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authorStephen Boyd <stephen.boyd@linaro.org>2018-01-30 18:36:18 -0800
committerRob Herring <robh@kernel.org>2018-02-12 08:37:59 -0600
commitc11e6f0f04dbc5e0384e7d530b024b2e3ae4bb17 (patch)
tree2c9e010508fdaf92e78fc26ff8a68e0074cb1c74 /drivers/of/unittest-data
parent357aa4b61c82b59a40caf5a65d22e636a3639144 (diff)
downloadlinux-c11e6f0f04dbc5e0384e7d530b024b2e3ae4bb17.tar.bz2
gpio: Support gpio nexus dt bindings
Platforms like 96boards have a standardized connector/expansion slot that exposes signals like GPIOs to expansion boards in an SoC agnostic way. We'd like the DT overlays for the expansion boards to be written once without knowledge of the SoC on the other side of the connector. This avoids the unscalable combinatorial explosion of a different DT overlay for each expansion board and SoC pair. Now that we have nexus support in the OF core let's change the function call here that parses the phandle lists of gpios to use the nexus variant. This allows us to remap phandles and their arguments through any number of nexus nodes and end up with the actual gpio provider being used. Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'drivers/of/unittest-data')
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