[PATCH v2 0/4] amba: Properly handle device probe without IRQ domain

Patch 1~3 make some cleanup, and patch 4 use of_irq_get() instead of 
irq_of_parse_and_map() to get irq number, return -EPROBE_DEFER if the irq
domain is not yet created, and move irq obtain into amba_probe, the driver 
defer probe will properly to handle this error.

V2:
- add new patch to kill irq sysfs file, suggested by Rob.
- move irq obtain from amba_device_add() to amba_probe(), suggested by Saravana.
  (As Saravana said, it will use a new mechanism to deal with the defer probe
   when amba device add and drop the amba specific deferring code, see[1])
- add Rob Reviewed-by to patch 1/2, no patch4 due to patch4 is changed

[1] https://lore.kernel.org/lkml/20210304195101.3843496-1-saravanak@google.com/ (local)

Kefeng Wang (4):
  amba: Drop unused functions about APB/AHB devices add
  Revert "ARM: amba: make use of -1 IRQs warn"
  amba: Kill sysfs attribute file of irq
  amba: Properly handle device probe without IRQ domain

 drivers/amba/bus.c       | 120 ++++++++++-----------------------------
 drivers/of/platform.c    |   6 +-
 include/linux/amba/bus.h |  18 ------
 3 files changed, 30 insertions(+), 114 deletions(-)

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2.18.0.huawei.25