kernel/git/stable/linux.git/drivers/net/phy/mdio-octeon.c, branch master

net: mdio: Move MDIO drivers into a new subdirectory

2020-08-27T13:55:50+00:00

Move all the MDIO drivers and multiplexers into drivers/net/mdio. The mdio core is however left in the phy directory, due to mutual dependencies between the MDIO core and the PHY core. Take this opportunity to sort the Kconfig based on the menuconfig strings, and move the multiplexers to the end with a separating comment. v2: Fix typo in commit message Acked-by: Florian Fainelli Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: mdio-octeon: Cleanup module loading dependencies

2020-07-07T19:47:11+00:00

To ensure that the octeon MDIO driver has been loaded, the Cavium ethernet drivers reference a dummy symbol in the MDIO driver. This forces it to be loaded first. And this symbol has not been cleanly implemented, resulting in warnings when build W=1 C=1. Since device tree is being used, and a phandle points to the PHY on the MDIO bus, we can make use of deferred probing. If the PHY fails to connect, it should be because the MDIO bus driver has not loaded yet. Return -EPROBE_DEFER so it will be tried again later. Additionally, add a MODULE_SOFTDEP() to give user space a hint as to what order it should load the modules. v2: s/octoen/octeon/ Add MODULE_SOFTDEP() Cc: Sunil Goutham Cc: Robert Richter Cc: Chris Packham Tested-by: Chris Packham Acked-by: Greg Kroah-Hartman Reviewed-by: Florian Fainelli Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: cavium: Improve __iomem mess

2020-07-07T19:47:11+00:00

The MIPS low level register access functions seem to be missing __iomem annotation. This causes lots of sparse warnings, when code casts off the __iomem. Make the Cavium MDIO drivers cleaner by pushing the casts lower down into the helpers, allow the drivers to work as normal, with __iomem. bus->register_base is now an void *, rather than a u64. So forming the mii_bus->id string cannot use %llx any more. Use %px, so this kernel address is still exposed to user space, as it was before. v2: s/cases/causes/g Cc: Sunil Goutham Cc: Robert Richter Reviewed-by: Florian Fainelli Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller

net: phy: Add SDPX tag based on COPYING file

2019-01-23T04:59:18+00:00

Some of the PHY and MDIO drivers refer to the COPYING file in the main directory of this archive. This is the main license for Linux, thus GPLv2 plus syscall extension. Fixup the MODULE_LICENSE() where needed and add an SDPX header for GPLv2. Cc: David Daney Signed-off-by: Andrew Lunn Signed-off-by: David S. Miller

phy: mdio-octeon: Refactor into two files/modules

2016-03-14T19:27:22+00:00

A follow-on patch uses PCI probing to find the Thunder MDIO hardware. In preparation for this, split out the common code into a new file mdio-cavium.c, which will be used by both the existing OCTEON driver, and the new Thunder PCI based driver. As part of the refactoring simplify the struct cavium_mdiobus by removing fields that are only ever used in the probe function and can just as well be local variables. Use readq/writeq in preference to readq_relaxed/writeq_relaxed as the relaxed form was an optimization for an early chip revision, and the MDIO drivers are not performance bottlenecks that need optimization in the first place. Signed-off-by: David Daney Signed-off-by: David S. Miller

mdio: Move allocation of interrupts into core

2016-01-07T19:31:26+00:00

Have mdio_alloc() create the array of interrupt numbers, and initialize it to POLLING. This is what most MDIO drivers want, so allowing code to be removed from the drivers. Signed-off-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

phy: mdio-octeon: Use devm_mdiobus_alloc_size()

2016-01-07T19:31:25+00:00

Rather than use devm_kzalloc(), use the mdio helper function. Signed-off-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller

net: mdio-octeon: Fix octeon_mdiobus_probe function for return values

2015-07-30T00:17:44+00:00

This patch fixes a possible crash in the octeon_mdiobus_probe function if the return values are not handled properly. Signed-off-by: Radha Mohan Chintakuntla Signed-off-by: Tomasz Nowicki Signed-off-by: David S. Miller

net: mdio-octeon: Modify driver to work on both ThunderX and Octeon

2015-07-30T00:17:43+00:00

This patch modifies the mdio-octeon driver to work on both ThunderX and Octeon SoCs from Cavium Inc. Signed-off-by: Sunil Goutham Signed-off-by: Radha Mohan Chintakuntla Signed-off-by: David Daney Signed-off-by: David S. Miller

net: phy: constify of_device_id array

2015-03-17T19:00:23+00:00

of_device_id is always used as const. (See driver.of_match_table and open firmware functions) Signed-off-by: Fabian Frederick Signed-off-by: David S. Miller