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drivers: gpio: move non-standard dts flags to be soc specific

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Reserve the upper 8 bits of gpio_dt_flags_t for SoC specific flags and
move the non-standard, hardware-specific GPIO devicetree flags (IO
voltage level, drive strength, debounce filter) from the generic
dt-bindings/gpio/gpio.h header to SoC specific dt-bindings headers.

Some of the SoC specific dt-bindings flags take up more bits than
necessary in order to retain backwards compatibility with the deprecated
GPIO flags. The width of these fields can be reduced/optimized once the
deprecated flags are removed.

Remove hardcoded use of GPIO_INT_DEBOUNCE in GPIO client drivers. This
flag can now be set in the devicetree for boards/SoCs with debounce
filter support. The SoC specific debounce flags have had the _INT part
of their name removed since these flag must be passed to
gpio_pin_configure(), not gpio_pin_interrupt_configure().

Signed-off-by: Henrik Brix Andersen <hebad@vestas.com>
This commit is contained in:
Henrik Brix Andersen 2021-10-27 14:52:31 +02:00 • committed by Anas Nashif
commit d4023b3c1b
34 changed files with 416 additions and 211 deletions
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3
drivers/gpio/gpio_andes_atcgpio100.c
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@ -14,6 +14,7 @@
#include <device.h>
#include <soc.h>
#include <drivers/gpio.h>
#include <dt-bindings/gpio/andestech-atcgpio100.h>
#include <sys/util.h>
#include <sys/sys_io.h>
@ -140,7 +141,7 @@ static int gpio_atcgpio100_config(const struct device *port,
key = k_spin_lock(&data->lock);
/* Set de-bounce */
if (flags & GPIO_INT_DEBOUNCE) {
if (flags & ATCGPIO100_GPIO_DEBOUNCE) {
/* Default settings: Filter out pulses which are
* less than 4 de-bounce clock period
*/