FAILED: patch "[PATCH] usb: typec: tcpm: clear pd_event queue in PORT_RESET" failed to apply to 5.15-stable tree
Subsystems (4)
[email protected]
maintainerThe patch below does not apply to the 5.15-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y
git checkout FETCH_HEAD
git cherry-pick -x bf20c69cf3cf9c6445c4925dd9a8a6ca1b78bfdf
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2024051335-augmented-overblown-4920@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
bf20c69cf3cf ("usb: typec: tcpm: clear pd_event queue in PORT_RESET") 197331b27ac8 ("usb: typec: tpcm: Fix PORT_RESET behavior for self powered devices") 1e35f074399d ("usb: typec: tcpm: fix cc role at port reset")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From bf20c69cf3cf9c6445c4925dd9a8a6ca1b78bfdf Mon Sep 17 00:00:00 2001
From: RD Babiera <[email protected]>
Date: Tue, 23 Apr 2024 20:27:16 +0000
Subject: [PATCH] usb: typec: tcpm: clear pd_event queue in PORT_RESET
When a Fast Role Swap control message attempt results in a transition to ERROR_RECOVERY, the TCPC can still queue a TCPM_SOURCING_VBUS event.
If the event is queued but processed after the tcpm_reset_port() call in the PORT_RESET state, then the following occurs:
1. tcpm_reset_port() calls tcpm_init_vbus() to reset the vbus sourcing and sinking state
2. tcpm_pd_event_handler() turns VBUS on before the port is in the default state.
3. The port resolves as a sink. In the SNK_DISCOVERY state, tcpm_set_charge() cannot set vbus to charge.
Clear pd events within PORT_RESET to get rid of non-applicable events.
drivers/usb/typec/tcpm/tcpm.c +1 -0
@@ -5605,6 +5605,7 @@ static void run_state_machine(struct tcpm_port *port)break ;case PORT_RESET :tcpm_reset_port (port); + port->pd_events =0 ;if (port->self_powered)tcpm_set_cc (port,TYPEC_CC_OPEN );else