| Date | Mon, 12 Apr 2021 18:21:14 +0200 | From | Uwe Kleine-König <> | Subject | Re: [PATCH v8 2/8] pwm: pca9685: Support hardware readout |
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Hello Clemens,
On Mon, Apr 12, 2021 at 03:27:39PM +0200, Clemens Gruber wrote: > Implement .get_state to read-out the current hardware state. > > The hardware readout may return slightly different values than those > that were set in apply due to the limited range of possible prescale and > counter register values. > > Also note that although the datasheet mentions 200 Hz as default > frequency when using the internal 25 MHz oscillator, the calculated > period from the default prescaler register setting of 30 is 5079040ns. > > Signed-off-by: Clemens Gruber <clemens.gruber@pqgruber.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Best regards Uwe
-- Pengutronix e.K. | Uwe Kleine-König | Industrial Linux Solutions | https://www.pengutronix.de/ | [unhandled content-type:application/pgp-signature] |