pwm: Add PWM driver for OMAP using dual-mode timers

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Adds support for using a OMAP dual-mode timer with PWM capability
as a Linux PWM device. The driver controls the timer by using the
dmtimer API.

Add a platform_data structure for each pwm-omap-dmtimer nodes containing
the dmtimers functions in order to get driver not rely on platform
specific functions.

Cc: Grant Erickson <marathon96@gmail.com>
Cc: NeilBrown <neilb@suse.de>
Cc: Joachim Eastwood <manabian@gmail.com>
Suggested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Tony Lindgren <tony@atomide.com>
[thierry.reding@gmail.com: coding style bikeshed, fix timer leak]
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

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Neil Armstrong 2015-11-02 12:14:21 +01:00 • committed by Thierry Reding

parent 72c16a9f98

commit 6604c6556d

5 changed files with 424 additions and 0 deletions

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18

Documentation/devicetree/bindings/pwm/pwm-omap-dmtimer.txt

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9

drivers/pwm/Kconfig

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1

drivers/pwm/Makefile

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327

drivers/pwm/pwm-omap-dmtimer.c

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69

include/linux/platform_data/pwm_omap_dmtimer.h

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