platform/x86: mlx-platform: Add physical bus number auto detection
mlx-platform does not provide a bus number to i2c-mlxcpld, assuming it is always one. On some x86 systems, other i2c drivers may probe before i2c-mlxcpld, causing bus one to be busy. Make mlx-platform determine which adapter number is free prior to activating i2c-mlxpld, adjusting the mux base numbers accordingly. Update the mlxreg-hotplug pdata similarly. This adds an explicit mlx-platform build dependency on I2C, update the Kconfig accordingly. Add the missing REGMAP dependency while we're at it. Signed-off-by:Vadim Pasternak <vadimp@mellanox.com> [dvhart: Rewrite commit message more concisely] [dvhart: Add build dependencies] Signed-off-by:
Darren Hart (VMware) <dvhart@infradead.org>
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f709e1bf
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