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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 <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This file is mainly used to access otgsc currently, it may
add otg related things in the future.
Tested-by: Marek Vasut <[email protected]>
Signed-off-by: Peter Chen <[email protected]>
Signed-off-by: Alexander Shishkin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Fix the following build warnings on x86:
drivers/usb/chipidea/core.c: In function 'hw_phymode_configure':
drivers/usb/chipidea/core.c:226:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
drivers/usb/chipidea/core.c:230:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
drivers/usb/chipidea/core.c:243:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
drivers/usb/chipidea/core.c:246:3: warning: large integer implicitly truncated to unsigned type [-Woverflow]
Reported-by: Felipe Balbi <[email protected]>
Signed-off-by: Fabio Estevam <[email protected]>
Signed-off-by: Alexander Shishkin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This patch makes it possible to configure the PTW, PTS and STS bits
inside the portsc register for host and device mode before the driver
starts and the phy can be addressed as hardware implementation is
designed.
Signed-off-by: Michael Grzeschik <[email protected]>
Signed-off-by: Marc Kleine-Budde <[email protected]>
Signed-off-by: Sascha Hauer <[email protected]>
Signed-off-by: Alexander Shishkin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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This adds EHCI host support to the chipidea driver. We want it to be
part of the hdrc driver and not a standalone (sub-)driver module, as
the structure of ehci-hcd.c suggests, so for chipidea controller we
hack it to not provide platform-related code, but only the ehci hcd.
The ehci-platform driver won't work for us here too, because the
controller uses the same registers for both device and host mode and
also otg-related bits, so it's not really possible to put ehci registers
into a separate resource.
This is not a pretty solution, but the alternative is exporting symbols
from the chipidea driver to a ehci-chipidea driver and doing all the
module refcounting.
Signed-off-by: Alexander Shishkin <[email protected]>
Cc: Alan Stern <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Some of the bits of USBMODE register are defined in <usb/ehci_def.h>,
use them instead of having our own definitions.
Signed-off-by: Alexander Shishkin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Add some generic code for roles and implement simple role switching
based on ID pin state and/or a sysfs file. At this, we also rename
the device to ci_hdrc, which is what it is.
The "manual" switch is made into a sysfs file and not debugfs, because
it might be useful even in non-debug context. For some boards, like
sheevaplug, it seems to be the only way to switch roles without modifying
the hardware, since the ID pin is always grounded.
Signed-off-by: Alexander Shishkin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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Split the driver into the following parts:
* core -- resources, register access, capabilities, etc;
* udc -- device controller functionality;
* debug -- logging events.
Signed-off-by: Alexander Shishkin <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
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