diff options
author | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-11-11 23:35:33 +0200 |
---|---|---|
committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2020-11-16 14:14:35 +0200 |
commit | 2e2b496cebefb9514fc04adcb4658df4f82ceb0d (patch) | |
tree | b718b55a1a5b3a1eb41e57fc6b6c947928a69b95 /drivers | |
parent | bca404802ceade19d7649a840178c415316814cc (diff) |
gpiolib: acpi: Extract acpi_request_own_gpiod() helper
It appears that we are using similar code excerpts for ACPI OpRegion
and event handling. Deduplicate those excerpts by extracting a new
acpi_request_own_gpiod() helper.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpio/gpiolib-acpi.c | 46 |
1 files changed, 24 insertions, 22 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index 644067cc0f81..c46fd51007d0 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -244,6 +244,28 @@ acpi_gpio_to_gpiod_flags(const struct acpi_resource_gpio *agpio, int polarity) return GPIOD_ASIS; } +static struct gpio_desc *acpi_request_own_gpiod(struct gpio_chip *chip, + struct acpi_resource_gpio *agpio, + unsigned int index, + const char *label) +{ + int polarity = GPIO_ACTIVE_HIGH; + enum gpiod_flags flags = acpi_gpio_to_gpiod_flags(agpio, polarity); + unsigned int pin = agpio->pin_table[index]; + struct gpio_desc *desc; + int ret; + + desc = gpiochip_request_own_desc(chip, pin, label, polarity, flags); + if (IS_ERR(desc)) + return desc; + + ret = gpio_set_debounce_timeout(desc, agpio->debounce_timeout); + if (ret) + gpiochip_free_own_desc(desc); + + return ret ? ERR_PTR(ret) : desc; +} + static bool acpi_gpio_in_ignore_list(const char *controller_in, int pin_in) { const char *controller, *pin_str; @@ -329,8 +351,7 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, if (!handler) return AE_OK; - desc = gpiochip_request_own_desc(chip, pin, "ACPI:Event", - GPIO_ACTIVE_HIGH, GPIOD_IN); + desc = acpi_request_own_gpiod(chip, agpio, 0, "ACPI:Event"); if (IS_ERR(desc)) { dev_err(chip->parent, "Failed to request GPIO for pin 0x%04X, err %ld\n", @@ -338,10 +359,6 @@ static acpi_status acpi_gpiochip_alloc_event(struct acpi_resource *ares, return AE_OK; } - ret = gpio_set_debounce_timeout(desc, agpio->debounce_timeout); - if (ret) - goto fail_free_desc; - ret = gpiochip_lock_as_irq(chip, pin); if (ret) { dev_err(chip->parent, @@ -1061,28 +1078,13 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address, } if (!found) { - int polarity = GPIO_ACTIVE_HIGH; - enum gpiod_flags flags = acpi_gpio_to_gpiod_flags(agpio, polarity); - const char *label = "ACPI:OpRegion"; - int ret; - - desc = gpiochip_request_own_desc(chip, pin, label, - polarity, - flags); + desc = acpi_request_own_gpiod(chip, agpio, i, "ACPI:OpRegion"); if (IS_ERR(desc)) { mutex_unlock(&achip->conn_lock); status = AE_ERROR; goto out; } - ret = gpio_set_debounce_timeout(desc, agpio->debounce_timeout); - if (ret) { - gpiochip_free_own_desc(desc); - mutex_unlock(&achip->conn_lock); - status = AE_ERROR; - goto out; - } - conn = kzalloc(sizeof(*conn), GFP_KERNEL); if (!conn) { gpiochip_free_own_desc(desc); |