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Anurag Kumar Vulisha 26bf3b6658 ata: ceva: Correct the suspend and resume logic for SATA
The present suspend code disables the port interrupts
and stops the HBA. On resume it enables the interrupts and HBA.
This works fine until the FPD power domain is not off.
If FPD is off then the ceva vendor specific configurations like
OOB, AXI settings are lost, they need to be re-programmed and
also since SERDES is also in FPD , SATA lane phy init needs to
be called again (which is not happening in the present sequence)
Because of this incorrect sequence SATA fails to work on resume.

This patch corrects the code to make Suspend & Resume work in normal
and FPD off cases.

Signed-off-by: Anurag Kumar Vulisha <anuragku@xilinx.com>
Reviewed-by: Shubhrajyoti Datta <shubhraj@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2017-10-23 07:09:27 -07:00
arch media updates for v4.14-rc1 2017-09-07 12:53:14 -07:00
block Merge tag 'md/4.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md 2017-09-07 12:41:48 -07:00
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Documentation devicetree: bindings: Add sata port phy config parameters in ahci-ceva 2017-10-23 07:09:25 -07:00
drivers ata: ceva: Correct the suspend and resume logic for SATA 2017-10-23 07:09:27 -07:00
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fs media updates for v4.14-rc1 2017-09-07 12:53:14 -07:00
include libata: Add new med_power_with_dipm link_power_management_policy setting 2017-09-18 20:22:04 -07:00
init Merge branch 'for-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2017-09-06 21:33:12 -07:00
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kernel Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block 2017-09-07 11:59:42 -07:00
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tools powerpc updates for 4.14 2017-09-07 10:15:40 -07:00
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virt KVM: update to new mmu_notifier semantic v2 2017-08-31 16:13:00 -07:00
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MAINTAINERS media updates for v4.14-rc1 2017-09-07 12:53:14 -07:00
Makefile Merge branch 'docs-next' of git://git.lwn.net/linux 2017-09-03 21:07:29 -07:00
README

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.