diff options
| author | Joe Hershberger <joe.hershberger@ni.com> | 2011-11-11 15:55:36 -0600 |
|---|---|---|
| committer | Kim Phillips <kim.phillips@freescale.com> | 2012-01-09 20:10:32 -0600 |
| commit | 365d607033b8fcb0a8c27aabcb4bb05fb3b64465 (patch) | |
| tree | 8530d4816c7014381fe5d84a7ab89b923115ecfe /drivers/gpio/s5p_gpio.c | |
| parent | 5f533aeb5117ebe4ef1d10b5cae326334965035d (diff) | |
| download | u-boot-imx-365d607033b8fcb0a8c27aabcb4bb05fb3b64465.zip u-boot-imx-365d607033b8fcb0a8c27aabcb4bb05fb3b64465.tar.gz u-boot-imx-365d607033b8fcb0a8c27aabcb4bb05fb3b64465.tar.bz2 | |
gpio: Replace ARM gpio.h with the common API in include/asm-generic
ARM boards should use the generic GPIO API
This means changing gpio to unsigned type
Remove the unused gpio_toggle() function which is not part of the API
Comment that free should not modify pin state
Signed-off-by: Joe Hershberger <joe.hershberger@ni.com>
Cc: Joe Hershberger <joe.hershberger@gmail.com>
fixed merge conflict in da8xx_gpio.c, tegra2_gpio.c, and
extended to the new mxs_gpio.c.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Cc: Albert ARIBAUD <albert.u.boot@aribaud.net>
Diffstat (limited to 'drivers/gpio/s5p_gpio.c')
| -rw-r--r-- | drivers/gpio/s5p_gpio.c | 47 |
1 files changed, 28 insertions, 19 deletions
diff --git a/drivers/gpio/s5p_gpio.c b/drivers/gpio/s5p_gpio.c index 1edf9a2..47f3213 100644 --- a/drivers/gpio/s5p_gpio.c +++ b/drivers/gpio/s5p_gpio.c @@ -20,7 +20,7 @@ #include <common.h> #include <asm/io.h> -#include <asm/arch/gpio.h> +#include <asm/gpio.h> #define CON_MASK(x) (0xf << ((x) << 2)) #define CON_SFR(x, v) ((v) << ((x) << 2)) @@ -142,46 +142,55 @@ void s5p_gpio_set_rate(struct s5p_gpio_bank *bank, int gpio, int mode) writel(value, &bank->drv); } -struct s5p_gpio_bank *s5p_gpio_get_bank(int nr) +struct s5p_gpio_bank *s5p_gpio_get_bank(unsigned gpio) { - int bank = nr / GPIO_PER_BANK; + int bank = gpio / GPIO_PER_BANK; bank *= sizeof(struct s5p_gpio_bank); - return (struct s5p_gpio_bank *) (s5p_gpio_base(nr) + bank); + return (struct s5p_gpio_bank *) (s5p_gpio_base(gpio) + bank); } -int s5p_gpio_get_pin(int nr) +int s5p_gpio_get_pin(unsigned gpio) { - return nr % GPIO_PER_BANK; + return gpio % GPIO_PER_BANK; } -int gpio_request(int gpio, const char *label) +/* Common GPIO API */ + +int gpio_request(unsigned gpio, const char *label) { return 0; } -int gpio_direction_input(int nr) +int gpio_free(unsigned gpio) { - s5p_gpio_direction_input(s5p_gpio_get_bank(nr), - s5p_gpio_get_pin(nr)); return 0; } -int gpio_direction_output(int nr, int value) +int gpio_direction_input(unsigned gpio) { - s5p_gpio_direction_output(s5p_gpio_get_bank(nr), - s5p_gpio_get_pin(nr), value); + s5p_gpio_direction_input(s5p_gpio_get_bank(gpio), + s5p_gpio_get_pin(gpio)); return 0; } -int gpio_get_value(int nr) +int gpio_direction_output(unsigned gpio, int value) { - return (int) s5p_gpio_get_value(s5p_gpio_get_bank(nr), - s5p_gpio_get_pin(nr)); + s5p_gpio_direction_output(s5p_gpio_get_bank(gpio), + s5p_gpio_get_pin(gpio), value); + return 0; } -void gpio_set_value(int nr, int value) +int gpio_get_value(unsigned gpio) { - s5p_gpio_set_value(s5p_gpio_get_bank(nr), - s5p_gpio_get_pin(nr), value); + return (int) s5p_gpio_get_value(s5p_gpio_get_bank(gpio), + s5p_gpio_get_pin(gpio)); +} + +int gpio_set_value(unsigned gpio, int value) +{ + s5p_gpio_set_value(s5p_gpio_get_bank(gpio), + s5p_gpio_get_pin(gpio), value); + + return 0; } |