Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 4801d4ea authored by Mathias Nyman's avatar Mathias Nyman Committed by Greg Kroah-Hartman
Browse files

xhci: clear extra bits from slot context when setting max exit latency 



If we need to change the max exit latency with a Evaluate Context
command, we copy the old output slot context and use it as input
context for the command. This also copies the dev_state bits which
are supposed to be zero in the input slot context.

Signed-off-by: default avatarMathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 69defe04

drivers/usb/host/xhci.c

+1 −0
Original line number Diff line number Diff line
@@ -4009,6 +4009,7 @@ static int __maybe_unused xhci_change_max_exit_latency(struct xhci_hcd *xhci, 
	slot_ctx = xhci_get_slot_ctx(xhci, command->in_ctx);

	slot_ctx->dev_info2 &= cpu_to_le32(~((u32) MAX_EXIT));

	slot_ctx->dev_info2 |= cpu_to_le32(max_exit_latency);

	slot_ctx->dev_state = 0;



	xhci_dbg_trace(xhci, trace_xhci_dbg_context_change,

			"Set up evaluate context for LPM MEL change.");