linux.git/drivers/phy/mscc, branch v6.18.21

phy: constify of_phandle_args in xlate

2024-02-23T12:13:14+00:00

The xlate callbacks are supposed to translate of_phandle_args to proper
provider without modifying the of_phandle_args.  Make the argument
pointer to const for code safety and readability.

Signed-off-by: Krzysztof Kozlowski 
Acked-by: Thierry Reding 
Acked-by: Linus Walleij 
Acked-by: Florian Fainelli  #Broadcom
Link: https://lore.kernel.org/r/20240217093937.58234-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul

phy: phy-ocelot-serdes: add ability to be used in a non-syscon configuration

2023-03-20T09:08:48+00:00

The phy-ocelot-serdes module has exclusively been used in a syscon setup,
from an internal CPU. The addition of external control of ocelot switches
via an existing MFD implementation means that syscon is no longer the only
interface that phy-ocelot-serdes will see.

In the MFD configuration, an IORESOURCE_REG resource will exist for the
device. Utilize this resource to be able to function in both syscon and
non-syscon configurations.

Signed-off-by: Colin Foster 
Signed-off-by: David S. Miller

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner 
Signed-off-by: Greg Kroah-Hartman

phy: ocelot-serdes: Add support for SERDES6G muxing

2019-04-18T16:38:25+00:00

Adding support for SERDES6G muxing required for QSGMII mode of operation.

Signed-off-by: Kavya Sree Kotagiri 
Signed-off-by: Quentin Schulz 
Signed-off-by: Steen Hegelund 
Co-developed-by: Quentin Schulz 
Co-developed-by: Steen Hegelund 
Signed-off-by: Kishon Vijay Abraham I

phy: ocelot-serdes: convert to use eth phy mode and submode

2018-12-12T04:31:35+00:00

Convert ocelot-serdes PHY driver to use recently introduced
PHY_MODE_ETHERNET and phy_set_mode_ext().

Cc: Quentin Schulz 
Signed-off-by: Grygorii Strashko 
Reviewed-by: Quentin Schulz 
Tested-by: Quentin Schulz 
Signed-off-by: Kishon Vijay Abraham I

phy: core: rework phy_set_mode to accept phy mode and submode

2018-12-12T04:31:33+00:00

Currently the attempt to add support for Ethernet interface mode PHY
(MII/GMII/RGMII) will lead to the necessity of extending enum phy_mode and
duplicate there values from phy_interface_t enum (or introduce more PHY
callbacks) [1]. Both approaches are ineffective and would lead to fast
bloating of enum phy_mode or struct phy_ops in the process of adding more
PHYs for different subsystems which will make them unmaintainable.

As discussed in [1] the solution could be to introduce dual level PHYs mode
configuration - PHY mode and PHY submode. The PHY mode will define generic
PHY type (subsystem - PCIE/ETHERNET/USB_) while the PHY submode - subsystem
specific interface mode. The last is usually already defined in
corresponding subsystem headers (phy_interface_t for Ethernet, enum
usb_device_speed for USB).

This patch is cumulative change which refactors PHY framework code to
support dual level PHYs mode configuration - PHY mode and PHY submode. It
extends .set_mode() callback to support additional parameter "int submode"
and converts all corresponding PHY drivers to support new .set_mode()
callback declaration.
The new extended PHY API
 int phy_set_mode_ext(struct phy *phy, enum phy_mode mode, int submode)
is introduced to support dual level PHYs mode configuration and existing
phy_set_mode() API is converted to macros, so PHY framework consumers do
not need to be changed (~21 matches).

[1] http://lkml.kernel.org/r/d63588f6-9ab0-848a-5ad4-8073143bd95d@ti.com
Signed-off-by: Grygorii Strashko 
Signed-off-by: Kishon Vijay Abraham I

phy: ocelot-serdes: fix out-of-bounds read

2018-10-23T02:27:14+00:00

Currently, there is an out-of-bounds read on array ctrl->phys,
once variable i reaches the maximum array size of SERDES_MAX
in the for loop.

Fix this by changing the condition in the for loop from
i <= SERDES_MAX to i < SERDES_MAX.

Addresses-Coverity-ID: 1473966 ("Out-of-bounds read")
Addresses-Coverity-ID: 1473959 ("Out-of-bounds read")
Fixes: 51f6b410fc22 ("phy: add driver for Microsemi Ocelot SerDes muxing")
Reviewed-by: Quentin Schulz 
Signed-off-by: Gustavo A. R. Silva 
Signed-off-by: David S. Miller

phy: phy-ocelot-serdes: fix return value check in serdes_probe()

2018-10-11T05:54:26+00:00

In case of error, the function syscon_node_to_regmap() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR().

Fixes: 51f6b410fc22 ("phy: add driver for Microsemi Ocelot SerDes muxing")
Signed-off-by: Wei Yongjun 
Reviewed-by: Quentin Schulz 
Signed-off-by: David S. Miller

phy: add driver for Microsemi Ocelot SerDes muxing

2018-10-05T21:36:44+00:00

The Microsemi Ocelot can mux SerDes lanes (aka macros) to different
switch ports or even make it act as a PCIe interface.

This adds support for the muxing of the SerDes.

Signed-off-by: Quentin Schulz 
Signed-off-by: David S. Miller