[PATCH 04/12] pinctrl/nomadik: reuse GPIO debug function for pins
Linus Walleij
linus.walleij at stericsson.com
Tue May 8 05:44:46 EDT 2012
From: Linus Walleij <linus.walleij at linaro.org>
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.
Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
---
drivers/pinctrl/pinctrl-nomadik.c | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index d9e41c9..750703f 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -1332,10 +1332,36 @@ 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 = {
--
1.7.9.2
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