diff options
Diffstat (limited to 'drivers/platform/cznic/turris-omnia-mcu-gpio.c')
| -rw-r--r-- | drivers/platform/cznic/turris-omnia-mcu-gpio.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/drivers/platform/cznic/turris-omnia-mcu-gpio.c b/drivers/platform/cznic/turris-omnia-mcu-gpio.c index 5f35f7c5d5d7..c2df24ea8686 100644 --- a/drivers/platform/cznic/turris-omnia-mcu-gpio.c +++ b/drivers/platform/cznic/turris-omnia-mcu-gpio.c @@ -13,6 +13,7 @@ #include <linux/device.h> #include <linux/devm-helpers.h> #include <linux/errno.h> +#include <linux/gpio/consumer.h> #include <linux/gpio/driver.h> #include <linux/i2c.h> #include <linux/interrupt.h> @@ -195,7 +196,7 @@ static const struct omnia_gpio omnia_gpios[64] = { }; /* mapping from interrupts to indexes of GPIOs in the omnia_gpios array */ -const u8 omnia_int_to_gpio_idx[32] = { +static const u8 omnia_int_to_gpio_idx[32] = { [__bf_shf(OMNIA_INT_CARD_DET)] = 4, [__bf_shf(OMNIA_INT_MSATA_IND)] = 5, [__bf_shf(OMNIA_INT_USB30_OVC)] = 6, @@ -1093,3 +1094,21 @@ int omnia_mcu_register_gpiochip(struct omnia_mcu *mcu) return 0; } + +int omnia_mcu_request_irq(struct omnia_mcu *mcu, u32 spec, + irq_handler_t thread_fn, const char *devname) +{ + u8 irq_idx; + int irq; + + if (!spec) + return -EINVAL; + + irq_idx = omnia_int_to_gpio_idx[ffs(spec) - 1]; + irq = gpiod_to_irq(gpio_device_get_desc(mcu->gc.gpiodev, irq_idx)); + if (irq < 0) + return irq; + + return devm_request_threaded_irq(&mcu->client->dev, irq, NULL, + thread_fn, IRQF_ONESHOT, devname, mcu); +} |