diff options
| author |   Hartley Sweeten <hartleys@visionengravers.com> | 2009-06-26 21:40:34 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2009-06-27 10:41:14 +0100 |
| commit | f04989bbf4a40077dc7ddcc3dccde11a5f3e91f2 (patch) | |
| tree | 6a7c93b9d465dd88d1eec7fbf923b11b086397a0 /arch/arm/mach-ep93xx | |
| parent | [ARM] 5574/1: ep93xx: gpio.c: fix header includes and __iomem pointers (diff) | |
| download | linux-dev-f04989bbf4a40077dc7ddcc3dccde11a5f3e91f2.tar.xz linux-dev-f04989bbf4a40077dc7ddcc3dccde11a5f3e91f2.zip | |
[ARM] 5575/1: ep93xx: Show gpio interrupt type in debugfs output.
ep93xx: Show gpio interrupt type in debugfs output.
EP93xx uses a private implementation for the debugfs output.
Modify this output so it includes the interrupt type when the
gpio is configured as an interrupt
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <ryan@bluewatersys.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-ep93xx')
| -rw-r--r-- | arch/arm/mach-ep93xx/gpio.c | 56 |
1 files changed, 51 insertions, 5 deletions
diff --git a/arch/arm/mach-ep93xx/gpio.c b/arch/arm/mach-ep93xx/gpio.c index 7b7a564916f3..2d83d69e2eed 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) \ |