linux.git/drivers/usb/chipidea/core.c, branch v3.17

usb: chipidea: using one inline function to cover queue work operations

2014-05-23T02:35:02+00:00

The otg queue work include operations: one is disable interrupt,
another one is call kernel queue work API. Many codes do this
operation, using one inline function to instead of them.

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

usb: chipidea: update TODO list

2014-05-23T02:35:01+00:00

Update TODO list

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

usb: chipidea: OTG HNP and SRP fsm implementation

2014-04-24T19:56:35+00:00

USB OTG interrupt handling and fsm transitions according to USB OTG
and EH 2.0.

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

usb: chipidea: core: Add missing module owner field

2014-04-24T19:56:34+00:00

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

usb: chipidea: add proper delay for waiting correct PHY status

2014-04-24T19:56:34+00:00

After the PHY has powered and initialized, it needs some delay
for controller to reflect PHY's status. Some status and values
for id, vbus, dp/dm are only stable after this delay. The current
code tries to clear id/vbus status without enough delay, it
causes the status are not cleared properly.

This patch add 2ms delay after phy has initialized, and clear the
unexpected status after that.

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

usb: chipidea: export interrupt enable and status register read functions

2014-04-24T19:56:34+00:00

This patch moves usb interrupt enable and status register read functions
from udc driver to core driver to use them in all ci drivers.

Signed-off-by: Peter Chen 
Acked-by: Peter Chen 
Signed-off-by: Li Jun 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: operate on otgsc register in a general way

2014-04-24T19:56:34+00:00

Use a more general way to read and write otgsc register.

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

usb: chipidea: coordinate usb phy initialization for different phy type

2014-04-24T19:56:34+00:00

For internal PHY (like UTMI), the phy clock may from internal pll,
it is on/off on the fly, the access PORTSC.PTS will hang without
phy clock. So, the usb_phy_init which will open phy clock needs to
be called before hw_phymode_configure.
See: http://marc.info/?l=linux-arm-kernel&m=139350618732108&w=2

For external PHY (like ulpi), it needs to configure portsc.pts before
visit viewport, or the viewport can't be visited. so phy_phymode_configure
needs to be called before usb_phy_init.
See: cd0b42c2a6d2a74244f0053f8960f5dad5842278

It may not the best solution, but it can work for all situations.

Cc: Sascha Hauer 
Cc: Chris Ruehl 
Cc: shc_work@mail.ru
Cc: denis@eukrea.com
Cc: festevam@gmail.com
Signed-off-by: Peter Chen 
Signed-off-by: Greg Kroah-Hartman

usb: chipidea: Propagate the real error code on platform_get_irq() failure

2014-02-25T01:07:53+00:00

No need to return a 'fake' return value on platform_get_irq() failure.

Just return the error code itself instead.

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

usb: chipidea: udc: add maximum-speed = full-speed option

2014-02-25T01:07:52+00:00

This patch makes it possible to set the chipidea udc into full-speed only mode.
It is set by the oftree property "maximum-speed = full-speed".

Signed-off-by: Peter Chen 
Signed-off-by: Michael Grzeschik 
Signed-off-by: Marc Kleine-Budde 
Signed-off-by: Greg Kroah-Hartman