1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/delay.h b/include/linux/delay.h
new file mode 100644
index 0000000..71a38e1
--- /dev/null
+++ b/include/linux/delay.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+#ifndef _LINUX_DELAY_H
+#define _LINUX_DELAY_H
+
+#include <linux/kernel.h>
+
+void __udelay(unsigned long usec);
+void udelay(unsigned long usec);
+
+static inline void mdelay(unsigned long msec)
+{
+	udelay(1000 * msec);
+}
+
+static inline void ndelay(unsigned long nsec)
+{
+	udelay(DIV_ROUND_UP(nsec, 1000));
+}
+
+#endif /* defined(_LINUX_DELAY_H) */