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SubjectRe: [PATCH] clk: debug clock tree
On 12/13/2012 09:27 AM, Mike Turquette wrote:
> On Wed, Dec 12, 2012 at 7:49 PM, Prashant Gaikwad <pgaikwad@nvidia.com> wrote:
>> Adds debug file "clock_tree" in /sys/kernel/debug/clk dir.
>> It helps to view all the clock registered in tree format.
>>
>
> Prashant,
>
> Thanks for submitting this. We've been talking about having a single
> file for representing the tree for some time.
>
> Regarding the output format had you considered using a well known
> format which can be parsed using well known parsing libs? This avoids
> needing a custom parser just for this one file. JSON springs to mind
> as something lightweight and well-understood.

One advantage of the format below is that it's very easily
human-readable, and it's not too hard to parse (although I guess you'd
have to parse the indent level to get parent/child relation, which would
suck a bit). Is there room to provide both? Otherwise, I guess the
kernel could include a script to convert from JSON/whatever into the
format below.

>> For example:
>> clock enable_cnt prepare_cnt rate
>> ---------------------------------------------------------------------
>> i2s0_sync 0 0 24000000
>> spdif_in_sync 0 0 24000000
>> spdif_mux 0 0 24000000
>> spdif 0 0 24000000
>> spdif_doubler 0 0 48000000
>> spdif_div 0 0 48000000
>> spdif_2x 0 0 48000000




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