Commit 5238f60f authored by William Breathitt Gray's avatar William Breathitt Gray Committed by Linus Walleij
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gpio: ws16c48: 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 WinSystems WS16C48.
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>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
parent 210b4bde

drivers/gpio/gpio-ws16c48.c

+18 −1
Original line number Diff line number Diff line
@@ -341,6 +341,22 @@ static irqreturn_t ws16c48_irq_handler(int irq, void *dev_id) 
	return IRQ_HANDLED;

}



#define WS16C48_NGPIO 48

static const char *ws16c48_names[WS16C48_NGPIO] = {

	"Port 0 Bit 0", "Port 0 Bit 1", "Port 0 Bit 2", "Port 0 Bit 3",

	"Port 0 Bit 4", "Port 0 Bit 5", "Port 0 Bit 6", "Port 0 Bit 7",

	"Port 1 Bit 0", "Port 1 Bit 1", "Port 1 Bit 2", "Port 1 Bit 3",

	"Port 1 Bit 4", "Port 1 Bit 5", "Port 1 Bit 6", "Port 1 Bit 7",

	"Port 2 Bit 0", "Port 2 Bit 1", "Port 2 Bit 2", "Port 2 Bit 3",

	"Port 2 Bit 4", "Port 2 Bit 5", "Port 2 Bit 6", "Port 2 Bit 7",

	"Port 3 Bit 0", "Port 3 Bit 1", "Port 3 Bit 2", "Port 3 Bit 3",

	"Port 3 Bit 4", "Port 3 Bit 5", "Port 3 Bit 6", "Port 3 Bit 7",

	"Port 4 Bit 0", "Port 4 Bit 1", "Port 4 Bit 2", "Port 4 Bit 3",

	"Port 4 Bit 4", "Port 4 Bit 5", "Port 4 Bit 6", "Port 4 Bit 7",

	"Port 5 Bit 0", "Port 5 Bit 1", "Port 5 Bit 2", "Port 5 Bit 3",

	"Port 5 Bit 4", "Port 5 Bit 5", "Port 5 Bit 6", "Port 5 Bit 7"

};



static int ws16c48_probe(struct device *dev, unsigned int id)

{

	struct ws16c48_gpio *ws16c48gpio;
@@ -361,7 +377,8 @@ static int ws16c48_probe(struct device *dev, unsigned int id) 
	ws16c48gpio->chip.parent = dev;

	ws16c48gpio->chip.owner = THIS_MODULE;

	ws16c48gpio->chip.base = -1;

	ws16c48gpio->chip.ngpio = 48;

	ws16c48gpio->chip.ngpio = WS16C48_NGPIO;

	ws16c48gpio->chip.names = ws16c48_names;

	ws16c48gpio->chip.get_direction = ws16c48_gpio_get_direction;

	ws16c48gpio->chip.direction_input = ws16c48_gpio_direction_input;

	ws16c48gpio->chip.direction_output = ws16c48_gpio_direction_output;

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