[ Upstream commit 2b14cbd643feea5fc17c6e8bead4e71088c69acd ] The Tegra186 CCPLEX cluster register region is 4 MiB is length, not 4 MiB - 1. This was likely presumed to be the "limit" rather than length. Fix it up. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Sasha Levin <sashal@kernel.org>