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[ Upstream commit47d4308653] In sprd clock driver, regmap_config.max_register was set to a fixed value which is likely larger than the address range configured in device tree, when reading registers through debugfs it would cause access violation. Fixes:d41f59fd92("clk: sprd: Add common infrastructure") Signed-off-by: Chunyan Zhang <chunyan.zhang@unisoc.com> Link: https://lore.kernel.org/r/20230316023624.758204-1-chunyan.zhang@unisoc.com Signed-off-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>