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authorSimon Glass <sjg@chromium.org>2016-03-06 19:27:50 -0700
committerBin Meng <bmeng.cn@gmail.com>2016-03-17 10:27:22 +0800
commitbbf2478026c0addfff000f31cc1b5639cbff52cb (patch)
tree58db941696e2d4153370d1b25c11579a89dc8dd3 /lib/hang.c
parent740d5d34b12f49b5e6c48e06dd8f519d9563a7e3 (diff)
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gpio: Add a function to obtain a GPIO vector value
We can use GPIOs as binary digits for reading 'strapping' values. Each GPIO is assigned a single bit and can be set high or low on the circuit board. We already have a legacy function for reading these values. Add one that supports driver model. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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