[PATCH v1 6/7] gpiolib: acpi: Add acpi_gpio_update_gpiod_lookup_flags() helper

[Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>]

This helper consolidates all settings of GPIO descriptor lookup flags and
quirks in the future if any.

No functional change intended.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
 drivers/gpio/gpiolib-acpi.c | 13 ++++++++++---
 drivers/gpio/gpiolib.c      |  4 +---
 drivers/gpio/gpiolib.h      |  8 ++++++++
 3 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 471f6c1f34d1..a125e087689b 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -525,6 +525,15 @@ acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, struct acpi_gpio_info *inf
 	return ret;
 }
 
+int acpi_gpio_update_gpiod_lookup_flags(enum gpio_lookup_flags *lookupflags,
+					struct acpi_gpio_info *info)
+{
+	if (info->polarity == GPIO_ACTIVE_LOW)
+		*lookupflags |= GPIO_ACTIVE_LOW;
+
+	return 0;
+}
+
 struct acpi_gpio_lookup {
 	struct acpi_gpio_info info;
 	int index;
@@ -745,10 +754,8 @@ struct gpio_desc *acpi_find_gpio(struct device *dev,
 		return ERR_PTR(-ENOENT);
 	}
 
-	if (info.polarity == GPIO_ACTIVE_LOW)
-		*lookupflags |= GPIO_ACTIVE_LOW;
-
 	acpi_gpio_update_gpiod_flags(dflags, &info);
+	acpi_gpio_update_gpiod_lookup_flags(lookupflags, &info);
 	return desc;
 }
 
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index ea0d38164b06..439559200d1e 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -4339,9 +4339,7 @@ struct gpio_desc *fwnode_get_named_gpiod(struct fwnode_handle *fwnode,
 			return desc;
 
 		acpi_gpio_update_gpiod_flags(&dflags, &info);
-
-		if (info.polarity == GPIO_ACTIVE_LOW)
-			lflags |= GPIO_ACTIVE_LOW;
+		acpi_gpio_update_gpiod_lookup_flags(&lflags, &info);
 	}
 
 	/* Currently only ACPI takes this path */
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 81061e5f9b22..3f95b423e590 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -126,6 +126,8 @@ void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
 
 int acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags,
 				 struct acpi_gpio_info *info);
+int acpi_gpio_update_gpiod_lookup_flags(enum gpio_lookup_flags *lookupflags,
+					struct acpi_gpio_info *info);
 
 struct gpio_desc *acpi_find_gpio(struct device *dev,
 				 const char *con_id,
@@ -154,6 +156,12 @@ acpi_gpio_update_gpiod_flags(enum gpiod_flags *flags, struct acpi_gpio_info *inf
 {
 	return 0;
 }
+static inline int
+acpi_gpio_update_gpiod_lookup_flags(enum gpio_lookup_flags *lookupflags,
+				    struct acpi_gpio_info *info)
+{
+	return 0;
+}
 
 static inline struct gpio_desc *
 acpi_find_gpio(struct device *dev, const char *con_id,
-- 
2.20.1