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-rw-r--r--arch/arm/mach-ep93xx/gpio.c56
1 files changed, 51 insertions, 5 deletions
diff --git a/arch/arm/mach-ep93xx/gpio.c b/arch/arm/mach-ep93xx/gpio.c
index 7b7a564916f..2d83d69e2ee 100644
--- a/arch/arm/mach-ep93xx/gpio.c
+++ b/arch/arm/mach-ep93xx/gpio.c
@@ -111,15 +111,61 @@ static void ep93xx_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
{
struct ep93xx_gpio_chip *ep93xx_chip = to_ep93xx_gpio_chip(chip);
u8 data_reg, data_dir_reg;
- int i;
+ int gpio, i;
data_reg = __raw_readb(ep93xx_chip->data_reg);
data_dir_reg = __raw_readb(ep93xx_chip->data_dir_reg);
- for (i = 0; i < chip->ngpio; i++)
- seq_printf(s, "GPIO %s%d: %s %s\n", chip->label, i,
- (data_reg & (1 << i)) ? "set" : "clear",
- (data_dir_reg & (1 << i)) ? "out" : "in");
+ gpio = ep93xx_chip->chip.base;
+ for (i = 0; i < chip->ngpio; i++, gpio++) {
+ int is_out = data_dir_reg & (1 << i);
+
+ seq_printf(s, " %s%d gpio-%-3d (%-12s) %s %s",
+ chip->label, i, gpio,
+ gpiochip_is_requested(chip, i) ? : "",
+ is_out ? "out" : "in ",
+ (data_reg & (1 << i)) ? "hi" : "lo");
+
+ if (!is_out) {
+ int irq = gpio_to_irq(gpio);
+ struct irq_desc *desc = irq_desc + irq;
+
+ if (irq >= 0 && desc->action) {
+ char *trigger;
+
+ switch (desc->status & IRQ_TYPE_SENSE_MASK) {
+ case IRQ_TYPE_NONE:
+ trigger = "(default)";
+ break;
+ case IRQ_TYPE_EDGE_FALLING:
+ trigger = "edge-falling";
+ break;
+ case IRQ_TYPE_EDGE_RISING:
+ trigger = "edge-rising";
+ break;
+ case IRQ_TYPE_EDGE_BOTH:
+ trigger = "edge-both";
+ break;
+ case IRQ_TYPE_LEVEL_HIGH:
+ trigger = "level-high";
+ break;
+ case IRQ_TYPE_LEVEL_LOW:
+ trigger = "level-low";
+ break;
+ default:
+ trigger = "?trigger?";
+ break;
+ }
+
+ seq_printf(s, " irq-%d %s%s",
+ irq, trigger,
+ (desc->status & IRQ_WAKEUP)
+ ? " wakeup" : "");
+ }
+ }
+
+ seq_printf(s, "\n");
+ }
}
#define EP93XX_GPIO_BANK(name, dr, ddr, base_gpio) \