pwm: sun4i: Add support to output source clock directly

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PWM core has an option to bypass whole logic and output unchanged source
clock as PWM output. This is achieved by enabling bypass bit.

Note that when bypass is enabled, no other setting has any meaning, not
even enable bit.

This mode of operation is needed to achieve high enough frequency to
serve as clock source for AC200 chip which is integrated into same
package as H6 SoC.

Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net>
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

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Jernej Skrabec 2019-11-24 18:29:07 +01:00 • committed by Thierry Reding

parent fa4d817846

commit 9f28e95b52

1 changed files with 46 additions and 2 deletions

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48

drivers/pwm/pwm-sun4i.c

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