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authorWilliam Breathitt Gray <vilhelm.gray@gmail.com>2017-01-30 13:33:37 -0500
committerLinus Walleij <linus.walleij@linaro.org>2017-02-01 16:05:28 +0100
commit210b4bde5fc9974e60a912f9a17c014c7cbf5b75 (patch)
tree8e8544da99279cefb785c5c52894d355481ac3dc /drivers/gpio
parente0af4b5e248bcfbdb056691c9b12ee697b07c213 (diff)
downloadlinux-210b4bde5fc9974e60a912f9a17c014c7cbf5b75.tar.bz2
gpio: gpio-mm: 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 Diamond Systems GPIO-MM. 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-gpio-mm.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpio/gpio-gpio-mm.c b/drivers/gpio/gpio-gpio-mm.c
index 60017425b49f..fa4baa2543db 100644
--- a/drivers/gpio/gpio-gpio-mm.c
+++ b/drivers/gpio/gpio-gpio-mm.c
@@ -230,6 +230,18 @@ static void gpiomm_gpio_set_multiple(struct gpio_chip *chip,
}
}
+#define GPIOMM_NGPIO 48
+static const char *gpiomm_names[GPIOMM_NGPIO] = {
+ "Port 1A0", "Port 1A1", "Port 1A2", "Port 1A3", "Port 1A4", "Port 1A5",
+ "Port 1A6", "Port 1A7", "Port 1B0", "Port 1B1", "Port 1B2", "Port 1B3",
+ "Port 1B4", "Port 1B5", "Port 1B6", "Port 1B7", "Port 1C0", "Port 1C1",
+ "Port 1C2", "Port 1C3", "Port 1C4", "Port 1C5", "Port 1C6", "Port 1C7",
+ "Port 2A0", "Port 2A1", "Port 2A2", "Port 2A3", "Port 2A4", "Port 2A5",
+ "Port 2A6", "Port 2A7", "Port 2B0", "Port 2B1", "Port 2B2", "Port 2B3",
+ "Port 2B4", "Port 2B5", "Port 2B6", "Port 2B7", "Port 2C0", "Port 2C1",
+ "Port 2C2", "Port 2C3", "Port 2C4", "Port 2C5", "Port 2C6", "Port 2C7",
+};
+
static int gpiomm_probe(struct device *dev, unsigned int id)
{
struct gpiomm_gpio *gpiommgpio;
@@ -250,7 +262,8 @@ static int gpiomm_probe(struct device *dev, unsigned int id)
gpiommgpio->chip.parent = dev;
gpiommgpio->chip.owner = THIS_MODULE;
gpiommgpio->chip.base = -1;
- gpiommgpio->chip.ngpio = 48;
+ gpiommgpio->chip.ngpio = GPIOMM_NGPIO;
+ gpiommgpio->chip.names = gpiomm_names;
gpiommgpio->chip.get_direction = gpiomm_gpio_get_direction;
gpiommgpio->chip.direction_input = gpiomm_gpio_direction_input;
gpiommgpio->chip.direction_output = gpiomm_gpio_direction_output;