clk: sprd: set max_register according to mapping range

stable inclusion
from stable-v5.10.178
commit 8a886f01b85d9575c6a197dd2e8f90d18e303d0a
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8D927

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=8a886f01b85d9575c6a197dd2e8f90d18e303d0a



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[ Upstream commit 47d43086 ]

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: d41f59fd ("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>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>