Author: loos
Date: Sun Aug 30 22:38:06 2015
New Revision: 287315
URL: https://svnweb.freebsd.org/changeset/base/287315
Log:
The vendor's DTS for Allwinner A20 uses a different way to map the gpio
pins, they specify the bank and the pin in two separated cells.
This allow the use of vendor's DTS definitions by adding a gpio map
routine that copes with that.
Modified:
head/sys/arm/allwinner/a10_gpio.c
Modified: head/sys/arm/allwinner/a10_gpio.c
==============================================================================
--- head/sys/arm/allwinner/a10_gpio.c Sun Aug 30 21:55:01 2015
(r287314)
+++ head/sys/arm/allwinner/a10_gpio.c Sun Aug 30 22:38:06 2015
(r287315)
@@ -449,6 +449,18 @@ a10_gpio_get_node(device_t dev, device_t
return (ofw_bus_get_node(dev));
}
+static int
+a10_gpio_map_gpios(device_t bus, phandle_t dev, phandle_t gparent, int gcells,
+ pcell_t *gpios, uint32_t *pin, uint32_t *flags)
+{
+
+ /* The GPIO pins are mapped as: <gpio-phandle bank pin flags>. */
+ *pin = gpios[0] * 32 + gpios[1];
+ *flags = gpios[gcells - 1];
+
+ return (0);
+}
+
static device_method_t a10_gpio_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, a10_gpio_probe),
@@ -465,6 +477,7 @@ static device_method_t a10_gpio_methods[
DEVMETHOD(gpio_pin_get, a10_gpio_pin_get),
DEVMETHOD(gpio_pin_set, a10_gpio_pin_set),
DEVMETHOD(gpio_pin_toggle, a10_gpio_pin_toggle),
+ DEVMETHOD(gpio_map_gpios, a10_gpio_map_gpios),
/* ofw_bus interface */
DEVMETHOD(ofw_bus_get_node, a10_gpio_get_node),
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