static int
awusbphy_init(device_t dev)
{
struct awusbphy_softc *sc;
phandle_t node;
char pname[20];
int error, off;
regulator_t reg;
hwreset_t rst;
clk_t clk;
sc = device_get_softc(dev);
node = ofw_bus_get_node(dev);
/* Enable clocks */
for (off = 0; clk_get_by_ofw_index(dev, off, &clk) == 0; off++) {
error = clk_enable(clk);
if (error != 0) {
device_printf(dev, "couldn't enable clock %s\n",
clk_get_name(clk));
return (error);
}
}
/* De-assert resets */
for (off = 0; hwreset_get_by_ofw_idx(dev, off, &rst) == 0; off++) {
error = hwreset_deassert(rst);
if (error != 0) {
device_printf(dev, "couldn't de-assert reset %d\n",
off);
return (error);
}
}
/* Get regulators */
for (off = 0; off < USBPHY_NPHYS; off++) {
snprintf(pname, sizeof(pname), "usb%d_vbus-supply", off);
if (regulator_get_by_ofw_property(dev, pname, ®) == 0)
sc->reg[off] = reg;
}
/* Get GPIOs */
error = gpio_pin_get_by_ofw_property(dev, node, "usb0_id_det-gpios",
&sc->id_det_pin);
if (error == 0)
sc->id_det_valid = 1;
error = gpio_pin_get_by_ofw_property(dev, node, "usb0_vbus_det-gpios",
&sc->vbus_det_pin);
if (error == 0)
sc->vbus_det_valid = 1;
return (0);
}
int
tegra_drm_encoder_attach(struct tegra_drm_encoder *output, phandle_t node)
{
int rv;
phandle_t ddc;
/* XXX parse output panel here */
rv = OF_getencprop_alloc(node, "nvidia,edid",
(void **)&output->edid);
/* EDID exist but have invalid size */
if ((rv >= 0) && (rv != sizeof(struct edid))) {
device_printf(output->dev,
"Malformed \"nvidia,edid\" property\n");
if (output->edid != NULL)
free(output->edid, M_OFWPROP);
return (ENXIO);
}
gpio_pin_get_by_ofw_property(output->dev, node, "nvidia,hpd-gpio",
&output->gpio_hpd);
ddc = 0;
OF_getencprop(node, "nvidia,ddc-i2c-bus", &ddc, sizeof(ddc));
if (ddc > 0)
output->ddc = OF_device_from_xref(ddc);
if ((output->edid == NULL) && (output->ddc == NULL))
return (ENXIO);
if (output->gpio_hpd != NULL) {
output->connector.polled =
// DRM_CONNECTOR_POLL_HPD;
DRM_CONNECTOR_POLL_DISCONNECT |
DRM_CONNECTOR_POLL_CONNECT;
}
return (0);
}
/*
* Write protect setup.
*/
static void
wp_setup(struct sdhci_fdt_gpio *gpio, phandle_t node)
{
device_t dev;
dev = gpio->dev;
if (OF_hasprop(node, "wp-disable")) {
gpio->wp_disabled = true;
if (bootverbose)
device_printf(dev, "Write protect disabled\n");
return;
}
if (gpio_pin_get_by_ofw_property(dev, node, "wp-gpios", &gpio->wp_pin))
return;
if (OF_hasprop(node, "wp-inverted"))
gpio->wp_inverted = true;
if (bootverbose)
device_printf(dev, "Write protect switch on %s pin %u\n",
device_get_nameunit(gpio->wp_pin->dev), gpio->wp_pin->pin);
}
/*
* Card detect setup.
*/
static void
cd_setup(struct sdhci_fdt_gpio *gpio, phandle_t node)
{
int pincaps;
device_t dev;
const char *cd_mode_str;
dev = gpio->dev;
/*
* If the device is flagged as non-removable, set that slot option, and
* set a flag to make sdhci_fdt_gpio_get_present() always return true.
*/
if (OF_hasprop(node, "non-removable")) {
gpio->slot->opt |= SDHCI_NON_REMOVABLE;
gpio->cd_disabled = true;
if (bootverbose)
device_printf(dev, "Non-removable media\n");
return;
}
/*
* If there is no cd-gpios property, then presumably the hardware
* PRESENT_STATE register and interrupts will reflect card state
* properly, and there's nothing more for us to do. Our get_present()
* will return sdhci_generic_get_card_present() because cd_pin is NULL.
*
* If there is a property, make sure we can read the pin.
*/
if (gpio_pin_get_by_ofw_property(dev, node, "cd-gpios", &gpio->cd_pin))
return;
if (gpio_pin_getcaps(gpio->cd_pin, &pincaps) != 0 ||
!(pincaps & GPIO_PIN_INPUT)) {
device_printf(dev, "Cannot read card-detect gpio pin; "
"setting card-always-present flag.\n");
gpio->cd_disabled = true;
return;
}
if (OF_hasprop(node, "cd-inverted"))
gpio->cd_inverted = true;
/*
* If the pin can trigger an interrupt on both rising and falling edges,
* we can use it to detect card presence changes. If not, we'll request
* card presence polling instead of using interrupts.
*/
if (!(pincaps & GPIO_INTR_EDGE_BOTH)) {
if (bootverbose)
device_printf(dev, "Cannot configure "
"GPIO_INTR_EDGE_BOTH for card detect\n");
goto without_interrupts;
}
/*
* Create an interrupt resource from the pin and set up the interrupt.
*/
if ((gpio->cd_ires = gpio_alloc_intr_resource(dev, &gpio->cd_irid,
RF_ACTIVE, gpio->cd_pin, GPIO_INTR_EDGE_BOTH)) == NULL) {
if (bootverbose)
device_printf(dev, "Cannot allocate an IRQ for card "
"detect GPIO\n");
goto without_interrupts;
}
if (bus_setup_intr(dev, gpio->cd_ires, INTR_TYPE_BIO | INTR_MPSAFE,
NULL, cd_intr, gpio, &gpio->cd_ihandler) != 0) {
device_printf(dev, "Unable to setup card-detect irq handler\n");
gpio->cd_ihandler = NULL;
goto without_interrupts;
}
without_interrupts:
/*
* If we have a readable gpio pin, but didn't successfully configure
* gpio interrupts, ask the sdhci driver to poll from a callout.
*/
if (gpio->cd_ihandler == NULL) {
cd_mode_str = "polling";
gpio->slot->quirks |= SDHCI_QUIRK_POLL_CARD_PRESENT;
} else {
cd_mode_str = "interrupts";
}
if (bootverbose) {
device_printf(dev, "Card presence detect on %s pin %u, "
"configured for %s.\n",
device_get_nameunit(gpio->cd_pin->dev), gpio->cd_pin->pin,
cd_mode_str);
}
}
