[PATCH 4/5] gpio: gpio-mm: Add support for GPIO names
From: William Breathitt Gray <hidden>
Date: 2017-01-30 17:15:17
Also in:
lkml
Subsystem:
diamond systems gpio-mm gpio driver, gpio subsystem, the rest · Maintainers:
William Breathitt Gray, Linus Walleij, Bartosz Golaszewski, Linus Torvalds
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 <redacted> --- drivers/gpio/gpio-gpio-mm.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-gpio-mm.c b/drivers/gpio/gpio-gpio-mm.c
index 393c8f9cf30d..bf74cc55ab44 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;
--
2.11.0