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Subject[PATCH v2 2/2] of/gpio: Automatically decode OF_GPIO_OPEN_DRAIN and OF_GPIO_OPEN_SOURCE flags in gpiolib.
Date
From: David Daney <david.daney@cavium.com>

Just as gpiod_get() automatically interprets the OF_GPIO_ACTIVE_LOW
flag from the device tree, add handling for OF_GPIO_OPEN_DRAIN and
OF_GPIO_OPEN_SOURCE.

This keeps the details of handling open-drain GPIOs in the core GPIO
code, and out of the individual drivers.

Signed-off-by: David Daney <david.daney@cavium.com>
---
drivers/gpio/gpiolib.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 50c4922..7f596d0 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2307,6 +2307,12 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
if (of_flags & OF_GPIO_ACTIVE_LOW)
*flags |= GPIO_ACTIVE_LOW;

+ if (of_flags & OF_GPIO_OPEN_DRAIN)
+ *flags |= GPIO_OPEN_DRAIN;
+
+ if (of_flags & OF_GPIO_OPEN_SOURCE)
+ *flags |= GPIO_OPEN_SOURCE;
+
return desc;
}
#else
--
1.7.11.7


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