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| author | Mike Turquette <mturquette@linaro.org> | 2014-09-30 14:24:38 -0700 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2014-09-30 14:33:02 -0700 |
| commit | e156ee56cbe26c9e8df6619dac1a993245afc1d5 (patch) | |
| tree | 6fedeffc6e6ba807388d5135affd0b2f649359b0 /Documentation | |
| parent | 38bf3a79785f50ecad01e0ea60bf779507032984 (diff) | |
| download | linux-e156ee56cbe26c9e8df6619dac1a993245afc1d5.tar.gz linux-e156ee56cbe26c9e8df6619dac1a993245afc1d5.tar.bz2 linux-e156ee56cbe26c9e8df6619dac1a993245afc1d5.zip | |
doc/kernel-parameters.txt: clarify clk_ignore_unused
Refine the definition around clk_ignore_unused, which caused some
confusion recently on the linux-fbdev and linux-arm-kernel mailing
lists[0].
[0] http://lkml.kernel.org/r/<20140929135358.GC30998@ulmo>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/kernel-parameters.txt | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 10d51c2f10d7..0ce01fb286c4 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -605,11 +605,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. See Documentation/s390/CommonIO for details. clk_ignore_unused [CLK] - Keep all clocks already enabled by bootloader on, - even if no driver has claimed them. This is useful - for debug and development, but should not be - needed on a platform with proper driver support. - For more information, see Documentation/clk.txt. + Prevents the clock framework from automatically gating + clocks that have not been explicitly enabled by a Linux + device driver but are enabled in hardware at reset or + by the bootloader/firmware. Note that this does not + force such clocks to be always-on nor does it reserve + those clocks in any way. This parameter is useful for + debug and development, but should not be needed on a + platform with proper driver support. For more + information, see Documentation/clk.txt. clock= [BUGS=X86-32, HW] gettimeofday clocksource override. [Deprecated] |