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Date:   Fri, 14 Aug 2020 11:03:54 +0100
From:   Thomas Preston <>
Subject: [PATCH 0/3] pinctrl: mcp23s08: Fixups for mcp23x17

I'm in the process of adding a device tree overlay for the PiFace
Digital Raspberry Pi daughter board [0]. It's an mcp23s17 SPI GPIO port
expander. In doing so, I noticed some errors with the mcp23s08 driver.

This series adds my fixups to (which builds successfully):


But I have only tested them on (rpi-5.4.y):


They're quite trivial and backwards compatible, although I might be
wrong about "interrupt-controller". Can someone please confirm?

Many thanks,


Thomas Preston (3):
  pinctrl: mcp23s08: Fixup mcp23x17 regmap_config
  pinctrl: mcp23s08: Remove interrupt-controller
  devicetree: mcp23s08: Remove interrupt-controller

 .../bindings/pinctrl/pinctrl-mcp23s08.txt     |  8 -----
 drivers/pinctrl/pinctrl-mcp23s08.c            | 35 +++++++++----------
 drivers/pinctrl/pinctrl-mcp23s08.h            |  2 +-
 3 files changed, 18 insertions(+), 27 deletions(-)


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