Better enforces that only one DisplayPort poll thread should be
active at once. If a new call to setup is made from additional
bind uevents before a disconnect occurs, tells the old thread
to shutdown and awaits signaling before a new worker thread spins
up.
Test: manual testing on device
Bug: 286593610
Change-Id: I1707970c500915fd4abb161d0b3a424bbb2bddca
(cherrypicked from commit 78f6294e381ca4df70b28d1d0f07aff77b73574c)
Signed-off-by: RD Babiera <rdbabiera@google.com>
When booting check whether displayport driver has been probed and
signal hpd events as needed. Pin config and orientation needs to
be queried before signalling hpd.
Test: Manual verification on device
Bug: 297286558
Change-Id: Iddb0921b363e49c41c0f6f635887b4daf4d19561
(cherry picked from commit 574d046bd7c3a2d81f48caf3881a61ad0d283e9a)
Signed-off-by: RD Babiera <rdbabiera@google.com>
Monitor typec stack for irq_hpd events and signal irq_hpd when the
irq_hpd counter value read is not the same as the previously cached
value.
Test: Manual verification on device
Bug: 297286558
Change-Id: Id4a72afcf85550cabbc2f9469bb0ccb92cd02ad2
(cherry picked from commit 412f31194c8b169806a2c0df85ef6bf69cf7af0b)
Signed-off-by: RD Babiera <rdbabiera@google.com>
Passes usb object reference to thread creation of
mDisplayPortShutdownHelper so that it can properly call DisplayPort
shutdown method instead of calling on NULL reference.
Test: manual test on device
Bug: 297286558
Change-Id: Ie4dabb5e3ae9065f57cc0fbf2593fbe399097472
(cherry picked from commit cc50d9950807280653973a0dd9cd3b22e323bcd5)
Signed-off-by: RD Babiera <rdbabiera@google.com>
Write pin assignment, hpd, and orientation from type-c class to
drmdp platform device attributes using epoll when displayport
driver binds to device, and determine whether or not to shut down
epoll on displayport driver change uevents.
Test: manual testing with form factor device
Bug: 297286558
(cherry picked from commit de0fc9d2201685b5eb4c3905e652911b192a542f)
Change-Id: Iec9fc76166481a4611bb2fc023aea044b497f2c0
Signed-off-by: RD Babiera <rdbabiera@google.com>
