diff options
| -rw-r--r-- | drivers/pinctrl/pinctrl-lpc18xx.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/pinctrl/pinctrl-lpc18xx.c b/drivers/pinctrl/pinctrl-lpc18xx.c index 15fe1e2535c2..0facb7e64fef 100644 --- a/drivers/pinctrl/pinctrl-lpc18xx.c +++ b/drivers/pinctrl/pinctrl-lpc18xx.c @@ -729,6 +729,18 @@ static int lpc18xx_pconf_get_pin(enum pin_config_param param, int *arg, u32 reg, return 0; } +static struct lpc18xx_pin_caps *lpc18xx_get_pin_caps(unsigned pin) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) { + if (lpc18xx_pins[i].number == pin) + return lpc18xx_pins[i].drv_data; + } + + return NULL; +} + static int lpc18xx_pconf_get(struct pinctrl_dev *pctldev, unsigned pin, unsigned long *config) { @@ -737,14 +749,11 @@ static int lpc18xx_pconf_get(struct pinctrl_dev *pctldev, unsigned pin, struct lpc18xx_pin_caps *pin_cap; int ret, arg = 0; u32 reg; - int i; - for (i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) { - if (lpc18xx_pins[i].number == pin) - pin = i; - } + pin_cap = lpc18xx_get_pin_caps(pin); + if (!pin_cap) + return -EINVAL; - pin_cap = lpc18xx_pins[pin].drv_data; reg = readl(scu->base + pin_cap->offset); if (pin_cap->type == TYPE_I2C0) @@ -905,12 +914,10 @@ static int lpc18xx_pconf_set(struct pinctrl_dev *pctldev, unsigned pin, int ret; int i; - for (i = 0; i < ARRAY_SIZE(lpc18xx_pins); i++) { - if (lpc18xx_pins[i].number == pin) - break; - } + pin_cap = lpc18xx_get_pin_caps(pin); + if (!pin_cap) + return -EINVAL; - pin_cap = lpc18xx_pins[i].drv_data; reg = readl(scu->base + pin_cap->offset); for (i = 0; i < num_configs; i++) { |
