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authorRD Babiera <rdbabiera@google.com>2025-06-23 20:49:45 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-06-24 15:39:58 +0100
commit8b4f6fafed6cd9a36716dd4846f27cc543f52303 (patch)
treecc1afba0aa93b7128de8a889010a56048fa21a7f /tools/perf/scripts/python/check-perf-trace.py
parent9962d0433a86c7d1222206dff1f8eafaab6faafa (diff)
usb: typec: altmodes/displayport: add irq_hpd to sysfs
Add irq_hpd sysfs node to displayport driver. This allows the userspace to subscribe to irq events similar to how it can subscribe to changes in hpd. irq_hpd is read only and returns the number of irq events generated since driver probe. pending_irq_hpd is added so that a sysfs_emit can be generated if the HPD high event belonging to the same status message is delayed until a successful configuration. Signed-off-by: RD Babiera <rdbabiera@google.com> Reviewed-by: Badhri Jagan Sridharan <badhri@google.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Link: https://lore.kernel.org/r/20250623204947.732915-2-rdbabiera@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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