From bb3b2cfeb206f5b10b859e134651b54120e3f530 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linusw@kernel.org>
Date: Tue, 30 Jun 2026 18:05:56 +0100
Subject: ARM: 9480/1: entry: expand comment in __switch_to

As per discussion between the developers in the mail thread
linked, expand the comment in __switch_to so that readers
of the code understand what is going on.

Suggested-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linusw@kernel.org>>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
---
 drivers/usb/chipidea/trace.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 drivers/usb/chipidea/trace.c

(limited to 'drivers/usb/chipidea/trace.c')

diff --git a/drivers/usb/chipidea/trace.c b/drivers/usb/chipidea/trace.c
new file mode 100644
index 000000000..f6402630a
--- /dev/null
+++ b/drivers/usb/chipidea/trace.c
@@ -0,0 +1,23 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Chipidea Device Mode Trace Support
+ *
+ * Copyright (C) 2020 NXP
+ *
+ * Author: Peter Chen <peter.chen@nxp.com>
+ */
+
+#define CREATE_TRACE_POINTS
+#include "trace.h"
+
+void ci_log(struct ci_hdrc *ci, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, fmt);
+	vaf.fmt = fmt;
+	vaf.va = &args;
+	trace_ci_log(ci, &vaf);
+	va_end(args);
+}
-- 
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