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| author | Rick Altherr <raltherr@google.com> | 2017-05-22 14:12:23 -0700 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-06-01 12:55:49 +0800 |
| commit | b14c53451719dc6ec8e6387e5be3be23294a6f1d (patch) | |
| tree | c277c56b6d3400ab719f2c0f24f597043d55d71a /Documentation | |
| parent | 2a9faf8b7e4350967ed7b59e39522972b9ead0c9 (diff) | |
dt-bindings: timeriomem_rng: Add entropy quality property
Signed-off-by: Rick Altherr <raltherr@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/rng/timeriomem_rng.txt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/rng/timeriomem_rng.txt b/Documentation/devicetree/bindings/rng/timeriomem_rng.txt index 6616d15866a3..214940093b55 100644 --- a/Documentation/devicetree/bindings/rng/timeriomem_rng.txt +++ b/Documentation/devicetree/bindings/rng/timeriomem_rng.txt @@ -5,6 +5,13 @@ Required properties: - reg : base address to sample from - period : wait time in microseconds to use between samples +Optional properties: +- quality : estimated number of bits of true entropy per 1024 bits read from the + rng. Defaults to zero which causes the kernel's default quality to + be used instead. Note that the default quality is usually zero + which disables using this rng to automatically fill the kernel's + entropy pool. + N.B. currently 'reg' must be four bytes wide and aligned Example: |