msm: idle-v7: Add a isb between CCSELR write and CCSIDR read
An isb is required after a CCSELR write to ensure that write takes
effect before reading CCSIDR. Without an isb, CCSIDR read could
correspond to a random CCSELR register.
CRs-fixed: 320585
Signed-off-by:
Maheshkumar Sivasubramanian <msivasub@codeaurora.org>
Change-Id: Iab75cd5ff98cfdc0eeeb721ccd3b739ae1fcbd70
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