diff options
Diffstat (limited to 'drivers/gpio/mxs_gpio.c')
-rw-r--r-- | drivers/gpio/mxs_gpio.c | 42 |
1 files changed, 19 insertions, 23 deletions
diff --git a/drivers/gpio/mxs_gpio.c b/drivers/gpio/mxs_gpio.c index 539738be9b5..0365812c0a6 100644 --- a/drivers/gpio/mxs_gpio.c +++ b/drivers/gpio/mxs_gpio.c @@ -69,68 +69,64 @@ void mxs_gpio_init(void) } } -int gpio_get_value(int gp) +int gpio_get_value(unsigned gpio) { - uint32_t bank = PAD_BANK(gp); + uint32_t bank = PAD_BANK(gpio); uint32_t offset = PINCTRL_DIN(bank); struct mx28_register *reg = (struct mx28_register *)(MXS_PINCTRL_BASE + offset); - return (readl(®->reg) >> PAD_PIN(gp)) & 1; + return (readl(®->reg) >> PAD_PIN(gpio)) & 1; } -void gpio_set_value(int gp, int value) +void gpio_set_value(unsigned gpio, int value) { - uint32_t bank = PAD_BANK(gp); + uint32_t bank = PAD_BANK(gpio); uint32_t offset = PINCTRL_DOUT(bank); struct mx28_register *reg = (struct mx28_register *)(MXS_PINCTRL_BASE + offset); if (value) - writel(1 << PAD_PIN(gp), ®->reg_set); + writel(1 << PAD_PIN(gpio), ®->reg_set); else - writel(1 << PAD_PIN(gp), ®->reg_clr); + writel(1 << PAD_PIN(gpio), ®->reg_clr); } -int gpio_direction_input(int gp) +int gpio_direction_input(unsigned gpio) { - uint32_t bank = PAD_BANK(gp); + uint32_t bank = PAD_BANK(gpio); uint32_t offset = PINCTRL_DOE(bank); struct mx28_register *reg = (struct mx28_register *)(MXS_PINCTRL_BASE + offset); - writel(1 << PAD_PIN(gp), ®->reg_clr); + writel(1 << PAD_PIN(gpio), ®->reg_clr); return 0; } -int gpio_direction_output(int gp, int value) +int gpio_direction_output(unsigned gpio, int value) { - uint32_t bank = PAD_BANK(gp); + uint32_t bank = PAD_BANK(gpio); uint32_t offset = PINCTRL_DOE(bank); struct mx28_register *reg = (struct mx28_register *)(MXS_PINCTRL_BASE + offset); - writel(1 << PAD_PIN(gp), ®->reg_set); + writel(1 << PAD_PIN(gpio), ®->reg_set); - gpio_set_value(gp, value); + gpio_set_value(gpio, value); return 0; } -int gpio_request(int gp, const char *label) +int gpio_request(unsigned gpio, const char *label) { - if (PAD_BANK(gp) >= PINCTRL_BANKS) - return -EINVAL; + if (PAD_BANK(gpio) >= PINCTRL_BANKS) + return -1; return 0; } -void gpio_free(int gp) +int gpio_free(unsigned gpio) { -} - -void gpio_toggle_value(int gp) -{ - gpio_set_value(gp, !gpio_get_value(gp)); + return 0; } |