static int m7400_attrib_write(struct device *dev, int value)
{
struct tegra_bb_pdata *pdata;
static struct platform_device *ehci_device;
static bool first_enum = true;
if (value > 1 || (!ehci_registered && !value)) {
/* Supported values are 0/1. */
return -1;
}
pdata = (struct tegra_bb_pdata *) dev->platform_data;
if (value) {
/* Check readiness for enumeration */
if (first_enum)
first_enum = false;
else
m7400_enum_handshake();
/* Register ehci controller */
ehci_device = pdata->ehci_register();
if (ehci_device == NULL) {
pr_info("%s - Error: ehci register failed.\n",
__func__);
return -1;
}
/* Customize PHY setup/callbacks */
m7400_ehci_customize(ehci_device);
ehci_registered = true;
} else {
/* Unregister ehci controller */
if (ehci_device != NULL)
pdata->ehci_unregister(&ehci_device);
/* Signal AP going down */
m7400_apdown_handshake();
ehci_registered = false;
}
return 0;
}
static void m7400_l3_suspend(void)
{
m7400_apdown_handshake();
modem_status = BBSTATE_L3;
}
static void m7400_l3_suspend(void)
{
m7400_apdown_handshake();
}