stuck state.
(1) check dynamic address present or not before generate hot-join
event.
(2) check entdaa progress before generate hot-join event.
(3) after wait util bus idle, check dynamic address present or not.
(4) remove disable slave mode since hot-join event could generate
even if slave mode enabled.
(5) if ctrl keep hot-join event for a while, check dynamic address
present or not.
(6) reset i3c controller after timeout and retry generate hot-join
event.
Signed-off-by: James Chiang <[email protected]>
support auto hot-join request. use software to simulate auto hot-join flow. (1) system power up, monitor bus status in interrupt, and generate hot-join event when received stop message. (2) watchdog or software reset, generate hot-join event immediately. Signed-off-by: James Chiang <[email protected]>
add error handling when master read timeout. Signed-off-by: James Chiang <[email protected]>
…mode fix wrong setting when setup gpio open drain mode. only output open drain mode with pull-up setting need enable DEVALTCX bit. Signed-off-by: James Chiang <[email protected]>
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