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| author |   Chen-Yu Tsai <wens@csie.org> | 2017-12-08 16:35:12 +0800 |
|---|---|---|
| committer |   Maxime Ripard <maxime.ripard@free-electrons.com> | 2017-12-08 10:08:32 +0100 |
| commit | e952ca3c6b2ffdfbf9618e4bd3e9aad1ff3f5eb4 (patch) | |
| tree | 63c022815ebc73f810ae2b1a0edbab8ef1fd711d /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | clk: sunxi-ng: sun8i: a83t: Add /2 fixed post divider to audio PLL (diff) | |
| download | linux-dev-e952ca3c6b2ffdfbf9618e4bd3e9aad1ff3f5eb4.tar.xz linux-dev-e952ca3c6b2ffdfbf9618e4bd3e9aad1ff3f5eb4.zip | |
clk: sunxi-ng: sun8i: a83t: Use sigma-delta modulation for audio PLL
The audio blocks require specific clock rates. Until now we were using
the closest clock rate possible with integer N-M factors. This resulted
in audio playback being slightly slower than it should be.
The vendor kernel gets around this (for newer SoCs) by using sigma-delta
modulation to generate a fractional-N factor. This patch copies the
parameters for the A83T.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions