Author: loos
Date: Thu Feb 13 18:42:23 2014
New Revision: 261845
URL: http://svnweb.freebsd.org/changeset/base/261845
Log:
Allow the use of the OFW GPIO bus for ti_gpio and bcm2835_gpio. With this
change the gpio children can be described as directly connected to the GPIO
controller without the need of describing the OFW GPIO bus itself on the
DTS file.
With this commit the OFW GPIO bus is fully functional on BBB and RPi.
GPIO controllers which want to use the OFW GPIO bus will need similar
changes.
Approved by: adrian (mentor, implicit)
Modified:
head/sys/arm/broadcom/bcm2835/bcm2835_gpio.c
head/sys/arm/ti/ti_gpio.c
Modified: head/sys/arm/broadcom/bcm2835/bcm2835_gpio.c
==============================================================================
--- head/sys/arm/broadcom/bcm2835/bcm2835_gpio.c Thu Feb 13 18:22:49
2014 (r261844)
+++ head/sys/arm/broadcom/bcm2835/bcm2835_gpio.c Thu Feb 13 18:42:23
2014 (r261845)
@@ -766,6 +766,14 @@ bcm_gpio_detach(device_t dev)
return (EBUSY);
}
+static phandle_t
+bcm_gpio_get_node(device_t bus, device_t dev)
+{
+
+ /* We only have one child, the GPIO bus, which needs our own node. */
+ return (ofw_bus_get_node(bus));
+}
+
static device_method_t bcm_gpio_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, bcm_gpio_probe),
@@ -782,6 +790,9 @@ static device_method_t bcm_gpio_methods[
DEVMETHOD(gpio_pin_set, bcm_gpio_pin_set),
DEVMETHOD(gpio_pin_toggle, bcm_gpio_pin_toggle),
+ /* ofw_bus interface */
+ DEVMETHOD(ofw_bus_get_node, bcm_gpio_get_node),
+
DEVMETHOD_END
};
Modified: head/sys/arm/ti/ti_gpio.c
==============================================================================
--- head/sys/arm/ti/ti_gpio.c Thu Feb 13 18:22:49 2014 (r261844)
+++ head/sys/arm/ti/ti_gpio.c Thu Feb 13 18:42:23 2014 (r261845)
@@ -792,6 +792,14 @@ ti_gpio_detach(device_t dev)
return(0);
}
+static phandle_t
+ti_gpio_get_node(device_t bus, device_t dev)
+{
+
+ /* We only have one child, the GPIO bus, which needs our own node. */
+ return (ofw_bus_get_node(bus));
+}
+
static device_method_t ti_gpio_methods[] = {
DEVMETHOD(device_probe, ti_gpio_probe),
DEVMETHOD(device_attach, ti_gpio_attach),
@@ -806,6 +814,10 @@ static device_method_t ti_gpio_methods[]
DEVMETHOD(gpio_pin_get, ti_gpio_pin_get),
DEVMETHOD(gpio_pin_set, ti_gpio_pin_set),
DEVMETHOD(gpio_pin_toggle, ti_gpio_pin_toggle),
+
+ /* ofw_bus interface */
+ DEVMETHOD(ofw_bus_get_node, ti_gpio_get_node),
+
{0, 0},
};
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