gpio/nomadik: show all pins in debug
Useful to check the status of the runtime pin muxing. Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Reviewed-by: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> [Squashed, modified to use chip-internal IRQ trigger state] Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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@ -811,20 +811,43 @@ static void nmk_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip)
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bool pull;
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u32 bit = 1 << i;
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if (!label)
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continue;
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is_out = readl(nmk_chip->addr + NMK_GPIO_DIR) & bit;
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pull = !(readl(nmk_chip->addr + NMK_GPIO_PDIS) & bit);
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mode = nmk_gpio_get_mode(gpio);
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seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s %s",
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gpio, label,
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gpio, label ?: "(none)",
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is_out ? "out" : "in ",
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chip->get
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? (chip->get(chip, i) ? "hi" : "lo")
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: "? ",
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(mode < 0) ? "unknown" : modes[mode],
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pull ? "pull" : "none");
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if (label && !is_out) {
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int irq = gpio_to_irq(gpio);
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struct irq_desc *desc = irq_to_desc(irq);
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/* This races with request_irq(), set_irq_type(),
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* and set_irq_wake() ... but those are "rare".
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*/
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if (irq >= 0 && desc->action) {
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char *trigger;
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u32 bitmask = nmk_gpio_get_bitmask(gpio);
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if (nmk_chip->edge_rising & bitmask)
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trigger = "edge-rising";
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else if (nmk_chip->edge_falling & bitmask)
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trigger = "edge-falling";
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else
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trigger = "edge-undefined";
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seq_printf(s, " irq-%d %s%s",
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irq, trigger,
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irqd_is_wakeup_set(&desc->irq_data)
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? " wakeup" : "");
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}
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}
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seq_printf(s, "\n");
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}
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}
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