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author | Neil Armstrong | 2020-10-01 10:04:56 +0200 |
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committer | Neil Armstrong | 2020-10-05 18:02:16 +0200 |
commit | 2d481b2e3e22f7be854d381a7bafd92a65e18b23 (patch) | |
tree | 50cd6ab4c006a6b1a238fdc79f235a6191f1e6d0 /include/dt-bindings | |
parent | 38c1c6f8163334521def945a379e7fca231f4b62 (diff) |
pwm: Add driver for Amlogic Meson PWM controller
This adds the driver for the PWM controller found in the Amlogic SoCs.
This PWM is only a set of Gates, Dividers and Counters:
PWM output is achieved by calculating a clock that permits calculating
two periods (low and high). The counter then has to be set to switch after
N cycles for the first half period.
The hardware has no "polarity" setting. This driver reverses the period
cycles (the low length is inverted with the high length) for
PWM_POLARITY_INVERSED.
Disabling the PWM stops the output immediately (without waiting for the
current period to complete first).
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Diffstat (limited to 'include/dt-bindings')
0 files changed, 0 insertions, 0 deletions