drivers: iio: dac: ad5592r: add gpio_chip names

Add array of explicit gpio names for the `gpiochip` structure of
ad5592r, mainly for debug purposes.

Since the gpios are configurable via the dts, generic names are
used.

Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://lore.kernel.org/r/20221117090130.51702-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

diff --git a/drivers/iio/dac/ad5592r-base.c b/drivers/iio/dac/ad5592r-base.c
index 7a9b5fc1e5794cda26369810e74d9adff3381bb8..076bc9ecfb4994077754357c4da7d6e077534a00 100644 (file)
--- a/drivers/iio/dac/ad5592r-base.c
+++ b/drivers/iio/dac/ad5592r-base.c
@@ -124,6 +124,10 @@ static int ad5592r_gpio_request(struct gpio_chip *chip, unsigned offset)
        return 0;
 }
 
+static const char * const ad5592r_gpio_names[] = {
+       "GPIO0", "GPIO1", "GPIO2", "GPIO3", "GPIO4", "GPIO5", "GPIO6", "GPIO7",
+};
+
 static int ad5592r_gpio_init(struct ad5592r_state *st)
 {
        if (!st->gpio_map)
@@ -140,6 +144,7 @@ static int ad5592r_gpio_init(struct ad5592r_state *st)
        st->gpiochip.set = ad5592r_gpio_set;
        st->gpiochip.request = ad5592r_gpio_request;
        st->gpiochip.owner = THIS_MODULE;
+       st->gpiochip.names = ad5592r_gpio_names;
 
        mutex_init(&st->gpio_lock);