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gpio: dwapb: Use generic request, free and set_config

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This way GPIO will be denied on pins already claimed by other devices
and basic pin configuration (pull-up, pull-down etc.) can be done
through the userspace GPIO API.

Signed-off-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Emil Renner Berthing 2023-12-29 14:07:51 +01:00 committed by Bartosz Golaszewski
parent 513246a34b
commit f34fd6ee1b
1 changed files with 9 additions and 4 deletions
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13
drivers/gpio/gpio-dwapb.c
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@ -416,11 +416,12 @@ static int dwapb_gpio_set_config(struct gpio_chip *gc, unsigned offset,
{
u32 debounce;
if (pinconf_to_config_param(config) != PIN_CONFIG_INPUT_DEBOUNCE)
return -ENOTSUPP;
if (pinconf_to_config_param(config) == PIN_CONFIG_INPUT_DEBOUNCE) {
debounce = pinconf_to_config_argument(config);
return dwapb_gpio_set_debounce(gc, offset, debounce);
}
debounce = pinconf_to_config_argument(config);
return dwapb_gpio_set_debounce(gc, offset, debounce);
return gpiochip_generic_config(gc, offset, config);
}
static int dwapb_convert_irqs(struct dwapb_gpio_port_irqchip *pirq,
@ -530,10 +531,14 @@ static int dwapb_gpio_add_port(struct dwapb_gpio *gpio,
port->gc.fwnode = pp->fwnode;
port->gc.ngpio = pp->ngpio;
port->gc.base = pp->gpio_base;
port->gc.request = gpiochip_generic_request;
port->gc.free = gpiochip_generic_free;
/* Only port A support debounce */
if (pp->idx == 0)
port->gc.set_config = dwapb_gpio_set_config;
else
port->gc.set_config = gpiochip_generic_config;
/* Only port A can provide interrupts in all configurations of the IP */
if (pp->idx == 0)