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i2c: mux: Add register-based mux i2c-mux-reg

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Based on i2c-mux-gpio driver, similarly the register-based mux
switch from one bus to another by setting a single register.
The register can be on PCIe bus, local bus, or any memory-mapped
address. The endianness of such register can be specified in device
tree if used, or in platform data.

Signed-off-by: York Sun <yorksun@freescale.com>
Acked-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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York Sun 2015-08-17 11:53:48 -07:00 • committed by Wolfram Sang
commit b3fdd32799
5 changed files with 424 additions and 0 deletions
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