bus: mhi: Add MMIO region length to controller structure

stable inclusion
from stable-v5.10.192
commit f73891261566c8b0dae759fde5498d98f4f17ab6
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I933RF

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=f73891261566c8b0dae759fde5498d98f4f17ab6

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[ Upstream commit baa7a085 ]

Make controller driver specify the MMIO register region length
for range checking of BHI or BHIe space. This can help validate
that offsets are in acceptable memory region or not and avoid any
boot-up issues due to BHI or BHIe memory accesses.

Link: https://lore.kernel.org/r/1620330705-40192-4-git-send-email-bbhatt@codeaurora.org


Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Reviewed-by: Hemant Kumar <hemantk@codeaurora.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Bhaumik Bhatt <bbhatt@codeaurora.org>
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210802051255.5771-6-manivannan.sadhasivam@linaro.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 6a0c637b ("bus: mhi: host: Range check CHDBOFF and ERDBOFF")
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: sanglipeng <sanglipeng1@jd.com>