diff options
| author | Tero Kristo <tero.kristo@nokia.com> | 2008-10-29 13:31:24 +0200 |
|---|---|---|
| committer | Kevin Hilman <khilman@deeprootsystems.com> | 2009-09-02 15:08:25 -0700 |
| commit | 2811d6b3237c9b77007a6b2b10ee5b576da0574e (patch) | |
| tree | 84febe1c3cdd2ece0b1f097d64cf9c597b1c833a /arch/arm/mach-omap2/pm.h | |
| parent | 6199ab2690ca6f44f838603da079b3faa837e502 (diff) | |
OMAP: PM debug: Add PRCM register dump support
Allows dumping out current register contents from the debug filesystem, and
also allows user to add arbitrary register save points into code. Current
register contents are available under debugfs at:
[debugfs]/pm_debug/registers/current
To add a save point, do following:
From module init (or somewhere before the save call, called only once):
pm_dbg_init_regset(n); // n=1..4, allocates memory for dump area #n
From arbitrary code location:
pm_dbg_regset_save(n); // n=1..4, saves registers to dump area #n
After this, the register dump can be seen under [debugfs]/pm_debug/registers/n
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
Diffstat (limited to 'arch/arm/mach-omap2/pm.h')
| -rw-r--r-- | arch/arm/mach-omap2/pm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h index 4589db1c8af8..8fa856770188 100644 --- a/arch/arm/mach-omap2/pm.h +++ b/arch/arm/mach-omap2/pm.h @@ -17,10 +17,14 @@ extern void omap2_pm_dump(int mode, int resume, unsigned int us); extern int omap2_pm_debug; extern void pm_dbg_update_time(struct powerdomain *pwrdm, int prev); +extern int pm_dbg_regset_save(int reg_set); +extern int pm_dbg_regset_init(int reg_set); #else #define omap2_pm_dump(mode, resume, us) do {} while (0); #define omap2_pm_debug 0 #define pm_dbg_update_time(pwrdm, prev) do {} while (0); +#define pm_dbg_regset_save(reg_set) do {} while (0); +#define pm_dbg_regset_init(reg_set) do {} while (0); #endif /* CONFIG_PM_DEBUG */ extern void omap24xx_idle_loop_suspend(void); |