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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2022-05-17 17:05:55 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2022-05-20 16:36:07 +0200 |
| commit | 80a22fde803af6f390be49ee5ced6ee75595ba05 (patch) | |
| tree | f3e43e450f04d9876b4eea558aa547f334096c8c /drivers/cxl | |
| parent | a1bbf823e5e9178ec2f70dd52345fd1a57efe145 (diff) | |
pwm: Document that the pinstate of a disabled PWM isn't reliable
Some (most?) drivers emit the inactive state when the PWM is disabled.
However there are exceptions, so document that a consumer better doesn't
depend on this behaviour.
Some known exceptions:
- imx27 emits 0 independent of the configured polarity
- mxs just drives the output to the last emitted state.
- iqs620a makes the output tristated on disable, so an external
pull-down would be required.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/cxl')
0 files changed, 0 insertions, 0 deletions