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* pru: Add wrappers for gpio_x_reset()Kevin O'Connor2018-08-271-0/+12
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* stepper: Introduce and use gpio_out_toggle_noirq()Kevin O'Connor2018-05-151-1/+7
| | | | | | | | | | | | | | | The gpio_out_toggle() function in the sam3x8e and stm32f1 code was only valid if it was called with irqs disabled. Commits 018c5daa and 9c52ad43 enabled the lcd code which called gpio_out_toggle() with irqs enabled. This could cause corruption of the gpio state. Introduce a gpio_out_toggle_noirq() function that will only be invoked with irqs disabled, and fix gpio_out_toggle() on sam3x8e and stm32f1 so that it safe to call even if irqs are enabled. Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* pru: Move ADC code from gpio.c to new file adc.cKevin O'Connor2017-07-121-66/+0
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* pru: Add support for ADC inputKevin O'Connor2017-05-171-0/+67
| | | | Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
* pru: Initial support for the Beaglebone PRUKevin O'Connor2017-05-151-0/+142
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
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