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3 Commits

Author SHA1 Message Date
Uwe Kleine-König
9c3fac7aaf pwm: ntxec: 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 21:38:46 +02:00
Uwe Kleine-König
97966ade66 pwm: ntxec: Drop useless assignment to struct pwmchip::base 
Since commit f9a8ee8c8b ("pwm: Always allocate PWM chip base ID
dynamically") there is no effect any more for assigning this variable.
When the patch resulting in f9a8ee8c8b was created, this driver didn't
exist yet, so this was missed.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
 2021-09-02 21:38:39 +02:00
Jonathan Neuschäfer
9fc0486f94 pwm: ntxec: Add driver for PWM function in Netronix EC 
The Netronix EC provides a PWM output which is used for the backlight
on some ebook readers. This patches adds a driver for the PWM output.

The .get_state callback is not implemented, because the PWM state can't
be read back from the hardware.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-03-10 11:06:30 +00:00