linux.git/drivers/usb/dwc2/core.c, branch v4.2

usb: dwc2: embed storage for reg backup in struct dwc2_hsotg

2015-07-06T17:34:08+00:00

Register backup function can be called from atomic context. Instead
of using atomic memory pool, embed backup storage space in
struct dwc2_hsotg.

Also add a valid flag in each struct as NULL pointer can't be used as
the content validity check any more.

Acked-by: John Youn 
Tested-by: Heiko Stuebner 
Tested-by: Doug Anderson 
Signed-off-by: Mian Yousaf Kaukab 
Signed-off-by: Felipe Balbi

usb: dwc2: add hibernation core parameter

2015-04-29T20:20:17+00:00

dwc2 may not be able to exit from hibernation if the hardware
does not provide a way to detect resume signalling in this state.
Thus, add the possibility to disable hibernation feature.

Acked-by: John Youn 
Signed-off-by: Gregory Herrero 
Signed-off-by: Felipe Balbi

usb: dwc2: remove dwc2_platform.ko

2015-04-29T20:20:11+00:00

As dwc2 pci module is now exporting dwc2 platform device, include
platform.o in dwc2-y and remove USB_DWC2_PLATFORM configuration
option. Driver will be built as two modules, dwc2.ko and dwc2_pci.ko.
dwc2.ko is the new platform driver.

Remove all EXPORT_SYMBOL_GPL as they are not needed any more.

Acked-by: John Youn 
Signed-off-by: Mian Yousaf Kaukab 
Signed-off-by: Felipe Balbi

usb: dwc2: set parameter values in probe function

2015-04-29T20:19:02+00:00

So the parameters can be used in both host and gadget modes.
Also consolidate param functions in the core.h

Acked-by: John Youn 
Signed-off-by: Mian Yousaf Kaukab 
Signed-off-by: Felipe Balbi

usb: dwc2: add external_id_pin_ctl core parameter

2015-04-29T20:18:55+00:00

This is required due to an Intel specific hardware issue. Where id-
pin setup causes glitches on the interrupt line when CONIDSTSCHG
interrupt is enabled.

Specify external_id_pin_ctl when an external driver (for example phy)
can handle id change, so that CONIDSTSCHG interrupt can be disabled
from the controller.

Acked-by: John Youn 
Signed-off-by: Gregory Herrero 
Signed-off-by: Felipe Balbi

usb: dwc2: add controller hibernation support

2015-04-29T20:18:37+00:00

When suspending usb bus, phy driver may disable controller power.
In this case, registers need to be saved on suspend and restored
on resume.

Acked-by: John Youn 
Signed-off-by: Gregory Herrero 
Signed-off-by: Felipe Balbi

usb: dwc2: Fixed a few typos in comments

2015-01-12T18:13:24+00:00

Fixed 3 typos in comments

Signed-off-by: Mickael Maison 
Signed-off-by: Felipe Balbi

usb: dwc2: Update common interrupt handler to call gadget interrupt handler

2014-11-14T20:59:48+00:00

Make dwc2_handle_common_intr call the gadget interrupt function when operating
in peripheral mode. Remove the spinlock functions in s3c_hsotg_irq as
dwc2_handle_common_intr() already has the spinlocks.

Move the registeration of the IRQ to common code for platform and PCI.

Remove duplicate interrupt conditions that was in gadget, as those are handled
by dwc2 common interrupt handler.

Acked-by: Paul Zimmerman 
Signed-off-by: Dinh Nguyen 
Signed-off-by: Felipe Balbi

usb: dwc2: clip max_transfer_size to 65535

2014-09-19T23:17:58+00:00

Clip max_transfer_size to 65535 for host. dwc2_hc_setup_align_buf()
allocates coherent buffers with this size, and if it's too large we
can exhaust the coherent DMA pool.

Tested on Raspberry Pi and Altera SOCFPGA.

Signed-off-by: Paul Zimmerman 
Signed-off-by: Greg Kroah-Hartman

usb: dwc2: add 'mode' which based on Kconfig select or dts setting

2014-09-08T22:43:28+00:00

According to the "dr_mode", the otg controller can work as
device role and host role. Some boards always want to use host mode
and some other boards want to use gadget mode. We use the dts setting
to set dwc2's mode, rather than fixing it to whatever hardware says.

Signed-off-by: Kever Yang 
Acked-by: Paul Zimmerman 
Tested-by: Doug Anderson 
Signed-off-by: Greg Kroah-Hartman