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| author | Sean Wang <sean.wang@mediatek.com> | 2018-03-02 11:49:14 +0300 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2018-03-28 01:32:25 +0300 |
| commit | 04c0a4e00dc11fedc0b0a8593adcf0f4310505d4 (patch) | |
| tree | bf566c148ad879acf186107da631130d6ae8980d /drivers/pwm/pwm-stm32.c | |
| parent | f3617876364c0471b4779a0d05539f210693e45f (diff) | |
| download | linux-04c0a4e00dc11fedc0b0a8593adcf0f4310505d4.tar.xz | |
pwm: mediatek: Improve precision in rate calculation
Add a way that turning resolution from in nanosecond into in picosecond
to improve noticeably almost 4.5% precision.
It's necessary to hold the new resolution with type u64 and thus related
operations on u64 are applied instead in those rate calculations.
And the patch has a dependency on [1].
[1] http://lists.infradead.org/pipermail/linux-mediatek/2018-March/012225.html
Cc: stable@vger.kernel.org
Fixes: caf065f8fd58 ("pwm: Add MediaTek PWM support")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm/pwm-stm32.c')
0 files changed, 0 insertions, 0 deletions