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| author | Keguang Zhang <keguang.zhang@gmail.com> | 2026-07-15 19:05:24 +0800 |
|---|---|---|
| committer | Uwe Kleine-König <ukleinek@kernel.org> | 2026-09-07 11:25:23 +0200 |
| commit | 0de9b836a3bc1cd30578ae2c4463d09afd85ed3d (patch) | |
| tree | 471192019e236a3ee0a102324df13a68f585d85e /scripts/Makefile.thinlto | |
| parent | bdf16a4d74ae6b7fb6dc8953798ba0853ddc4705 (diff) | |
| download | linux-next-0de9b836a3bc1cd30578ae2c4463d09afd85ed3d.tar.gz linux-next-0de9b836a3bc1cd30578ae2c4463d09afd85ed3d.zip | |
pwm: loongson: Reload PWM configuration through counter reset
The Loongson PWM controller latches the LOW and PERIOD registers only at
the start of each PWM period. After disabling and re-enabling the PWM,
the controller resumes from the previous counter value and completes the
current period before re-latching the updated LOW and PERIOD values.
Reset the PWM counter when disabling the PWM and release it when
enabling the PWM so that the updated LOW and PERIOD values are latched
before the PWM starts running again.
Fixes: 2b62c89448dd ("pwm: Add Loongson PWM controller support")
Signed-off-by: Keguang Zhang <keguang.zhang@gmail.com>
Link: https://patch.msgid.link/20260715-pwm-loongson-fix-v3-2-0aab2847eaa7@gmail.com
[ukleinek: Note LOW refers to the register currently named
LOONGSON_PWM_REG_DUTY. That name is wrong, the fix is still under
discussion.]
Signed-off-by: Uwe Kleine-König <ukleinek@kernel.org>
Diffstat (limited to 'scripts/Makefile.thinlto')
0 files changed, 0 insertions, 0 deletions