linux-toradex.git/drivers/ata/libahci_platform.c, branch v5.0

ata: libahci_platform: comply to PHY framework

2019-01-11T21:47:45+00:00

Current implementation of the libahci does not take into account the
new PHY framework. Correct the situation by adding a call to
phy_set_mode() before phy_power_on().

PHYs should also be handled at suspend/resume time. For this, call
ahci_platform_enable/disable_phys() at suspend/resume_host() time. These
calls are guarded by a HFLAG (AHCI_HFLAG_SUSPEND_PHYS) that the user of
the libahci driver must set manually in hpriv->flags at probe time. This
is to avoid breaking users that have not been tested with this change.

Reviewed-by: Hans de Goede 
Suggested-by: Grzegorz Jaszczyk 
Signed-off-by: Miquel Raynal 
Signed-off-by: Jens Axboe

ata: ahci_platform: add support for PHY controller regulator

2018-09-03T14:17:13+00:00

The SoC R40 AHCI controller need a PHY regulator to work.
But since the PHY is embedded in the controller, we cannot do a DT node for it,
since phy-supply works only in node with a PHY compatible.
So this patch adds a way to add an optional phy-supply regulator on AHCI controller node.

Acked-by: Maxime Ripard 
Reviewed-by: Hans de Goede 
Signed-off-by: Corentin Labbe 
Signed-off-by: Jens Axboe

ata: ahci_platform: add support for AHCI controller regulator

2018-09-03T14:17:12+00:00

The SoC R40 AHCI controller need a regulator to work.
So this patch add a way to add an optional regulator on AHCI controller.

Acked-by: Maxime Ripard 
Reviewed-by: Hans de Goede 
Signed-off-by: Corentin Labbe 
Signed-off-by: Jens Axboe

ata: ahci: Convert to using %pOFn instead of device_node.name

2018-08-28T14:44:14+00:00

In preparation to remove the node name pointer from struct device_node,
convert printf users to use the %pOFn format specifier.

Cc: Hans de Goede 
Cc: Jens Axboe 
Cc: linux-ide@vger.kernel.org
Signed-off-by: Rob Herring 
Signed-off-by: Jens Axboe

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

Revert "ata: ahci_platform: convert kcalloc to devm_kcalloc"

2018-07-24T16:44:24+00:00

Since ahci_platform_put_resources() use target_pwrs after "devm_" freed
it, we cannot use devm_kcalloc for allocating target_pwrs.

This reverts commit bd0038b1b4f499d814d8f33a55b1df5ea6cf3b85.

Reported-and-reviwed-by: Mikko Perttunen 
Tested-by: Marcel Ziswiler 
Tested-by: Jon Hunter 
Signed-off-by: Corentin Labbe 
Signed-off-by: Tejun Heo

ata: ahci_platform: convert kcalloc to devm_kcalloc

2018-07-12T20:02:39+00:00

Like phys, target_pwrs could be allocated with devm_ function

Signed-off-by: Corentin Labbe 
Reviewed-by: Hans de Goede 
Signed-off-by: Tejun Heo

ata: ahci_platform: convert kzallloc to kcalloc

2018-07-12T20:02:39+00:00

It's better to kcalloc instead of kzalloc(n * sizeof())

Signed-off-by: Corentin Labbe 
Reviewed-by: Hans de Goede 
Signed-off-by: Tejun Heo