diff options
| author | Hiroshi DOYU <Hiroshi.DOYU@nokia.com> | 2008-07-03 12:24:41 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2008-07-03 12:24:41 +0300 |
| commit | 137b3ee27ab1b27dba081542476054836978ca45 (patch) | |
| tree | 53857cbfa413b112a1fc60d364e9f1d3b2e8591f /include/asm-arm | |
| parent | 44f78f43b349d19d378a996c4a2d9fcdff771b1e (diff) | |
| download | linux-137b3ee27ab1b27dba081542476054836978ca45.tar.bz2 | |
ARM: OMAP: CLKFW: Initial debugfs support for omap clock framework
debugfs can provide the infrastructure to trace the dependencies of
clock tree hierarchy quite visibly. This patch enables to keep track
of clock tree hierarchy and expose their attributes under each clock
directry as below:
omap:~# tree -d -L 2 /debug/clock/omap_32k_fck/
/debug/clock/omap_32k_fck/
|-- gpt10_fck
|-- gpt11_fck
|-- gpt1_fck
|-- per_32k_alwon_fck
| |-- gpio2_fck
| |-- gpio3_fck
| |-- gpio4_fck
| |-- gpio5_fck
| |-- gpio6_fck
| `-- wdt3_fck
|-- ts_fck
`-- wkup_32k_fck
|-- gpio1_fck
`-- wdt2_fck
14 directories
omap:~# tree /debug/clock/omap_32k_fck/gpt10_fck/
/debug/clock/omap_32k_fck/gpt10_fck/
|-- flags
|-- rate
`-- usecount
0 directories, 3 files
Although, compared with David Brownell's small patch, this may look
bit overkilling, I expect that this debugfs can deal with other PRCM
complexities at the same time. For example, powerdomain dependencies
can be expressed by using symbolic links of these clocks if
powerdomain supports dubgfs as well.
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/arch-omap/clock.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-arm/arch-omap/clock.h b/include/asm-arm/arch-omap/clock.h index 12a5e4de9518..8490fbba39d1 100644 --- a/include/asm-arm/arch-omap/clock.h +++ b/include/asm-arm/arch-omap/clock.h @@ -71,6 +71,9 @@ struct clk { __u8 rate_offset; __u8 src_offset; #endif +#if defined(CONFIG_PM_DEBUG) && defined(CONFIG_DEBUG_FS) + struct dentry *dent; /* For visible tree hierarchy */ +#endif }; struct cpufreq_frequency_table; |