linux-toradex.git/include/linux/ahci_platform.h, branch v5.12-rc6

ata: libahci_platform: Export again ahci_platform_able_phys()

2019-12-26T03:47:19+00:00

This reverts commit 6bb86fefa086faba7b60bb452300b76a47cde1a5
("libahci_platform: Staticize ahci_platform_able_phys()") we are
going to need ahci_platform_{enable,disable}_phys() in a subsequent
commit for ahci_brcm.c in order to properly control the PHY
initialization order.

Also make sure the function prototypes are declared in
include/linux/ahci_platform.h as a result.

Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede 
Signed-off-by: Florian Fainelli 
Signed-off-by: Jens Axboe

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 45

2019-05-24T15:27:12+00:00

Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 or at your option any
  later version

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 11 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Kate Stewart 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190520170858.370933192@linutronix.de
Signed-off-by: Greg Kroah-Hartman

ata: libahci_platform: add reset control support

2018-08-22T15:08:27+00:00

Add support to get and control a list of resets for the device
as optional and shared. These resets must be kept de-asserted until
the device is enabled.

This is specified as shared because some SoCs like UniPhier series
have common reset controls with all ahci controller instances.

However, according to Thierry's view,
https://www.spinics.net/lists/linux-ide/msg55357.html
some hardware-specific drivers already use their own resets,
and the common reset make a path to occur double controls of resets.

The ahci_platform_get_resources() can get and control the reset
only when the second argument includes AHCI_PLATFORM_GET_RESETS bit.

Suggested-by: Hans de Goede 
Cc: Thierry Reding 
Signed-off-by: Kunihiko Hayashi 
Reviewed-by: Hans de Goede 
Signed-off-by: Tejun Heo

ata: add an extra argument to ahci_platform_get_resources()

2018-08-22T15:08:27+00:00

Add an extra argument to ahci_platform_get_resources(), that is
for the bitmap representing the resource to get in this function.

Currently there is no resources to be defined, so all the callers set
'0' to the argument.

Suggested-by: Hans de Goede 
Cc: Thierry Reding 
Cc: Matthias Brugger 
Cc: Patrice Chotard 
Cc: Maxime Ripard 
Signed-off-by: Kunihiko Hayashi 
Reviewed-by: Hans de Goede 
Signed-off-by: Tejun Heo

Revert "ata: ahci_platform: allow disabling of hotplug to save power"

2018-08-06T17:22:35+00:00

This reverts commit aece27a2f01be4bb7683790f69cd1bed3a0929a2.

Causes boot failure on some devices.

 http://lore.kernel.org/r/CA+G9fYuKW_jCFZPqG4tz=QY9ROfHO38KiCp9XTA+KaDOFVtcqQ@mail.gmail.com

Signed-off-by: Tejun Heo

ata: ahci_platform: allow disabling of hotplug to save power

2018-06-18T17:58:55+00:00

A number of resources remain powered to support hotplug. On platforms
I've worked with, allowing the ahci_platform to suspend saves about
150mW. This patch enables rpm and allows the device to be auto-suspended
through sysfs.

Signed-off-by: Samuel Morris 
Signed-off-by: Tejun Heo

ata: ahci_platform: Add shutdown handler

2017-08-04T20:34:14+00:00

The newly introduced ahci_platform_shutdown() method is called during
system shutdown to disable host controller DMA and interrupts in order
to avoid potentially corrupting or otherwise interfering with a new
kernel being started with kexec.

Signed-off-by: Nate Watterson 
Signed-off-by: Tejun Heo

ata: ahci_platform: fix owner module reference mismatch for scsi host

2015-01-28T23:45:23+00:00

The owner module reference of the ahci platform's scsi_host is
initialized to libahci_platform's one, because these drivers use a
scsi_host_template defined in libahci_platform.  So these drivers can
be unloaded even if the scsi device is being accessed.

This fixes it by pushing the scsi_host_template from libahci_platform
to all leaf drivers.  The scsi_host_template is passed through a new
argument of ahci_platform_init_host().

Signed-off-by: Akinobu Mita 
Signed-off-by: Tejun Heo 
Cc: Hans de Goede 
Cc: Christoph Hellwig 
Cc: "James E.J. Bottomley" 
Cc: linux-ide@vger.kernel.org
Cc: linux-scsi@vger.kernel.org

ata: libahci: Allow using multiple regulators

2015-01-19T14:53:26+00:00

The current implementation of the libahci allows using multiple PHYs
but not multiple regulators. This patch adds the support of multiple
regulators. Until now it was mandatory to have a PHY under a subnode,
now a port subnode can contain either a regulator or a PHY (or both).

In order to be able to asociate a port with a regulator the port are
now a platform device in the device tree case.

There was only one driver which used directly the regulator field of
the ahci_host_priv structure. To preserve the bisectability the change
in the ahci_imx driver was done in the same patch.

Signed-off-by: Gregory CLEMENT 
Acked-by: Hans de Goede 
Signed-off-by: Tejun Heo

ata: remove deprecated struct ahci_platform_data

2014-08-16T12:35:34+00:00

The last user of the deprecated struct ahci_platform_data has been
cleaned up recently (SPEAr1340 got a proper PHY driver).

Signed-off-by: Bartlomiej Zolnierkiewicz 
Acked-by: Hans de Goede 
Signed-off-by: Tejun Heo