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authorWilliam Breathitt Gray <vilhelm.gray@gmail.com>2017-01-30 13:33:11 -0500
committerLinus Walleij <linus.walleij@linaro.org>2017-02-01 16:03:55 +0100
commita71dc2537a1ad792d6c3dc6129c60ec28447f215 (patch)
tree6409db939cc2be2d826ca938a780916fc47e7d4b /drivers/gpio
parent7bdba73effe286fd607da9bb7448dd07a4452a33 (diff)
downloadlinux-a71dc2537a1ad792d6c3dc6129c60ec28447f215.tar.bz2
gpio: 104-idi-48: 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 ACCES 104-IDI-48. This should make it easier for users to identify which GPIO line corresponds to a respective GPIO pin on the device. Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio')
-rw-r--r--drivers/gpio/gpio-104-idi-48.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-104-idi-48.c b/drivers/gpio/gpio-104-idi-48.c
index dc100dff6e13..568375a7ebc2 100644
--- a/drivers/gpio/gpio-104-idi-48.c
+++ b/drivers/gpio/gpio-104-idi-48.c
@@ -217,6 +217,18 @@ static irqreturn_t idi_48_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
+#define IDI48_NGPIO 48
+static const char *idi48_names[IDI48_NGPIO] = {
+ "Bit 0 A", "Bit 1 A", "Bit 2 A", "Bit 3 A", "Bit 4 A", "Bit 5 A",
+ "Bit 6 A", "Bit 7 A", "Bit 8 A", "Bit 9 A", "Bit 10 A", "Bit 11 A",
+ "Bit 12 A", "Bit 13 A", "Bit 14 A", "Bit 15 A", "Bit 16 A", "Bit 17 A",
+ "Bit 18 A", "Bit 19 A", "Bit 20 A", "Bit 21 A", "Bit 22 A", "Bit 23 A",
+ "Bit 0 B", "Bit 1 B", "Bit 2 B", "Bit 3 B", "Bit 4 B", "Bit 5 B",
+ "Bit 6 B", "Bit 7 B", "Bit 8 B", "Bit 9 B", "Bit 10 B", "Bit 11 B",
+ "Bit 12 B", "Bit 13 B", "Bit 14 B", "Bit 15 B", "Bit 16 B", "Bit 17 B",
+ "Bit 18 B", "Bit 19 B", "Bit 20 B", "Bit 21 B", "Bit 22 B", "Bit 23 B"
+};
+
static int idi_48_probe(struct device *dev, unsigned int id)
{
struct idi_48_gpio *idi48gpio;
@@ -237,7 +249,8 @@ static int idi_48_probe(struct device *dev, unsigned int id)
idi48gpio->chip.parent = dev;
idi48gpio->chip.owner = THIS_MODULE;
idi48gpio->chip.base = -1;
- idi48gpio->chip.ngpio = 48;
+ idi48gpio->chip.ngpio = IDI48_NGPIO;
+ idi48gpio->chip.names = idi48_names;
idi48gpio->chip.get_direction = idi_48_gpio_get_direction;
idi48gpio->chip.direction_input = idi_48_gpio_direction_input;
idi48gpio->chip.get = idi_48_gpio_get;