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authorWilliam Breathitt Gray <vilhelm.gray@gmail.com>2017-01-30 13:32:58 -0500
committerLinus Walleij <linus.walleij@linaro.org>2017-02-01 16:02:50 +0100
commit7bdba73effe286fd607da9bb7448dd07a4452a33 (patch)
treeb31c5116ad3a99fba5b88219b610c879783ad3f7 /drivers/gpio
parent9e1b487bb494f1fd45ce4952aa665ba1611d34b4 (diff)
downloadlinux-7bdba73effe286fd607da9bb7448dd07a4452a33.tar.bz2
gpio: 104-dio-48e: 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-DIO-48E. 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-dio-48e.c23
1 files changed, 22 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-104-dio-48e.c b/drivers/gpio/gpio-104-dio-48e.c
index b6b0378166c4..17bd2ab4ebe2 100644
--- a/drivers/gpio/gpio-104-dio-48e.c
+++ b/drivers/gpio/gpio-104-dio-48e.c
@@ -338,6 +338,26 @@ static irqreturn_t dio48e_irq_handler(int irq, void *dev_id)
return IRQ_HANDLED;
}
+#define DIO48E_NGPIO 48
+static const char *dio48e_names[DIO48E_NGPIO] = {
+ "PPI Group 0 Port A 0", "PPI Group 0 Port A 1", "PPI Group 0 Port A 2",
+ "PPI Group 0 Port A 3", "PPI Group 0 Port A 4", "PPI Group 0 Port A 5",
+ "PPI Group 0 Port A 6", "PPI Group 0 Port A 7", "PPI Group 0 Port B 0",
+ "PPI Group 0 Port B 1", "PPI Group 0 Port B 2", "PPI Group 0 Port B 3",
+ "PPI Group 0 Port B 4", "PPI Group 0 Port B 5", "PPI Group 0 Port B 6",
+ "PPI Group 0 Port B 7", "PPI Group 0 Port C 0", "PPI Group 0 Port C 1",
+ "PPI Group 0 Port C 2", "PPI Group 0 Port C 3", "PPI Group 0 Port C 4",
+ "PPI Group 0 Port C 5", "PPI Group 0 Port C 6", "PPI Group 0 Port C 7",
+ "PPI Group 1 Port A 0", "PPI Group 1 Port A 1", "PPI Group 1 Port A 2",
+ "PPI Group 1 Port A 3", "PPI Group 1 Port A 4", "PPI Group 1 Port A 5",
+ "PPI Group 1 Port A 6", "PPI Group 1 Port A 7", "PPI Group 1 Port B 0",
+ "PPI Group 1 Port B 1", "PPI Group 1 Port B 2", "PPI Group 1 Port B 3",
+ "PPI Group 1 Port B 4", "PPI Group 1 Port B 5", "PPI Group 1 Port B 6",
+ "PPI Group 1 Port B 7", "PPI Group 1 Port C 0", "PPI Group 1 Port C 1",
+ "PPI Group 1 Port C 2", "PPI Group 1 Port C 3", "PPI Group 1 Port C 4",
+ "PPI Group 1 Port C 5", "PPI Group 1 Port C 6", "PPI Group 1 Port C 7"
+};
+
static int dio48e_probe(struct device *dev, unsigned int id)
{
struct dio48e_gpio *dio48egpio;
@@ -358,7 +378,8 @@ static int dio48e_probe(struct device *dev, unsigned int id)
dio48egpio->chip.parent = dev;
dio48egpio->chip.owner = THIS_MODULE;
dio48egpio->chip.base = -1;
- dio48egpio->chip.ngpio = 48;
+ dio48egpio->chip.ngpio = DIO48E_NGPIO;
+ dio48egpio->chip.names = dio48e_names;
dio48egpio->chip.get_direction = dio48e_gpio_get_direction;
dio48egpio->chip.direction_input = dio48e_gpio_direction_input;
dio48egpio->chip.direction_output = dio48e_gpio_direction_output;