diff options
author | Tomasz Figa <t.figa@samsung.com> | 2014-03-17 18:28:09 -0400 |
---|---|---|
committer | Kukjin Kim <kgene.kim@samsung.com> | 2014-03-20 15:09:16 -0400 |
commit | 72551f6cf13e2f3a1d273b7007b5d7d7fd69c554 (patch) | |
tree | ebc79635f3b76e22d614297953608239b672fee4 /arch/arm/plat-samsung/include | |
parent | d38688a69fd88269eae3c7c66ec34fb02fb04fd1 (diff) |
ARM: SAMSUNG: Move Samsung PM debug code into separate file
Not all Samsung SoC platforms are going to use the legacy Samsung PM
code enabled by CONFIG_SAMSUNG_PM_DEBUG. To allow using Samsung PM debug
helpers on such platforms, related code is moved to separate file and
a plat/pm-common.h header is added to separate legacy and generic code.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-samsung/include')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/pm-common.h | 70 | ||||
-rw-r--r-- | arch/arm/plat-samsung/include/plat/pm.h | 39 |
2 files changed, 71 insertions, 38 deletions
diff --git a/arch/arm/plat-samsung/include/plat/pm-common.h b/arch/arm/plat-samsung/include/plat/pm-common.h new file mode 100644 index 000000000000..f72974a762bf --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/pm-common.h | |||
@@ -0,0 +1,70 @@ | |||
1 | /* | ||
2 | * Copyright (C) 2013 Samsung Electronics Co., Ltd. | ||
3 | * Tomasz Figa <t.figa@samsung.com> | ||
4 | * Copyright (c) 2004 Simtec Electronics | ||
5 | * http://armlinux.simtec.co.uk/ | ||
6 | * Written by Ben Dooks, <ben@simtec.co.uk> | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License version 2 as | ||
10 | * published by the Free Software Foundation. | ||
11 | */ | ||
12 | |||
13 | #ifndef __PLAT_SAMSUNG_PM_COMMON_H | ||
14 | #define __PLAT_SAMSUNG_PM_COMMON_H __FILE__ | ||
15 | |||
16 | /* PM debug functions */ | ||
17 | |||
18 | /** | ||
19 | * struct pm_uart_save - save block for core UART | ||
20 | * @ulcon: Save value for S3C2410_ULCON | ||
21 | * @ucon: Save value for S3C2410_UCON | ||
22 | * @ufcon: Save value for S3C2410_UFCON | ||
23 | * @umcon: Save value for S3C2410_UMCON | ||
24 | * @ubrdiv: Save value for S3C2410_UBRDIV | ||
25 | * | ||
26 | * Save block for UART registers to be held over sleep and restored if they | ||
27 | * are needed (say by debug). | ||
28 | */ | ||
29 | struct pm_uart_save { | ||
30 | u32 ulcon; | ||
31 | u32 ucon; | ||
32 | u32 ufcon; | ||
33 | u32 umcon; | ||
34 | u32 ubrdiv; | ||
35 | u32 udivslot; | ||
36 | }; | ||
37 | |||
38 | #ifdef CONFIG_SAMSUNG_PM_DEBUG | ||
39 | /** | ||
40 | * s3c_pm_dbg() - low level debug function for use in suspend/resume. | ||
41 | * @msg: The message to print. | ||
42 | * | ||
43 | * This function is used mainly to debug the resume process before the system | ||
44 | * can rely on printk/console output. It uses the low-level debugging output | ||
45 | * routine printascii() to do its work. | ||
46 | */ | ||
47 | extern void s3c_pm_dbg(const char *msg, ...); | ||
48 | |||
49 | /** | ||
50 | * s3c_pm_debug_init() - suspend/resume low level debug initialization. | ||
51 | * @base: Virtual base of UART to use for suspend/resume debugging. | ||
52 | * | ||
53 | * This function needs to be called before S3C_PMDBG() can be used, to set up | ||
54 | * UART port base address and configuration. | ||
55 | */ | ||
56 | extern void s3c_pm_debug_init(void); | ||
57 | |||
58 | #define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt) | ||
59 | |||
60 | extern void s3c_pm_save_uarts(void); | ||
61 | extern void s3c_pm_restore_uarts(void); | ||
62 | #else | ||
63 | #define S3C_PMDBG(fmt...) pr_debug(fmt) | ||
64 | #define s3c_pm_debug_init() do { } while (0) | ||
65 | |||
66 | static inline void s3c_pm_save_uarts(void) { } | ||
67 | static inline void s3c_pm_restore_uarts(void) { } | ||
68 | #endif | ||
69 | |||
70 | #endif | ||
diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h index 21758c67bcc0..2e04396eb3f3 100644 --- a/arch/arm/plat-samsung/include/plat/pm.h +++ b/arch/arm/plat-samsung/include/plat/pm.h | |||
@@ -16,6 +16,7 @@ | |||
16 | */ | 16 | */ |
17 | 17 | ||
18 | #include <linux/irq.h> | 18 | #include <linux/irq.h> |
19 | #include <plat/pm-common.h> | ||
19 | 20 | ||
20 | struct device; | 21 | struct device; |
21 | 22 | ||
@@ -76,26 +77,6 @@ struct sleep_save { | |||
76 | #define SAVE_ITEM(x) \ | 77 | #define SAVE_ITEM(x) \ |
77 | { .reg = (x) } | 78 | { .reg = (x) } |
78 | 79 | ||
79 | /** | ||
80 | * struct pm_uart_save - save block for core UART | ||
81 | * @ulcon: Save value for S3C2410_ULCON | ||
82 | * @ucon: Save value for S3C2410_UCON | ||
83 | * @ufcon: Save value for S3C2410_UFCON | ||
84 | * @umcon: Save value for S3C2410_UMCON | ||
85 | * @ubrdiv: Save value for S3C2410_UBRDIV | ||
86 | * | ||
87 | * Save block for UART registers to be held over sleep and restored if they | ||
88 | * are needed (say by debug). | ||
89 | */ | ||
90 | struct pm_uart_save { | ||
91 | u32 ulcon; | ||
92 | u32 ucon; | ||
93 | u32 ufcon; | ||
94 | u32 umcon; | ||
95 | u32 ubrdiv; | ||
96 | u32 udivslot; | ||
97 | }; | ||
98 | |||
99 | /* helper functions to save/restore lists of registers. */ | 80 | /* helper functions to save/restore lists of registers. */ |
100 | 81 | ||
101 | extern void s3c_pm_do_save(struct sleep_save *ptr, int count); | 82 | extern void s3c_pm_do_save(struct sleep_save *ptr, int count); |
@@ -112,24 +93,6 @@ extern void s3c_cpu_resume(void); | |||
112 | #define s3c_cpu_resume NULL | 93 | #define s3c_cpu_resume NULL |
113 | #endif | 94 | #endif |
114 | 95 | ||
115 | /* PM debug functions */ | ||
116 | |||
117 | #ifdef CONFIG_SAMSUNG_PM_DEBUG | ||
118 | /** | ||
119 | * s3c_pm_dbg() - low level debug function for use in suspend/resume. | ||
120 | * @msg: The message to print. | ||
121 | * | ||
122 | * This function is used mainly to debug the resume process before the system | ||
123 | * can rely on printk/console output. It uses the low-level debugging output | ||
124 | * routine printascii() to do its work. | ||
125 | */ | ||
126 | extern void s3c_pm_dbg(const char *msg, ...); | ||
127 | |||
128 | #define S3C_PMDBG(fmt...) s3c_pm_dbg(fmt) | ||
129 | #else | ||
130 | #define S3C_PMDBG(fmt...) printk(KERN_DEBUG fmt) | ||
131 | #endif | ||
132 | |||
133 | #ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK | 96 | #ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK |
134 | /** | 97 | /** |
135 | * s3c_pm_debug_smdkled() - Debug PM suspend/resume via SMDK Board LEDs | 98 | * s3c_pm_debug_smdkled() - Debug PM suspend/resume via SMDK Board LEDs |