Call onboard_hub_create/destroy_pdevs() from _probe()/_remove()
to create/destroy platform devices for onboard USB hubs that may
be connected to the root hub of the controller. These functions
are a NOP unless CONFIG_USB_ONBOARD_HUB=y/m.
Also add a field to struct xhci_hcd to keep track of the onboard hub
platform devices that are owned by the xHCI.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Link: https://lore.kernel.org/r/20210609150159.v12.4.I7a3a7d9d2126c34079b1cab87aa0b2ec3030f9b7@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
config USB_XHCI_PLATFORM
tristate "Generic xHCI driver for a platform device"
select USB_XHCI_RCAR if ARCH_RENESAS
+ depends on USB_ONBOARD_HUB || !USB_ONBOARD_HUB
help
Adds an xHCI host driver for a generic platform device, which
provides a memory space and an irq.
#include <linux/of.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
+#include <linux/usb/onboard_hub.h>
#include <linux/usb/phy.h>
#include <linux/slab.h>
#include <linux/acpi.h>
*/
pm_runtime_forbid(&pdev->dev);
+ INIT_LIST_HEAD(&xhci->onboard_hub_devs);
+ onboard_hub_create_pdevs(hcd->self.root_hub, &xhci->onboard_hub_devs);
+
return 0;
usb_remove_hcd(hcd);
usb_put_hcd(shared_hcd);
+ onboard_hub_destroy_pdevs(&xhci->onboard_hub_devs);
+
clk_disable_unprepare(clk);
clk_disable_unprepare(reg_clk);
usb_put_hcd(hcd);
struct dentry *debugfs_slots;
struct list_head regset_list;
+ struct list_head onboard_hub_devs;
+
void *dbc;
/* platform-specific data -- must come last */
unsigned long priv[] __aligned(sizeof(s64));