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Commit 7d816e54 authored by William Breathitt Gray's avatar William Breathitt Gray Committed by Jonathan Cameron
Browse files

iio: stx104: Add support for GPIO names 



This patch sets the gpio_chip names option with an array of GPIO line
names that match the manual documentation for the Apex Embedded Systems
STX104. This should make it easier for users to identify which GPIO line
corresponds to a respective GPIO pin on the device.

Signed-off-by: default avatarWilliam Breathitt Gray <vilhelm.gray@gmail.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 87ac0c24

drivers/iio/adc/stx104.c

+7 −1
Original line number Diff line number Diff line
@@ -256,6 +256,11 @@ static void stx104_gpio_set(struct gpio_chip *chip, unsigned int offset, 
	spin_unlock_irqrestore(&stx104gpio->lock, flags);

}



#define STX104_NGPIO 8

static const char *stx104_names[STX104_NGPIO] = {

	"DIN0", "DIN1", "DIN2", "DIN3", "DOUT0", "DOUT1", "DOUT2", "DOUT3"

};



static int stx104_probe(struct device *dev, unsigned int id)

{

	struct iio_dev *indio_dev;
@@ -309,7 +314,8 @@ static int stx104_probe(struct device *dev, unsigned int id) 
	stx104gpio->chip.parent = dev;

	stx104gpio->chip.owner = THIS_MODULE;

	stx104gpio->chip.base = -1;

	stx104gpio->chip.ngpio = 8;

	stx104gpio->chip.ngpio = STX104_NGPIO;

	stx104gpio->chip.names = stx104_names;

	stx104gpio->chip.get_direction = stx104_gpio_get_direction;

	stx104gpio->chip.direction_input = stx104_gpio_direction_input;

	stx104gpio->chip.direction_output = stx104_gpio_direction_output;