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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2019-04-10 18:39:20 +0300
committerLinus Walleij <linus.walleij@linaro.org>2019-04-23 10:55:24 +0200
commit606be34440ee3e6da3799691fcab7b69e1ad06cd (patch)
treeb6d49e75481ffa148237bb1c23f3f1e28ff51d8f /drivers/gpio
parent24a49543336dbaecb83862a17f6a05d53ec2592f (diff)
downloadlinux-606be34440ee3e6da3799691fcab7b69e1ad06cd.tar.bz2
gpiolib: acpi: Add acpi_gpio_update_gpiod_lookup_flags() helper
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@linux.intel.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpiolib-acpi.c13
-rw-r--r--drivers/gpio/gpiolib.c4
-rw-r--r--drivers/gpio/gpiolib.h8
3 files changed, 19 insertions, 6 deletions
diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 878c7a7dea8b..9c6ebaaa02fe 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(unsigned long *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 b8e4c9cd7b9e..bfbe5d7af372 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -4350,9 +4350,7 @@ 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 5dbfce616ae1..e1636e152a6c 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -125,6 +125,8 @@ 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(unsigned long *lookupflags,
+ struct acpi_gpio_info *info);
struct gpio_desc *acpi_find_gpio(struct device *dev,
const char *con_id,
@@ -153,6 +155,12 @@ 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(unsigned long *lookupflags,
+ struct acpi_gpio_info *info)
+{
+ return 0;
+}
static inline struct gpio_desc *
acpi_find_gpio(struct device *dev, const char *con_id,