linux.git/drivers/usb/chipidea/core.c, branch v3.12

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: 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

usb: chipidea: disable all interrupts and clear all interrupts status

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

During the initialization, it needs to disable all interrupts
enable bit as well as clear all interrupts status bits to avoid
exceptional interrupt.

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

usb: chipidea: add flag CI_HDRC_DUAL_ROLE_NOT_OTG

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

Since we need otgsc to know vbus's status at some chipidea
controllers even it is peripheral-only mode. Besides, some
SoCs (eg, AR9331 SoC) don't have otgsc register even
the DCCPARAMS_DC and DCCPARAMS_HC are both 1 at CAP_DCCPARAMS.

We inroduce flag CI_HDRC_DUAL_ROLE_NOT_OTG to indicate if the
controller is dual role, but not supports OTG. If this flag is
not set, we follow the rule that if DCCPARAMS_DC and DCCPARAMS_HC
are both 1 at CAP_DCCPARAMS, then this controller is otg capable.

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

usb: chipidea: add role init and destroy APIs

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

- The role's init will be called at probe procedure.
- The role's destroy will be called at fail patch
at probe and driver's removal.
- The role's start/stop will be called when specific
role has started.

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

usb: chipidea: otg: add otg file used to access otgsc

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

This file is mainly used to access otgsc currently, it may
add otg related things in the future.

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

usb: chipidea: move vbus regulator operation to core

2013-08-14T19:34:17+00:00

The vbus regulator is a common element for USB vbus operation,
So, move it from glue layer to core.

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

usb: chipidea: remove previous MODULE_ALIAS

2013-08-14T19:34:16+00:00

After the rename to ci_hdrc we ended up with two MODULE_ALIAS entries, so
remove the old one.

Signed-off-by: Fabio Estevam 
Reviewed-by: Peter Chen 
Signed-off-by: Alexander Shishkin 
Signed-off-by: Greg Kroah-Hartman