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There is 2s delay for controller resume from usb wakeup case already,
in OTG fsm mode, A-dev can start a new session via sys input file(means
not via usb wakeup), in this case, A-dev still need the 2s delay for
host root hub access registers, otherwise system will hang due to access
register at low power mode.
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch adds support for system resume from power lost in otg fsm mode.
Signed-off-by: Li Jun <b47624@freescale.com>
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We add vbus glitch handling for both BSV rise and drop interruptes.
If it is a vbus glitch (higher than BSV but cannot reach AVV), ignore it.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch sets host request flag with sys input when a A device
sets a_bus_req or a B device sets b_bus_req as peripheral role.
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch adds HNP polling support for chipidea otg fsm driver, which
adds a SW timer to send HNP polling request.
Signed-off-by: Li Jun <b47624@freescale.com>
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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 <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit c8b188d2900a7a9c833f67585cc11e47b47ad6b2)
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This patch enables runtime pm support for otg fsm mode.
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch adds usb charger notify condition when usb otg fsm
is enabled, do not do charger notify when doing role switch.
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch adds sys input to control and show OTG fsm inputs by application,
user can do host and preipheral role switch by change these inputs.
Signed-off-by: Li Jun <b47624@freescale.com>
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USB OTG interrupt handling and fsm transitions according to USB OTG
and EH 2.0.
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch adds OTG fsm timers initialization, which use controller's 1ms
interrupt as timeout counter, also adds some local timers which are not
in otg_fsm_timer list.
Signed-off-by: Li Jun <b47624@freescale.com>
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Add OTG HNP and SRP operation functions implementation:
- charge vbus
- drive vbus
- connection signaling
- drive sof
- start data pulse
- add fsm timer
- delete fsm timer
- start host
- start gadget
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch adds OTG fsm related initialization when do otg init,
add a seperate file for OTG fsm related utilities.
Signed-off-by: Li Jun <b47624@freescale.com>
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