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Mika Westerberg authored
The PCA9685 controller has full on/off bit for each PWM channel. Setting this bit bypasses the PWM control and the line works just as it would be a GPIO. Furthermore in Intel Galileo it is actually used as GPIO output for discreet muxes on the board. This patch adds GPIO output only support for the driver so that we can control the muxes on Galileo using standard GPIO interfaces available in the kernel. GPIO and PWM functionality is exclusive so only one can be active at a time on a single PWM channel. Signed-off-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Acked-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
Thierry Reding <thierry.reding@gmail.com>
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