[PATCH V2 0/1] usb: add HCD providers

["Rafał Miłecki" <zajec5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Hi again,

This is my second try of getting HCD providers into usb subsystem.

During discussion of V1 I realized there are about 26 drivers adding a
single HCD and all of them would need to be modified. So instead I
decided to put relevant code in usb_add_hcd. It checks if the HCD we
register is a primary one and if so, it registers a proper provider.

Please note that of_hcd_xlate_simple was also extended to allow getting
shared HCD (which is used e.g. in case of XHCI).

So now you can have something like:

ohci: ohci@21000 {
	#usb-cells = <0>;
	compatible = "generic-ohci";
	reg = <0x00001000 0x1000>;
	interrupts = <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>;
};

ehci: ehci@22000 {
	#usb-cells = <0>;
	compatible = "generic-ehci";
	reg = <0x00002000 0x1000>;
	interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
};

xhci: xhci@23000 {
	#usb-cells = <1>;
	compatible = "generic-xhci";
	reg = <0x00003000 0x1000>;
	interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
};

The last (second) patch is not supposed to be applied, it's used only as
a proof and example of how providers can be used.

Rafał Miłecki (1):
  usb: core: add support for HCD providers

 drivers/usb/core/Makefile     |  1 +
 drivers/usb/core/hcd.c        |  8 ++++
 drivers/usb/core/provider.c   | 99 +++++++++++++++++++++++++++++++++++++++++++
 include/dt-bindings/usb/usb.h |  7 +++
 include/linux/usb/hcd.h       |  2 +
 include/linux/usb/provider.h  | 39 +++++++++++++++++
 6 files changed, 156 insertions(+)
 create mode 100644 drivers/usb/core/provider.c
 create mode 100644 include/dt-bindings/usb/usb.h
 create mode 100644 include/linux/usb/provider.h

-- 
1.8.4.5

--
To unsubscribe from this list: send the line "unsubscribe devicetree" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html