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/mxs_gpio.c | |
| parent | 5f533aeb5117ebe4ef1d10b5cae326334965035d (diff) | |
| download | olio-uboot-2014.01-365d607033b8fcb0a8c27aabcb4bb05fb3b64465.tar.xz olio-uboot-2014.01-365d607033b8fcb0a8c27aabcb4bb05fb3b64465.zip | |
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/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 539738be9..0365812c0 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; } |