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author | Madhusudanarao Amara <[email protected]> | 2020-12-16 19:39:18 +0530 |
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committer | Greg Kroah-Hartman <[email protected]> | 2020-12-28 15:44:26 +0100 |
commit | 0f041b8592daaaea46e91a8ebb3b47e6e0171fd8 (patch) | |
tree | 2e0d68ccf1629e72d5de4535dc0ff2847220b62d /tools/perf/scripts/python/exported-sql-viewer.py | |
parent | 5e5ff0b4b6bcb4d17b7a26ec8bcfc7dd4651684f (diff) |
usb: typec: intel_pmc_mux: Configure HPD first for HPD+IRQ request
Warm reboot scenarios some times type C Mux driver gets Mux configuration
request as HPD=1,IRQ=1. In that scenario typeC Mux driver need to configure
Mux as follows as per IOM requirement:
(1). Confgiure Mux HPD = 1, IRQ = 0
(2). Configure Mux with HPD = 1, IRQ = 1
IOM expects TypeC Mux configuration as follows:
(1). HPD=1, IRQ=0
(2). HPD=1, IRQ=1
if IOM gets mux config request (2) without configuring (1), it will ignore
the request. The impact of this is there is no DP_alt mode display.
Fixes: 43d596e32276 ("usb: typec: intel_pmc_mux: Check the port status before connect")
Cc: [email protected]
Reviewed-by: Heikki Krogerus <[email protected]>
Signed-off-by: Madhusudanarao Amara <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/exported-sql-viewer.py')
0 files changed, 0 insertions, 0 deletions