From dbfe5ed512963ad172d4b79e7369f60f69877ff4 Mon Sep 17 00:00:00 2001
From: Joseph Chen <chenjh@rock-chips.com>
Date: Wed, 25 Dec 2019 10:51:18 +0800
Subject: [PATCH] dm: misc: add ioctl request command definition

Available for caller to call misc_ioctl(...).

Signed-off-by: Joseph Chen <chenjh@rock-chips.com>
Signed-off-by: Jason Zhu <jason.zhu@rock-chips.com>
Change-Id: Ibac22caf80968ecc7f952d04aa2a1a0f8ad3417a
---
 include/misc.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/misc.h b/include/misc.h
index 03ef55cdc8..3b25b95378 100644
--- a/include/misc.h
+++ b/include/misc.h
@@ -7,6 +7,15 @@
 #ifndef _MISC_H_
 #define _MISC_H_
 
+#include <asm-generic/ioctl.h>
+
+/*
+ * Request command to be sent for misc_ioctl().
+ */
+#define IOCTL_REQ_START		_IO('m', 0x01)
+#define IOCTL_REQ_STOP		_IO('m', 0x02)
+#define IOCTL_REQ_POLL		_IO('m', 0x03)
+
 /*
  * Read the device to buffer, optional.
  *