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author | Phil Reid <preid@electromag.com.au> | 2016-03-01 06:25:41 (GMT) |
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committer | Linus Walleij <linus.walleij@linaro.org> | 2016-03-09 02:50:37 (GMT) |
commit | 28c5a41e4aa44f162297d596030900b90aa1cf08 (patch) | |
tree | b17ea91d50725d924ed7f6f9db4bff1b81ef3fbd /drivers/gpio/gpio-ml-ioh.c | |
parent | df2e90551b7db4b5a4da5eaa78742f47f2799aa2 (diff) | |
download | linux-28c5a41e4aa44f162297d596030900b90aa1cf08.tar.xz |
gpio: mcp23s08: Add support for mcp23s18
This patch adds support for the mcp23s18 which is very similar to
the mcp23s17. A couple of control bits are not the same.
Notable IOCON_HAEN (s17 only) & IOCON_INTCC. Which can be ignored.
Patch changes the following:
- Add mcp23s18 types.
- Always set mirror bit if the dts defines mcp23s18. regardless of type.
Mirror bit is ignored on 8 bit devices anyway.
- In mcp23s08_probe use chip.ngpio instead of logic based on type
to determine number of gpio lins to increment by. This is set
appropiately by the call to mcp23s08_probe_one.
- Add mcp23s18 to device tree documentation.
- Remove statement that irqs don't work for spi. They do.
Tested with mcp23s18.
Signed-off-by: Phil Reid <preid@electromag.com.au>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/gpio/gpio-ml-ioh.c')
0 files changed, 0 insertions, 0 deletions