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While system resume, the connected udev as B-device may not has been resumed,
if HNP polling request is sent to it, HNP polling may fail, this patch adds
check of the udev state to make sure it finished resume and to be configured
state before sending host request message, otherwise try next HNP polling
request.
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
(cherry picked from commit 2cff5eb7bd4feb70cd28ac4655e7433e57a17938)
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peripheral
We should signal connect (pull up dp) after we have already
at peripheral mode, otherwise, the dp may be toggled due to
we reset controller or do disconnect during the initialization
for peripheral, then, the host may be confused during the
enumeration, eg, it finds the reset can't succeed, but the
device is still there, see below error message.
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 1 port detected
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: cannot reset port 1 (err = -32)
hub 1-0:1.0: Cannot enable port 1. Maybe the USB cable is bad?
hub 1-0:1.0: unable to enumerate USB device on port 1
Signed-off-by: Peter Chen <peter.chen@freescale.com>
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flag is set
The A-device is required to set this feature and suspend the bus within
THOST_REQ_SUSP when it determines that the B-device wishes to become host
(host_req_flag = TRUE). So this patch does this if host request flag is set
and a_set_b_hnp_en has not been set.
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
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This patch clear host_request_flag when leaves peripheral state, instead of
entering host state, this can make sure this flag can be cleared after try
to do role switch, no matter the role switch succeeds or not.
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch adds OTG status selector request sending function, can be used
to poll peripheral if it wants to be host.
Signed-off-by: Li Jun <b47624@freescale.com>
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This patch starts HNP polling timer when otg is set to be a_host
or b_host.
Signed-off-by: Li Jun <b47624@freescale.com>
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Before using the PHY framework instead of the USB PHY one, we need to
move the OTG state into another place, since it won't be available when
USB PHY isn't used. This patch moves the OTG state into the OTG
structure, and makes all the needed modifications in the drivers
using the OTG state.
[ balbi@ti.com : fix build regressions with phy-tahvo.c, musb_dsps.c,
phy-isp1301-omap, and chipidea's debug.c ]
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
(cherry picked from commit e47d92545c2972bcf3711e7db80f481e402163c7)
Conflicts:
drivers/usb/musb/musb_gadget.c
drivers/usb/phy/phy-msm-usb.c
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The TPL (Targeted Peripheral List) is used for targeted hosts
(non-PC hosts), and it can be used at USB OTG & EH certification
and some specific products which need white list.
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since usb otg fsm implementation is not related to usb phy.
We move it from usb/phy/ to usb/common/, and rename it to
reflect its real meaning.
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Since we will have more usb-common things, and it will let
usb-common.c be larger and larger, we create a folder named usb/common
for all usb common things.
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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