linux-stable.git/drivers/phy/phy-core.c, branch linux-5.17.y

phy: Allow a NULL phy name for devm_phy_get()

2021-05-14T12:18:41+00:00

For a single PHY, there's no reason to have a phy-names entry in DT.
The DT specific get functions allow for this already, but devm_phy_get()
WARNs in this case. Other subsystems also don't warn in their get
functions. Let's drop the WARN for DT case in devm_phy_get().

Cc: Kishon Vijay Abraham I 
Cc: Vinod Koul 
Signed-off-by: Rob Herring 
Link: https://lore.kernel.org/r/20210414135525.3535787-1-robh@kernel.org
Signed-off-by: Vinod Koul

phy: Add media type and speed serdes configuration interfaces

2021-03-17T06:43:19+00:00

Provide new phy configuration interfaces for media type and speed that
allows e.g. PHYs used for ethernet to be configured with this
information.

Signed-off-by: Lars Povlsen 
Signed-off-by: Steen Hegelund 
Reviewed-by: Andrew Lunn 
Reviewed-by: Alexandre Belloni 
Acked-By: Kishon Vijay Abraham I 
Link: https://lore.kernel.org/r/20210218161451.3489955-3-steen.hegelund@microchip.com
Signed-off-by: Vinod Koul

phy: core: Document function args

2020-07-08T11:10:21+00:00

Some function arguments are missing from documentation prompting
validation kernel doc script to complain:

drivers/phy/phy-core.c:1078: warning: Function parameter or member
'children' not described in '__devm_of_phy_provider_register'
drivers/phy/phy-core.c:1125: warning: Function parameter or member
'phy_provider' not described in 'devm_of_phy_provider_unregister'

Add the documentation for these

Link: https://lore.kernel.org/r/20200629145010.122675-2-vkoul@kernel.org
Signed-off-by: Vinod Koul

phy: core: fix code style in devm_of_phy_provider_unregister

2020-07-08T11:10:13+00:00

Documentation/process/coding-style.rst says:
"functions: they have the opening brace at the beginning of the next
line"

devm_of_phy_provider_unregister() function has opening brace at same
line, so fix it up.

Link: https://lore.kernel.org/r/20200629145010.122675-1-vkoul@kernel.org
Signed-off-by: Vinod Koul

phy: core: Fix phy_get() to not return error on link creation failure

2020-02-19T10:32:02+00:00

commit 987351e1ea77 ("phy: core: Add consumer device link support")
added device link support between PHY consumer and PHY provider.
However certain peripherals (DWC3 ULPI) have cyclic dependency
between the PHY provider and PHY consumer causing the device link
creation to fail.

Instead of erroring out on failure to create device link, only add a
debug print to indicate device link creation failed to get USB
working again in multiple platforms.

Fixes: 987351e1ea77 ("phy: core: Add consumer device link support")
Cc: Alexandre Torgue 
Signed-off-by: Kishon Vijay Abraham I 
Reviewed-by: Alexandre TORGUE

treewide: remove redundant IS_ERR() before error code check

2020-02-04T03:05:27+00:00

'PTR_ERR(p) == -E*' is a stronger condition than IS_ERR(p).
Hence, IS_ERR(p) is unneeded.

The semantic patch that generates this commit is as follows:

// 
@@
expression ptr;
constant error_code;
@@
-IS_ERR(ptr) && (PTR_ERR(ptr) == - error_code)
+PTR_ERR(ptr) == - error_code
// 

Link: http://lkml.kernel.org/r/20200106045833.1725-1-masahiroy@kernel.org
Signed-off-by: Masahiro Yamada 
Cc: Julia Lawall 
Acked-by: Stephen Boyd  [drivers/clk/clk.c]
Acked-by: Bartosz Golaszewski  [GPIO]
Acked-by: Wolfram Sang  [drivers/i2c]
Acked-by: Rafael J. Wysocki  [acpi/scan.c]
Acked-by: Rob Herring 
Cc: Eric Biggers 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

phy: core: Add consumer device link support

2020-01-08T07:18:47+00:00

In order to enforce suspend/resume ordering, this commit creates link
between phy consumers and phy devices. This link avoids to suspend phy
before phy consumers.

Signed-off-by: Alexandre Torgue 
[jonathanh@nvidia.com: Fix an abort when of_phy_get() returns error]
Signed-off-by: Jonathan Hunter 
Signed-off-by: Kishon Vijay Abraham I

phy: core: document phy_calibrate()

2019-08-23T04:10:57+00:00

Commit 36914111e682 ("drivers: phy: add calibrate method") added support
for generic phy_calibrate() method, but it didn't explain in detail when
such method is supposed to be called. Add some more documentation directly
to the phy.h to make it clean that it is intended to be called after every
host controller reset.

Signed-off-by: Marek Szyprowski 
Signed-off-by: Kishon Vijay Abraham I

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32+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 of the license 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 3029 file(s).

Signed-off-by: Thomas Gleixner 
Reviewed-by: Allison Randal 
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman

phy: core: Invoke pm_runtime_get_/pm_runtime_put_ before invoking reset callback

2019-04-17T08:43:17+00:00

PHY drivers may try to access PHY registers in the ->reset() callback.
Invoke phy_pm_runtime_get_sync() before invoking the ->reset() callback
so that the PHY drivers don't have to enable clocks by themselves before
accessing PHY registers.

Signed-off-by: Kishon Vijay Abraham I