linux-toradex.git/drivers/scsi/ufs, branch v4.4.105

scsi: ufs: add capability to keep auto bkops always enabled

2017-11-21T08:21:20+00:00

[ Upstream commit 4e768e7645ec4ffa92ee163643777b261ae97142 ]

UFS device requires to perform bkops (back ground operations) periodically
but host can control (via auto-bkops parameter of device) when device can
perform bkops based on its performance requirements. In general, host
would like to enable the device's auto-bkops only when it's not doing any
regular data transfer but sometimes device may not behave properly if host
keeps the auto-bkops disabled. This change adds the capability to let the
device auto-bkops always enabled except suspend.

Reviewed-by: Sahitya Tummala 
Signed-off-by: Subhash Jadavani 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

scsi: ufs-qcom: Fix module autoload

2017-11-21T08:21:19+00:00

[ Upstream commit ab3dabb3e8cf077850f20610f73a0def1fed10cb ]

If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/scsi/ufs/ufs-qcom.ko | grep alias
$

After this patch:

$ modinfo drivers/scsi/ufs/ufs-qcom.ko | grep alias
alias:          of:N*T*Cqcom,ufshcC*
alias:          of:N*T*Cqcom,ufshc

Signed-off-by: Javier Martinez Canillas 
Reviewed-by: Subhash Jadavani 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

Merge tag '4.4-scsi-mkp' into misc

2015-11-12T12:06:18+00:00

SCSI queue for 4.4.

Signed-off-by: Martin K. Petersen

scsi: use host wide tags by default

2015-11-10T01:11:57+00:00

This patch changes the !blk-mq path to the same defaults as the blk-mq
I/O path by always enabling block tagging, and always using host wide
tags.  We've had blk-mq available for a few releases so bugs with
this mode should have been ironed out, and this ensures we get better
coverage of over tagging setup over different configs.

Signed-off-by: Christoph Hellwig 
Acked-by: Jens Axboe 
Reviewed-by: Hannes Reinecke 
Signed-off-by: James Bottomley

scsi: ufs-qcom: add QUniPro hardware support and power optimizations

2015-11-09T23:03:55+00:00

New revisions of UFS host controller supports the new UniPro
hardware controller (referred as QUniPro). This patch adds
the support to enable this new UniPro controller hardware.

This change also adds power optimization for bus scaling feature,
as well as support for HS-G3 power mode.

Reviewed-by: Subhash Jadavani 
Reviewed-by: Gilad Broner 
Signed-off-by: Yaniv Gardi 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Martin K. Petersen

scsi: ufs-qcom: add debug prints for test bus

2015-11-09T23:01:58+00:00

Adds support for configuring and reading the test bus and debug
registers. This change also adds another vops in order to print the
debug registers.

Reviewed-by: Subhash Jadavani 
Reviewed-by: Gilad Broner 
Signed-off-by: Yaniv Gardi 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Martin K. Petersen

scsi: ufs: make the UFS variant a platform device

2015-11-09T23:00:02+00:00

This change turns the UFS variant (SCSI_UFS_QCOM) into a UFS
a platform device.
In order to do so a few additional changes are required:
1. The ufshcd-pltfrm is no longer serves as a platform device.
   Now it only serves as a group of platform APIs such as PM APIs
   (runtime suspend/resume, system suspend/resume etc), parsers of
   clocks, regulators and pm_levels from DT.
2. What used to be the old platform "probe" is now "only"
   a pltfrm_init() routine, that does exactly the same, but only
   being called by the new probe function of the UFS variant.

Reviewed-by: Rob Herring 
Reviewed-by: Gilad Broner 
Signed-off-by: Yaniv Gardi 
Tested-by: Alim Akhtar 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Martin K. Petersen

scsi: ufs: creates wrapper functions for vops

2015-11-09T22:48:33+00:00

In order to simplify the code a set of wrapper functions is created
to test and call each of the variant operations.

Reviewed-by: Akinobu Mita 
Reviewed-by: Subhash Jadavani 
Reviewed-by: Gilad Broner 
Signed-off-by: Yaniv Gardi 
Tested-by: Alim Akhtar 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Martin K. Petersen

scsi: ufs: add ufshcd_get_variant ufshcd_set_variant

2015-11-09T22:47:40+00:00

This patch adds ufshcd_get_variant() and ufshcd_set_variant()
routines in order to get/set the variant specific data.

Reviewed-by: Akinobu Mita 
Reviewed-by: Subhash Jadavani 
Reviewed-by: Gilad Broner 
Signed-off-by: Yaniv Gardi 
Tested-by: Alim Akhtar 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Martin K. Petersen

scsi: ufs-qcom: update configuration option of SCSI_UFS_QCOM component

2015-11-09T22:46:56+00:00

This change is required in order to be able to build the component
as a module.

Reviewed-by: Akinobu Mita 
Reviewed-by: Subhash Jadavani 
Reviewed-by: Gilad Broner 
Signed-off-by: Yaniv Gardi 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Martin K. Petersen