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2 Commits

Author SHA1 Message Date
Uwe Kleine-König b7783c6258 pwm: raspberrypi-poe: Simplify using devm_pwmchip_add() 
This allows to drop the platform_driver's remove function. This is the
only user of driver data so this can go away, too.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2021-09-02 21:38:47 +02:00
Nicolas Saenz Julienne 79caa362ea pwm: Add Raspberry Pi Firmware based PWM bus 
Adds support to control the PWM bus available in official Raspberry Pi
PoE HAT. Only RPi's co-processor has access to it, so commands have to
be sent through RPi's firmware mailbox interface.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
 2021-03-22 17:59:52 +01:00