This patch series replace the previous Query Request and NOP patches:
[PATCH 1/8] scsi: ufs: add support for query
[PATCH 6/8] scsi: ufs: Add support for sending NOP OUT UPIU
[PATCH 7/8] scsi: ufs: Set fDeviceInit flag to initiate device initialization
Major difference -
Sending the query
As part of device initialization sequence, sending NOP OUT UPIU and
waiting for NOP IN UPIU response is mandatory. This confirms that the
device UFS Transport (UTP) layer is functional and the host can configure
the device with further commands. Add support for sending NOP OUT UPIU to
check the
From: Dolev Raviv dra...@codeaurora.org
Allow UFS device to complete its initialization and accept
SCSI commands by setting fDeviceInit flag. The device may take
time for this operation and hence the host should poll until
fDeviceInit flag is toggled to zero. This step is mandated by
UFS device
There is a possible race condition in the hardware when the abort
command is issued to terminate the ongoing SCSI command as described
below:
- A bit in the door-bell register is set in the controller for a
new SCSI command.
- In some rare situations, before controller get a chance to issue
Background operations in the UFS device can be disabled by
the host to reduce the response latency of transfer requests.
Add support for enabling/disabling the background operations
during runtime suspend/resume of the device.
If the device is in critical need of BKOPS it will raise an
The first patch fixes many issues with current task management handling
in UFSHCD driver. Others improve error handling in various scenarios.
These patches depends on:
[PATCH V3 1/2] scsi: ufs: Add support for sending NOP OUT UPIU
[PATCH V3 2/2] scsi: ufs: Set fDeviceInit flag to initiate device
As of now SCSI initiated error handling is broken because,
the reset APIs don't try to bring back the device initialized and
ready for further transfers.
In case of timeouts, the scsi error handler takes care of handling aborts
and resets. Improve the error handling in such scenario by resetting
Currently, sending Task Management (TM) command to the card might
be broken in some scenarios as listed below:
Problem: If there are more than 8 TM commands the implementation
returns error to the caller.
Fix: Wait for one of the slots to be emptied and send the command.
Problem:
Add runtime PM helpers to suspend/resume UFS controller at runtime.
Enable runtime PM by default for pci and platform drivers as the
initialized hardware can suspend if it is not used after bootup.
Signed-off-by: Sujit Reddy Thumma sthu...@codeaurora.org
---
drivers/scsi/ufs/ufshcd-pci.c|
Error handling in UFS driver is broken and resets the host controller
for fatal errors without re-initialization. Correct the fatal error
handling sequence according to UFS Host Controller Interface (HCI)
v1.1 specification.
o Upon determining fatal error condition the host controller may hang
Tested-by: Maya Erez me...@codeaurora.org
From: Dolev Raviv dra...@codeaurora.org
Allow UFS device to complete its initialization and accept
SCSI commands by setting fDeviceInit flag. The device may take
time for this operation and hence the host should poll until
fDeviceInit flag is
Tested-by: Maya Erez me...@codeaurora.org
As part of device initialization sequence, sending NOP OUT UPIU and
waiting for NOP IN UPIU response is mandatory. This confirms that the
device UFS Transport (UTP) layer is functional and the host can configure
the device with further commands. Add
Tested-by: Maya Erez me...@codeaurora.org
Background operations in the UFS device can be disabled by
the host to reduce the response latency of transfer requests.
Add support for enabling/disabling the background operations
during runtime suspend/resume of the device.
If the device is in
Tested-by: Maya Erez me...@codeaurora.org
Add runtime PM helpers to suspend/resume UFS controller at runtime.
Enable runtime PM by default for pci and platform drivers as the
initialized hardware can suspend if it is not used after bootup.
Signed-off-by: Sujit Reddy Thumma
Tested-by: Maya Erez me...@codeaurora.org
There is a possible race condition in the hardware when the abort
command is issued to terminate the ongoing SCSI command as described
below:
- A bit in the door-bell register is set in the controller for a
new SCSI command.
- In some rare
Tested-by: Maya Erez me...@codeaurora.org
Currently, sending Task Management (TM) command to the card might
be broken in some scenarios as listed below:
Problem: If there are more than 8 TM commands the implementation
returns error to the caller.
Fix: Wait for one of the slots
Tested with error injection.
Tested-by: Maya Erez me...@codeaurora.org
As of now SCSI initiated error handling is broken because,
the reset APIs don't try to bring back the device initialized and
ready for further transfers.
In case of timeouts, the scsi error handler takes care of handling
Tested with error injection.
Tested-by: Maya Erez me...@codeaurora.org
Error handling in UFS driver is broken and resets the host controller
for fatal errors without re-initialization. Correct the fatal error
handling sequence according to UFS Host Controller Interface (HCI)
v1.1
From: Ivan T. Ivanov iiva...@mm-sol.com
Changes since first version.
* Extend commit messages a little bit.
Following patches make initial cleanup of usb phy found in the Qualcomm
chipsets. Changes include:
* Build time error fix.
* Move driver to Managed Device Resource allocation.
* Checkpatch
From: Ivan T. Ivanov iiva...@mm-sol.com
This patch move global regulators variables to driver state
structire and move allocation of the regulators to be devm managed.
Signed-off-by: Ivan T. Ivanov iiva...@mm-sol.com
---
drivers/usb/phy/phy-msm-usb.c | 111
From: Ivan T. Ivanov iiva...@mm-sol.com
Use managed device resources to clean up the probe/remove
and get DT support for free.
Signed-off-by: Ivan T. Ivanov iiva...@mm-sol.com
---
drivers/usb/phy/phy-msm-usb.c | 78 +++--
1 file changed, 20 insertions(+),
From: Ivan T. Ivanov iiva...@mm-sol.com
Signed-off-by: Ivan T. Ivanov iiva...@mm-sol.com
---
drivers/usb/phy/phy-msm-usb.c | 99 ++---
1 file changed, 52 insertions(+), 47 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c
From: Ivan T. Ivanov iiva...@mm-sol.com
This fixes checkpatch.pl warnings.
Signed-off-by: Ivan T. Ivanov iiva...@mm-sol.com
---
drivers/usb/phy/phy-msm-usb.c | 33 +++--
1 file changed, 11 insertions(+), 22 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c
From: Ivan T. Ivanov iiva...@mm-sol.com
This fixes checkpatch.pl warnings.
Signed-off-by: Ivan T. Ivanov iiva...@mm-sol.com
---
drivers/usb/phy/phy-msm-usb.c |6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/phy/phy-msm-usb.c
From: Ivan T. Ivanov iiva...@mm-sol.com
This patch fix compilation error and is an intermediate step
before the addition of DeviceTree support for newer targets.
Fix suggested here: https://lkml.org/lkml/2013/6/19/381
Cc: David Brown dav...@codeaurora.org
Cc: Daniel Walker dwal...@fifo99.com
Cc:
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