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431c03095d
There are systems with more than 8 memory slots where the i2c bus for SPD is multiplexed. i2c_register_spd() isn't used yet on such systems, but it's planned. So we need to extend ee1004 accordingly. With this extension a maximum of 8 i2c busses is supported. I don't have such a system for testing, therefore I just verified that the driver still works on a system with a single i2c bus. For the sake of simplicity the extension uses the existing global mutex to protect access on all busses. This could be improved, but we support 8 busses only, and SPD data is small and rarely accessed, so it shouldn't be a problem. Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/f1a216a8-e77c-49f2-8838-561349b30ab8@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>