[PATCH v2 0/7] IP101GR: devicetree based configuration of SEL_INTR32

[Martin Blumenstingl <martin.blumenstingl@googlemail.com>]

The IP101GR is a 32-pin QFN package variant of the IP101G/IP101GA
Ethernet PHY. Due to it's limited amount of pins the RXER (receive
error) and INTR32 (interrupt) functions share pin 21.

The goal of this series is:
- some small cleanups in patches 3, 4 and 5
- allowing the kernel to detect IRQ floods on boards where the IP101GR
  is configured in RXER mode but the RXER line is configured on the
  host SoC as interrupt line (patch 6)
- configuration of the SEL_INTR32 register so we can use the interrupt
  function on boards where the RXER/INTR32 pin (pin 21) is routed to
  one of the host SoC's interrupt inputs (patches 1, 2, 7)

A use-case where this is needed is the Endless Mini (EC-100). I have
tested my changes on that board. This also confirms that Heiner
Kallweit's recent icplus.c PHY driver changes are working (at least on
my setup).

This series is based on net-next commit 7c460cf9cd1a ("net: aquantia:
fix spelling mistake "specfield" -> "specified"")


Changes since v1 at [0]:
- collected Andrew's Reviewed-by's (thank you!)
- updated description of patch #2 to explain why two properties were
  added instead of adding an "this is a IP101GR" property
- validate that there's no conflicting configuration in patch #7
- rebased on top of latest net-next


[0] https://patchwork.ozlabs.org/cover/999371/


Martin Blumenstingl (7):
  dt-bindings: vendor-prefix: add prefix for IC Plus Corp.
  dt-bindings: net: phy: add bindings for the IC Plus Corp. IP101A/G
    PHYs
  net: phy: icplus: keep all ip101a_g functions together
  net: phy: icplus: use the BIT macro where possible
  net: phy: icplus: rename IP101A_G_NO_IRQ to IP101A_G_IRQ_ALL_MASK
  net: phy: icplus: implement .did_interrupt for IP101A/G
  net: phy: icplus: allow configuring the interrupt function on IP101GR

 .../bindings/net/icplus-ip101ag.txt           |  19 +++
 .../devicetree/bindings/vendor-prefixes.txt   |   1 +
 drivers/net/phy/icplus.c                      | 135 +++++++++++++++---
 3 files changed, 135 insertions(+), 20 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/icplus-ip101ag.txt

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2.19.1