With an out-of-place upgrade, the installer installs the newer version of Oracle Grid Infrastructure in a separate Oracle Grid Infrastructure home.
An in-place upgrade of Oracle Grid Infrastructure 11g Release 2 (11.2) is not supported. For example, an upgrade of Oracle Grid Infrastructure 11g Release 2 (11.2.0.1) to Oracle Grid Infrastructure 11g Release 2 (11.2.0.2) must be an out of place upgrade.
Oracle Grid Infrastructure Installation Guide for information about installing Oracle Grid Infrastructure, out of place upgrades, and performing rolling upgrades of Oracle Grid Infrastructure and Oracle ASM