linux-stable.git/drivers/net/dsa/microchip, branch v6.1.2

net: dsa: microchip: remove IRQF_TRIGGER_FALLING in request_threaded_irq

2022-12-31T12:32:56+00:00

[ Upstream commit 62e027fb0e5293d95e8d36655757ef4687c8795d ]

KSZ swithes used interrupts for detecting the phy link up and down.
During registering the interrupt handler, it used IRQF_TRIGGER_FALLING
flag. But this flag has to be retrieved from device tree instead of hard
coding in the driver, so removing the flag.

Fixes: ff319a644829 ("net: dsa: microchip: move interrupt handling logic from lan937x to ksz_common")
Reported-by: Christian Eggers 
Signed-off-by: Arun Ramadoss 
Link: https://lore.kernel.org/r/20221213101440.24667-1-arun.ramadoss@microchip.com
Signed-off-by: Jakub Kicinski 
Signed-off-by: Sasha Levin

Merge tag 'i2c-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2022-10-05T01:54:33+00:00

Pull i2c updates from Wolfram Sang:

 - 'remove' callback converted to return void. Big change with trivial
   fixes all over the tree. Other subsystems depending on this change
   have been asked to pull an immutable topic branch for this.

 - new driver for Microchip PCI1xxxx switch

 - heavy refactoring of the Mellanox BlueField driver

 - we prefer async probe in the i801 driver now

 - the rest is usual driver updates (support for more SoCs, some
   refactoring, some feature additions)

* tag 'i2c-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (37 commits)
  i2c: pci1xxxx: prevent signed integer overflow
  i2c: acpi: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
  i2c: i801: Prefer async probe
  i2c: designware-pci: Use standard pattern for memory allocation
  i2c: designware-pci: Group AMD NAVI quirk parts together
  i2c: microchip: pci1xxxx: Add driver for I2C host controller in multifunction endpoint of pci1xxxx switch
  docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED
  i2c: mlxbf: remove device tree support
  i2c: mlxbf: support BlueField-3 SoC
  i2c: cadence: Add standard bus recovery support
  i2c: mlxbf: add multi slave functionality
  i2c: mlxbf: support lock mechanism
  macintosh/ams: Adapt declaration of ams_i2c_remove() to earlier change
  i2c: riic: Use devm_platform_ioremap_resource()
  i2c: mlxbf: remove IRQF_ONESHOT
  dt-bindings: i2c: rockchip: add rockchip,rk3128-i2c
  dt-bindings: i2c: renesas,rcar-i2c: Add r8a779g0 support
  i2c: tegra: Add GPCDMA support
  i2c: scmi: Convert to be a platform driver
  i2c: rk3x: Add rv1126 support
  ...

Merge branch 'master' into i2c/for-mergewindow

2022-09-27T19:33:37+00:00

net: dsa: microchip: ksz9477: remove unnecessary i2c_set_clientdata()

2022-09-27T00:44:28+00:00

Remove unnecessary i2c_set_clientdata() in ->remove(), the driver_data
will be set to NULL in device_unbind_cleanup() after calling ->remove().

Signed-off-by: Yang Yingliang 
Signed-off-by: Jakub Kicinski

net: dsa: microchip: use common irq routines for girq and pirq

2022-09-26T19:42:01+00:00

The global port interrupt routines and individual ports interrupt
routines has similar implementation except the mask & status register
and number of nested irqs in them.  The mask & status register and
pointer to ksz_device is added to ksz_irq and uses the ksz_irq as
irq_chip_data.

Signed-off-by: Arun Ramadoss 
Signed-off-by: Jakub Kicinski

net: dsa: microchip: move interrupt handling logic from lan937x to ksz_common

2022-09-26T19:41:57+00:00

To support the phy link detection through interrupt method for ksz9477
based switch, the interrupt handling routines are moved from
lan937x_main.c to ksz_common.c. The only changes made are functions
names are prefixed with ksz_ instead of lan937x_.

Signed-off-by: Arun Ramadoss 
Reviewed-by: Andrew Lunn 
Signed-off-by: Jakub Kicinski

net: dsa: microchip: lan937x: return zero if mdio node not present

2022-09-26T19:41:07+00:00

Currently, if the mdio node is not present in the dts file then
lan937x_mdio_register return -ENODEV and entire probing process fails.
To make the mdio_register generic for all ksz series switches and to
maintain back-compatibility with existing dts file, return -ENODEV is
replaced with return 0.

Signed-off-by: Arun Ramadoss 
Reviewed-by: Andrew Lunn 
Signed-off-by: Jakub Kicinski

net: dsa: microchip: enable phy interrupts only if interrupt enabled in dts

2022-09-26T19:41:05+00:00

In the lan937x_mdio_register function, phy interrupts are enabled
irrespective of irq is enabled in the switch. Now, the check is added to
enable the phy interrupt only if the irq is enabled in the switch.

Signed-off-by: Arun Ramadoss 
Reviewed-by: Andrew Lunn 
Signed-off-by: Jakub Kicinski

net: dsa: microchip: determine number of port irq based on switch type

2022-09-26T19:41:05+00:00

Currently the number of port irqs is hard coded for the lan937x switch
as 6. In order to make the generic interrupt handler for ksz switches,
number of port irq supported by the switch is added to the
ksz_chip_data. It is 4 for ksz9477, 2 for ksz9897 and 3 for ksz9567.

Signed-off-by: Arun Ramadoss 
Reviewed-by: Andrew Lunn 
Signed-off-by: Jakub Kicinski

net: dsa: microchip: remove unnecessary set_drvdata()

2022-09-23T02:30:36+00:00

Remove unnecessary set_drvdata(NULL) function in ->remove(),
the driver_data will be set to NULL in device_unbind_cleanup()
after calling ->remove().

Signed-off-by: Yang Yingliang 
Signed-off-by: Jakub Kicinski