gpio: pass lookup and descriptor flags to request_own

When a gpio_chip wants to request a descriptor from itself
using gpiochip_request_own_desc() it needs to be able to specify
fully how to use the descriptor, notably line inversion
semantics. The workaround in the gpiolib.c can be removed
and cases (such as SPI CS) where we need at times to request
a GPIO with line inversion semantics directly on a chip for
workarounds, can be fully supported with this call.

Fix up some users of the API that weren't really using the
last flag to set up the line as input or output properly
but instead just calling direction setting explicitly
after requesting the line.

Cc: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index c9fc9e232aaf..39f2f9035c11 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -217,14 +217,13 @@ 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", 0);
+	desc = gpiochip_request_own_desc(chip, pin, "ACPI:Event",
+					 GPIO_ACTIVE_HIGH, GPIOD_IN);
 	if (IS_ERR(desc)) {
 		dev_err(chip->parent, "Failed to request GPIO\n");
 		return AE_ERROR;
 	}
 
-	gpiod_direction_input(desc);
-
 	ret = gpiochip_lock_as_irq(chip, pin);
 	if (ret) {
 		dev_err(chip->parent, "Failed to lock GPIO as interrupt\n");
@@ -951,6 +950,7 @@ acpi_gpio_adr_space_handler(u32 function, acpi_physical_address address,
 			const char *label = "ACPI:OpRegion";
 
 			desc = gpiochip_request_own_desc(chip, pin, label,
+							 GPIO_ACTIVE_HIGH,
 							 flags);
 			if (IS_ERR(desc)) {
 				status = AE_ERROR;