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3bd7d90938
Instead of letting other modules directly access the ->gmbus array, introduce intel_gmbus_get_adapter() for looking up an i2c_adapter for a given gmbus port identifier. This will enable later refactoring of the gmbus port list. Note: Before requesting an adapter for a given gmbus port number, the driver must first check its validity using i2c_intel_gmbus_is_port_valid(). If this check fails, a call to intel_gmbus_get_adapter() will WARN_ON and return NULL. This is relevant for parts of the driver that read a port from VBIOS, which might be improperly initialized and contain an invalid port. In these cases, the driver must fall back to using a safer default port. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> |
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