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authorLinus Walleij <linus.walleij@linaro.org>2015-06-17 16:05:47 +0200
committerLinus Walleij <linus.walleij@linaro.org>2015-07-23 09:11:09 +0200
commit6ca7d2e352545132923bfdfcd17a4ceee80f5ce9 (patch)
tree583e48c02f43c7dab006c6ab299288a8b2b00db3 /drivers/pinctrl/nomadik
parentbc222ef4f79fa0003ef5a0af8090372e3bd8a783 (diff)
downloadlinux-6ca7d2e352545132923bfdfcd17a4ceee80f5ce9.tar.bz2
pinctrl: nomadik: find chip from local array
Instead of indexing around the GPIO ranges to find a chip, look directly in the local array of state containers for nmk_gpio_chip:s. Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/nomadik')
-rw-r--r--drivers/pinctrl/nomadik/pinctrl-nomadik.c64
1 files changed, 26 insertions, 38 deletions
diff --git a/drivers/pinctrl/nomadik/pinctrl-nomadik.c b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
index ceed731d4a2d..7b1160def285 100644
--- a/drivers/pinctrl/nomadik/pinctrl-nomadik.c
+++ b/drivers/pinctrl/nomadik/pinctrl-nomadik.c
@@ -1354,35 +1354,40 @@ 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)
+static struct nmk_gpio_chip *find_nmk_gpio_from_pin(unsigned pin)
{
- struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
int i;
+ struct nmk_gpio_chip *nmk_gpio;
- 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;
+ for(i = 0; i < NMK_MAX_BANKS; i++) {
+ nmk_gpio = nmk_gpio_chips[i];
+ if (!nmk_gpio)
+ continue;
+ if (pin >= nmk_gpio->chip.base &&
+ pin < nmk_gpio->chip.base + nmk_gpio->chip.ngpio)
+ return nmk_gpio;
}
return NULL;
}
+static struct gpio_chip *find_gc_from_pin(unsigned pin)
+{
+ struct nmk_gpio_chip *nmk_gpio = find_nmk_gpio_from_pin(pin);
+
+ if (nmk_gpio)
+ return &nmk_gpio->chip;
+ return NULL;
+}
+
static void nmk_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
unsigned offset)
{
- struct pinctrl_gpio_range *range;
- struct gpio_chip *chip;
+ struct gpio_chip *chip = find_gc_from_pin(offset);
- range = nmk_match_gpio_range(pctldev, offset);
- if (!range || !range->gc) {
+ if (!chip) {
seq_printf(s, "invalid pin offset");
return;
}
- chip = range->gc;
nmk_gpio_dbg_show_one(s, pctldev, chip, offset - chip->base, offset);
}
@@ -1727,25 +1732,16 @@ static int nmk_pmx_set(struct pinctrl_dev *pctldev, unsigned function,
}
for (i = 0; i < g->npins; i++) {
- struct pinctrl_gpio_range *range;
struct nmk_gpio_chip *nmk_chip;
- struct gpio_chip *chip;
unsigned bit;
- range = nmk_match_gpio_range(pctldev, g->pins[i]);
- if (!range) {
+ nmk_chip = find_nmk_gpio_from_pin(g->pins[i]);
+ if (!nmk_chip) {
dev_err(npct->dev,
"invalid pin offset %d in group %s at index %d\n",
g->pins[i], g->name, i);
goto out_glitch;
}
- if (!range->gc) {
- dev_err(npct->dev, "GPIO chip missing in range for pin offset %d in group %s at index %d\n",
- g->pins[i], g->name, i);
- goto out_glitch;
- }
- chip = range->gc;
- nmk_chip = container_of(chip, struct nmk_gpio_chip, chip);
dev_dbg(npct->dev, "setting pin %d to altsetting %d\n", g->pins[i], g->altsetting);
clk_enable(nmk_chip->clk);
@@ -1861,25 +1857,17 @@ static int nmk_pin_config_set(struct pinctrl_dev *pctldev, unsigned pin,
};
struct nmk_pinctrl *npct = pinctrl_dev_get_drvdata(pctldev);
struct nmk_gpio_chip *nmk_chip;
- struct pinctrl_gpio_range *range;
- struct gpio_chip *chip;
unsigned bit;
pin_cfg_t cfg;
int pull, slpm, output, val, i;
bool lowemi, gpiomode, sleep;
- range = nmk_match_gpio_range(pctldev, pin);
- if (!range) {
- dev_err(npct->dev, "invalid pin offset %d\n", pin);
+ nmk_chip = find_nmk_gpio_from_pin(pin);
+ if (!nmk_chip) {
+ dev_err(npct->dev,
+ "invalid pin offset %d\n", pin);
return -EINVAL;
}
- if (!range->gc) {
- dev_err(npct->dev, "GPIO chip missing in range for pin %d\n",
- pin);
- return -EINVAL;
- }
- chip = range->gc;
- nmk_chip = container_of(chip, struct nmk_gpio_chip, chip);
for (i = 0; i < num_configs; i++) {
/*