linux-stable.git/drivers/phy/phy-core.c, branch v3.16.78

phy: Find the right match in devm_phy_destroy()

2015-03-30T10:11:30+00:00

commit 2f1bce487cd0a02623cff3d877940f9a2026341c upstream.

devm_phy_create() stores the pointer to the new PHY at the address
returned by devres_alloc(). The res parameter passed to devm_phy_match()
is therefore the location where the pointer to the PHY is stored, hence
it needs to be dereferenced before comparing to the match data in order
to find the correct match.

Signed-off-by: Thierry Reding 
Signed-off-by: Kishon Vijay Abraham I 
Signed-off-by: Luis Henriques

phy: core: Fix error path in phy_create()

2014-07-12T01:23:49+00:00

Prevent resources from being freed twice in case device_add() call
fails within phy_create(). Also use ida_simple_remove() instead of
ida_remove() as we had used ida_simple_get() to allocate the ida.

Cc: 3.13+  # 3.13+
Signed-off-by: Roger Quadros 
Signed-off-by: Kishon Vijay Abraham I 
Signed-off-by: Greg Kroah-Hartman

phy: fix kernel oops in phy_lookup()

2014-04-24T19:53:38+00:00

The kernel oopses in phy_lookup() due to 'phy->init_data' being NULL if we
register PHYs from a device tree probing driver and then call phy_get() on a
device that has no representation in the device tree (e.g. a PCI device).
Checking the pointer before dereferening it and skipping an interation if
it's NULL prevents this kernel oops.

Signed-off-by: Sergei Shtylyov 
Signed-off-by: Kishon Vijay Abraham I 
Signed-off-by: Greg Kroah-Hartman

phy: core: Add devm_of_phy_get to phy-core

2014-03-08T07:09:43+00:00

Adding devm_of_phy_get will allow to get phys by supplying a
pointer to the struct device_node instead of struct device.

Signed-off-by: Kamil Debski 
Reviewed-by: Tomasz Figa 
Signed-off-by: Kishon Vijay Abraham I

phy: core: Add an exported of_phy_get function

2014-03-08T07:09:42+00:00

Previously the of_phy_get function took a struct device * and
was declared static. It was impossible to call it from
another driver and thus it was impossible to get phy defined
for a given node. The old function was renamed to _of_phy_get
and was left for internal use. of_phy_get function was added
and it was exported. The function enables to get a phy for
a given device tree node.

Signed-off-by: Kamil Debski 
Reviewed-by: Tomasz Figa 
Signed-off-by: Kishon Vijay Abraham I

phy-core: Don't propagate -ENOSUPP from phy_pm_runtime_get_sync to caller

2014-02-18T20:13:16+00:00

The phy-core allows phy_init and phy_power_on to be called multiple times,
but before this patch -ENOSUPP from phy_pm_runtime_get_sync would be
propagated to the caller for the 2nd and later calls.

Signed-off-by: Hans de Goede 
Signed-off-by: Kishon Vijay Abraham I 
Signed-off-by: Greg Kroah-Hartman

phy-core: phy_get: Leave error logging to the caller

2014-02-18T20:13:15+00:00

In various cases errors may be expected, ie probe-deferral or a call to
phy_get from a driver where the use of a phy is optional.

Rather then adding all sort of complicated checks for this, and/or adding
special functions like devm_phy_get_optional, simply don't log an error,
and let deciding if get_phy returning an error really should result in a
dev_err up to the caller.

Signed-off-by: Hans de Goede 
Signed-off-by: Kishon Vijay Abraham I 
Signed-off-by: Greg Kroah-Hartman

drivers: phy: Add support for optional phys

2014-02-05T05:48:43+00:00

Add devm_phy_optional_get and phy_optional_get, which should be used
when the phy is optional. They does not return an error when the phy
does not exist, rather they returns NULL, which is considered as a valid
phy, but results in NOPs when used with the consumer API.

Signed-off-by: Andrew Lunn 
Tested-by: Gregory CLEMENT 
Acked-by: Kishon Vijay Abraham I 
Signed-off-by: Jason Cooper

drivers: phy: Make NULL a valid phy reference

2014-02-05T05:27:54+00:00

The common clock framework considers NULL a valid clock
reference. This makes handling optional clocks simple, in that if the
optional clock is not available, a NULL reference can be used in the
place of a real clock, simplifying the clock consumer.

Extend this concept to the phy consumer API. A NULL can be passed to
the release calls, the phy_init() and phy_exit() calls, and
phy_power_on() and phy_power_off() and a NOP is performed.

Signed-off-by: Andrew Lunn 
Tested-by: Gregory CLEMENT 
Acked-by: Kishon Vijay Abraham I 
Signed-off-by: Jason Cooper

phy: phy-core.c: remove unnecessary initialization of local variables

2013-12-24T18:22:58+00:00

There were a few places where variables are initialized unncessarily.
Remove those initializations.

Signed-off-by: Kishon Vijay Abraham I