linux.git/drivers/usb/chipidea/core.c, branch v3.13

usb: chipidea: fix nobody cared IRQ when booting with host role

2013-12-09T21:14:12+00:00

If we connect Male-A-To-Male-A cable between otg-host and host pc,
the ci->vbus_active is set wrongly, and cause the controller run
at peripheral mode when we load gadget module (ci_udc_start will be run),
but the software runs at host mode due to id = 0. The ehci_irq
can't handle suspend (USBi_SLI) interrupt which is enabled for
peripheral mode, it causes no one will handle irq error.

This patch is needed for 3.12 stable

Cc: stable 
Acked-by: Michael Grzeschik 
Reported-by: Marc Kleine-Budde 
Tested-by: Marc Kleine-Budde 
Signed-off-by: Marc Kleine-Budde 
Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: only get vbus regulator for non-peripheral mode

2013-10-30T16:41:49+00:00

If the user chooses peripheral mode for this controller, the vbus
regulator doesn't need to get, since the host will supply the vbus,
it can save one vbus pin for other usage.

Signed-off-by: Peter Chen 
Tested-by: Frank Li 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: add ci_hdrc_enter_lpm API

2013-10-01T01:54:07+00:00

This API is used to let the PHY enter/leave low power mode.
Before the controller going to work(at probe/resume), it needs to let
the PHY leave low power mode.
After the controller stopping working(at remove/suspend), it needs to
let the PHY enter low power mode to save power consumption.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: move PHY operation to core

2013-10-01T01:54:06+00:00

PHY operations are common, so move them to core.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

Merge 3.12-rc3 into usb-next

2013-09-30T01:45:55+00:00

We want the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman

usb: chipidea: Fix memleak for ci->hw_bank.regmap when removal

2013-09-26T00:30:29+00:00

It needs to free ci->hw_bank.regmap explicitly since it is not managed
resource.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: move platform related things to ci_get_platdata

2013-09-26T00:23:27+00:00

Like vbus, the dr_mode and phy_mode are also got from glue layer's
platform data or device node.

Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: add wait vbus lower than OTGSC_BSV before role starts

2013-08-14T19:37:20+00:00

When the gadget role starts, we need to make sure the vbus is lower
than OTGSC_BSV, or there will be an vbus interrupt since we use
B_SESSION_VALID as vbus interrupt to indicate connect and disconnect.
When the host role starts, it may not be useful to wait vbus to lower
than OTGSC_BSV, but it can indicate some hardware problems like the
vbus is still higher than OTGSC_BSV after we disconnect to host some
time later (5000 milliseconds currently), which is obvious not correct.

Tested-by: Marek Vasut 
Signed-off-by: Peter Chen 
Signed-off-by: Alexander Shishkin 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: add vbus interrupt handler

2013-08-14T19:37:20+00:00

We add vbus interrupt handler at ci_otg_work, it uses OTGSC_BSV(at otgsc)
to know it is connect or disconnet event.
Meanwhile, we introduce two flags id_event and b_sess_valid_event to
indicate it is an id interrupt or a vbus interrupt.

Tested-by: Marek Vasut 
Signed-off-by: Peter Chen 
Signed-off-by: Alexander Shishkin 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: move otg related things to otg file

2013-08-14T19:37:19+00:00

Move otg related things to otg file.

Tested-by: Marek Vasut 
Signed-off-by: Peter Chen 
Signed-off-by: Alexander Shishkin 
Signed-off-by: Greg Kroah-Hartman