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authorEmil Renner Berthing2023-12-29 14:07:51 +0100
committerBartosz Golaszewski2024-01-02 14:16:17 +0100
commitf34fd6ee1be84c6e64574e9eb58f89d32c7f98a4 (patch)
tree88890baa7189381d061f52b8c58140eb57748b89 /drivers
parent513246a34b8dc5d5280a40c1cbef112594220ba6 (diff)
gpio: dwapb: Use generic request, free and set_config
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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpio/gpio-dwapb.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 8c59332429c2..798235791f70 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -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)