Hi Thomas,
On 30/03/15 16:15, Roger Quadros wrote:
Without this system suspend is broken on systems that have
drivers calling enable/disable_irq_wake() for interrupts based off
the dummy irq hook.
(e.g. drivers/gpio/gpio-pcf857x.c)
http://article.gmane.org/gmane.linux.kernel/1879035
we need to unlock the usb_lock mutex before calling
usb_otg_register_gadget() else it will cause a
circular locking dependency.
Signed-off-by: Roger Quadros rog...@ti.com
---
drivers/usb/gadget/udc/udc-core.c | 13 +++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git
We need to differentiat between otg and dual-role operation.
dual-role means capability to operate as host or device depending
on the ID pin status but no support for any of the OTG features
like SRP, HNP and on the fly role-swap.
The only way to change the role for a dual-role device is to
Register with the USB OTG core. Since we don't support
OTG yet we just work as a dual-role device even
if device tree says otg.
Use extcon framework to get VBUS/ID cable events and
kick the OTG state machine.
Signed-off-by: Roger Quadros rog...@ti.com
---
drivers/usb/dwc3/core.c | 146
Now that we have dual-role support working at USB core,
enable dual-role support for usb1 controller.
Signed-off-by: Roger Quadros rog...@ti.com
---
arch/arm/boot/dts/dra7-evm.dts | 2 +-
arch/arm/boot/dts/dra72-evm.dts | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git
If usb/otg-fsm.h and usb/composite.h are included together
then it results in the build warning [1].
Prevent that by moving the VDBG defination into the
usb-otg-fsm.c file where it is used.
Also get rid of MPC_LOC which doesn't seem to be used
by anyone.
[1] - warning fixed by this patch:
DRD mode is a reduced functionality OTG mode. In this mode
we don't support SRP, HNP and dynamic role-swap.
In DRD operation, the controller mode (Host or Peripheral)
is decided based on the ID pin status. Once a cable plug (Type-A
or Type-B) is attached the controller selects the state
and
Register with OTG core when gadget function driver
is available and unregister when function driver is unbound.
Ignore softconnect sysfs control when we're in OTG
mode as OTG FSM takes care of gadget softconnect using
the b_bus_req mechanism.
Signed-off-by: Roger Quadros rog...@ti.com
---
struct otg_fsm is the interface to the OTG state machine.
Document the input, output and internal state variables.
Definations are taken from Table 7-2 and Table 7-4 of
the USB OTG EH Specification Rev.2.0
Re-arrange some of the members as per use case for more
clarity.
Signed-off-by: Roger
This is the a_set_b_hnp_enable flag in the OTG state machine
diagram and must be set when the A-Host has successfully set
the b_hnp_enable feature of the OTG-B-Peripheral attached to it.
When this bit changes we kick our OTG FSM to make note of the
change and act accordingly.
Signed-off-by:
This is an attempt to centralize OTG/Dual-role functionality in the kernel.
As of now I've got Dual-role functionality working pretty reliably on
dra7-evm. xhci side of things for OTG/DRD use are fixed in
http://thread.gmane.org/gmane.linux.kernel/1923161
Changelog:
-
v2
- Use
The OTG core instantiates the OTG Finite State Machine
per OTG controller and manages starting/stopping the
host and gadget controllers based on the bus state.
It provides APIs for the following tasks
- Registering an OTG capable controller
- Registering Host and Gadget controllers to OTG core
-
Move the state_changed variable into struct otg_fsm
so that we can support multiple instances.
Signed-off-by: Roger Quadros rog...@ti.com
---
drivers/usb/common/usb-otg-fsm.c | 10 --
include/linux/usb/otg-fsm.h | 1 +
2 files changed, 5 insertions(+), 6 deletions(-)
diff --git
The OTG state machine needs a mechanism to start and
stop the gadget controller. Add usb_gadget_start()
and usb_gadget_stop().
Signed-off-by: Roger Quadros rog...@ti.com
---
drivers/usb/gadget/udc/udc-core.c | 74 +++
include/linux/usb/gadget.h| 3 ++
The existing usb_add/remove_hcd() functionality
remains unchanged for non-OTG devices. For OTG
devices they only register the HCD with the OTG core.
Introduce _usb_add/remove_hcd() for use by OTG core.
These functions actually add/remove the HCD.
Signed-off-by: Roger Quadros rog...@ti.com
---
Most users of PM clocks do the exact same thing in runtime callbacks.
Provide default callbacks and cleanup the existing users
(keystone/davinci/omap1/sh)
Rajendra Nayak (5):
PM / clock_ops: Provide default runtime ops to users
arm: keystone: remove boilerplate code and use
Most users of PM clocks do the extact same things in the runtime
suspend/resume callbacks. Provide them USE_PM_CLK_RUNTIME_OPS so
as to avoid/remove boilerplate code.
Signed-off-by: Rajendra Nayak rna...@codeaurora.org
---
drivers/base/power/clock_ops.c | 38
USE_PM_CLK_RUNTIME_OPS is introduced so we don't repeat the same code
to do runtime_suspend and runtime_resume across users of PM clocks.
Use it to remove the boilerplate code.
Signed-off-by: Rajendra Nayak rna...@codeaurora.org
---
arch/arm/mach-keystone/pm_domain.c | 33
On Tue, Mar 17, 2015 at 06:41:51PM -0700, Tony Lindgren wrote:
Yeah agreed. I suggest discussing the binding and the generic
parsing code for it first :)
It seems with the generic binding the actual driver should be
just the hardware specific code hopefully.
Did this thread go anywhere in
Hi Roger,
On 14/04/2015 12:13, Roger Quadros wrote:
Hi Thomas,
On 30/03/15 16:15, Roger Quadros wrote:
Without this system suspend is broken on systems that have
drivers calling enable/disable_irq_wake() for interrupts based off
the dummy irq hook.
(e.g. drivers/gpio/gpio-pcf857x.c)
USE_PM_CLK_RUNTIME_OPS is introduced so we don't repeat the same code
to do runtime_suspend and runtime_resume across users of PM clocks.
Use it to remove the boilerplate code.
Signed-off-by: Rajendra Nayak rna...@codeaurora.org
---
drivers/sh/pm_runtime.c | 47
USE_PM_CLK_RUNTIME_OPS is introduced so we don't repeat the same code
to do runtime_suspend and runtime_resume across users of PM clocks.
Use it to remove the boilerplate code.
Signed-off-by: Rajendra Nayak rna...@codeaurora.org
---
arch/arm/mach-omap1/pm_bus.c | 37
USE_PM_CLK_RUNTIME_OPS is introduced so we don't repeat the same code
to do runtime_suspend and runtime_resume across users of PM clocks.
Use it to remove the boilerplate code.
Signed-off-by: Rajendra Nayak rna...@codeaurora.org
---
arch/arm/mach-davinci/pm_domain.c | 32
Hello Russell,
On 13-04-15 23:35, Russell King - ARM Linux wrote:
On Mon, Apr 13, 2015 at 09:28:09AM -0700, Tony Lindgren wrote:
* Tony Lindgren t...@atomide.com [150413 07:46]:
If what Russell and I are saying is correct, with the above two
patches your system should behave properly with
Greetings,
I have developed an AM3354 based SoM and it uses an external SI5351 clock
generator to drive the clock inputs for an external duart and I2S audio
master clock. With the registration according to the documentation the
reference clock is not being detected and hence the clock generator
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