blob: 6b0c143ec6261afa6486e9d9cf465235720fd8ab (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
From 080f1a0c539180a88066fb004a8c31eefdf74161 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Fri, 9 Aug 2013 18:47:27 +0200
Subject: [PATCH 02/25] reset: Fix compile when reset RESET_CONTROLLER is not
selected
Drivers need to protect their reset api calls with #ifdef to avoid compile
errors.
This patch adds dummy wrappers in the same way that linux/of.h does it.
Cc: linux-kernel@vger.kernel.org
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: Gabor Juhos <juhosg@openwrt.org>
---
include/linux/reset-controller.h | 16 ++++++++++++++
include/linux/reset.h | 43 ++++++++++++++++++++++++++++++++++++++
2 files changed, 59 insertions(+)
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -45,7 +45,23 @@ struct reset_controller_dev {
unsigned int nr_resets;
};
+#if defined(CONFIG_RESET_CONTROLLER)
+
int reset_controller_register(struct reset_controller_dev *rcdev);
void reset_controller_unregister(struct reset_controller_dev *rcdev);
+#else
+
+static inline int reset_controller_register(struct reset_controller_dev *rcdev)
+{
+ return -ENOSYS;
+}
+
+void reset_controller_unregister(struct reset_controller_dev *rcdev)
+{
+
+}
+
+#endif
+
#endif
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -1,9 +1,13 @@
#ifndef _LINUX_RESET_H_
#define _LINUX_RESET_H_
+#include <linux/err.h>
+
struct device;
struct reset_control;
+#if defined(CONFIG_RESET_CONTROLLER)
+
int reset_control_reset(struct reset_control *rstc);
int reset_control_assert(struct reset_control *rstc);
int reset_control_deassert(struct reset_control *rstc);
@@ -14,4 +18,43 @@ struct reset_control *devm_reset_control
int device_reset(struct device *dev);
+#else /* CONFIG_RESET_CONTROLLER */
+
+static inline int reset_control_reset(struct reset_control *rstc)
+{
+ return -ENOSYS;
+}
+
+static inline int reset_control_assert(struct reset_control *rstc)
+{
+ return -ENOSYS;
+}
+
+static inline int reset_control_deassert(struct reset_control *rstc)
+{
+ return -ENOSYS;
+}
+
+static inline struct reset_control *reset_control_get(struct device *dev, const char *id)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static inline void reset_control_put(struct reset_control *rstc)
+{
+
+}
+
+static inline struct reset_control *devm_reset_control_get(struct device *dev, const char *id)
+{
+ return ERR_PTR(-ENOSYS);
+}
+
+static inline int device_reset(struct device *dev)
+{
+ return -ENOSYS;
+}
+
+#endif
+
#endif
|
