[PATCHv2 0/6] mcp23s08 pinconf support

From: Sebastian Reichel
Date: Thu Apr 27 2017 - 10:21:25 EST


Hi,

Back in January I sent patches adding pinconf support
for configuring mcp23s08's pull-ups. Apart from my
custom Raspberry Pi setup the pull-up support is also
needed by Toby Churchill SL50.

Changes since PATCHv1:
* Add patch moving mcp23s08 from gpio/ to pinctrl/
* Add patches updating config references in arch/
* Add patch removing pdata support for pullup config

I did not add a stub for GPIO_MCP23S08 selecting the
new PINCTRL_MCP23S08, since that would require a copy
of all "depends on" information, which is quite messy.
Also it seems to be quite unusual (I found no instance
of a select being used for a renamed config option).

I see the following merge strategies:

a) Ignore limited bisectability and merge all
patches through their own subsystem. Compilation
should always succeed, but the blackfin boards
will be without mcp23s08 support with only one of
patch 1 and 2 being applied.
b) - Squash patch 1 & 2
- Queue that patch into gpio/pinctrl
- Provide immutable-branch for blackfin & arm
- Blackfin & ARM can pull immutable-branch & apply defconfig patch
- gpio/pinctrl can queue patch 5 & 6
c) The same as b), but squash patch 1-4 to guarantee
bisectability for defconfig.

-- Sebastian

Sebastian Reichel (6):
gpio: mcp23s08: move to pinctrl
blackfin: boards: MCP23S08 config has been renamed
blackfin: defconfig: MCP23S08 config has been renamed
arm: lpc32xx: defconfig: MCP23S08 config has been renamed
pinctrl: mcp23s08: add pinconf support
pinctrl: mcp23s08: drop pullup config from pdata

arch/arm/configs/lpc32xx_defconfig | 2 +-
arch/blackfin/configs/BF609-EZKIT_defconfig | 2 +-
arch/blackfin/mach-bf527/boards/tll6527m.c | 4 +-
arch/blackfin/mach-bf609/boards/ezkit.c | 4 +-
drivers/gpio/Kconfig | 17 --
drivers/gpio/Makefile | 1 -
drivers/pinctrl/Kconfig | 14 ++
drivers/pinctrl/Makefile | 1 +
.../gpio-mcp23s08.c => pinctrl/pinctrl-mcp23s08.c} | 206 +++++++++++++++++----
include/linux/spi/mcp23s08.h | 1 -
10 files changed, 196 insertions(+), 56 deletions(-)
rename drivers/{gpio/gpio-mcp23s08.c => pinctrl/pinctrl-mcp23s08.c} (86%)

--
2.11.0