pinctrl: at91: provide gpio names
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index b9e2cbd..401fc96 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1364,9 +1364,10 @@
struct gpio_chip *chip;
struct pinctrl_gpio_range *range;
int ret = 0;
- int irq;
+ int irq, i;
int alias_idx = of_alias_get_id(np, "gpio");
uint32_t ngpio;
+ char **names;
BUG_ON(alias_idx >= ARRAY_SIZE(gpio_chips));
if (gpio_chips[alias_idx]) {
@@ -1436,6 +1437,18 @@
chip->ngpio = ngpio;
}
+ names = devm_kzalloc(&pdev->dev, sizeof(char*) * chip->ngpio, GFP_KERNEL);
+
+ if (!names) {
+ ret = -ENOMEM;
+ goto clk_err;
+ }
+
+ for (i = 0; i < chip->ngpio; i++)
+ names[i] = kasprintf(GFP_KERNEL, "pio%c%d", alias_idx + 'A', i);
+
+ chip->names = (const char*const*)names;
+
range = &at91_chip->range;
range->name = chip->label;
range->id = alias_idx;