pinctrl/nomadik: reuse GPIO debug function for pins

Since all pins we can control are GPIOs, match a GPIO range to
each pin in the debug function and call into the GPIO debug
print function to have the per-pin information.

Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 27 insertions, 1 deletions

diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index 8ed7917d513d..7543eb243c12 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -1326,10 +1326,36 @@ static int nmk_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
         return 0;
 }
 
+static struct pinctrl_gpio_range *
+nmk_match_gpio_range(struct pinctrl_dev *pctldev, unsigned offset)
+{
+        struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
+        int i;
+
+        for (i = 0; i < npct->soc->gpio_num_ranges; i++) {
+                struct pinctrl_gpio_range *range;
+
+                range = &npct->soc->gpio_ranges[i];
+                if (offset >= range->pin_base &&
+                    offset <= (range->pin_base + range->npins - 1))
+                        return range;
+        }
+        return NULL;
+}
+
 static void nmk_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
                    unsigned offset)
 {
-        seq_printf(s, " Nomadik GPIO");
+        struct pinctrl_gpio_range *range;
+        struct gpio_chip *chip;
+
+        range = nmk_match_gpio_range(pctldev, offset);
+        if (!range || !range->gc) {
+                seq_printf(s, "invalid pin offset");
+                return;
+        }
+        chip = range->gc;
+        nmk_gpio_dbg_show_one(s, chip, offset - chip->base, offset);
 }
 
 static struct pinctrl_ops nmk_pinctrl_ops = {