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| author | loos <loos@FreeBSD.org> | 2015-01-31 19:32:14 +0000 |
|---|---|---|
| committer | loos <loos@FreeBSD.org> | 2015-01-31 19:32:14 +0000 |
| commit | 5e1a5939929b3ae8ec6f7e44ddd1b51b3c542cc6 (patch) | |
| tree | 4edc5f6a6f697cb6c391fc6f0800ce835ba4024d /sys/arm/samsung/exynos/exynos5_pad.c | |
| parent | 92c5395dfebe86676461d4e940ccf2b4249770e5 (diff) | |
| download | FreeBSD-src-5e1a5939929b3ae8ec6f7e44ddd1b51b3c542cc6.zip FreeBSD-src-5e1a5939929b3ae8ec6f7e44ddd1b51b3c542cc6.tar.gz | |
Implement GPIO_GET_BUS() method for all GPIO drivers.
Add helper routines to deal with attach and detach of gpiobus and gpioc
devices that are common to all drivers.
Diffstat (limited to 'sys/arm/samsung/exynos/exynos5_pad.c')
| -rw-r--r-- | sys/arm/samsung/exynos/exynos5_pad.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/sys/arm/samsung/exynos/exynos5_pad.c b/sys/arm/samsung/exynos/exynos5_pad.c index 0e58bf5..19fa583 100644 --- a/sys/arm/samsung/exynos/exynos5_pad.c +++ b/sys/arm/samsung/exynos/exynos5_pad.c @@ -45,6 +45,7 @@ __FBSDID("$FreeBSD$"); #include <sys/mutex.h> #include <sys/gpio.h> +#include <dev/gpio/gpiobusvar.h> #include <dev/ofw/openfirm.h> #include <dev/ofw/ofw_bus.h> #include <dev/ofw/ofw_bus_subr.h> @@ -82,6 +83,7 @@ __FBSDID("$FreeBSD$"); /* * GPIO interface */ +static device_t pad_get_bus(device_t); static int pad_pin_max(device_t, int *); static int pad_pin_getcaps(device_t, uint32_t, uint32_t *); static int pad_pin_getname(device_t, uint32_t, char *); @@ -111,6 +113,7 @@ struct pad_softc { struct gpio_pin gpio_pins[MAX_NGPIO]; void *gpio_ih[MAX_PORTS]; device_t dev; + device_t busdev; int model; struct resource_spec *pad_spec; struct gpio_bank *gpio_map; @@ -558,11 +561,11 @@ pad_attach(device_t dev) snprintf(sc->gpio_pins[i].gp_name, GPIOMAXNAME, "pad%d.%d", device_get_unit(dev), i); } + sc->busdev = gpiobus_attach_bus(dev); + if (sc->busdev == NULL) + goto fail; - device_add_child(dev, "gpioc", -1); - device_add_child(dev, "gpiobus", -1); - - return (bus_generic_attach(dev)); + return (0); fail: for (i = 0; i < sc->nports; i++) { @@ -576,6 +579,16 @@ fail: return (ENXIO); } +static device_t +pad_get_bus(device_t dev) +{ + struct pad_softc *sc; + + sc = device_get_softc(dev); + + return (sc->busdev); +} + static int pad_pin_max(device_t dev, int *maxpin) { @@ -817,6 +830,7 @@ static device_method_t pad_methods[] = { DEVMETHOD(device_attach, pad_attach), /* GPIO protocol */ + DEVMETHOD(gpio_get_bus, pad_get_bus), DEVMETHOD(gpio_pin_max, pad_pin_max), DEVMETHOD(gpio_pin_getname, pad_pin_getname), DEVMETHOD(gpio_pin_getcaps, pad_pin_getcaps), |
