commit 28cfcee100fb06051dcda75a751af894618f094d
author Venkat Gopalakrishnan <venkatg@codeaurora.org> Tue Sep 15 15:57:35 2015 -0700
committer Xiaonian Wang <xiaonian@codeaurora.org> Fri Apr 07 17:30:39 2017 -0700
tree d0ca71d26736b4dd1f953a4065a9d4231b80c83d
parent b9ed56190982091f0a288956a3e9442fdb9d0a31

mmc: debugfs: add debugfs entry to force raise host errors

The SDHC spec allows to force raise errors that is useful for
debugging error handler routines. Add debugfs entry force_error
to trigger host errors from userspace. Check SDHCI_SET_INT_ERROR
register for error bitmask info.

Usage: echo 0x1 > /sys/kernel/debug/mmcX/force_error
X - denotes the slot id

Change-Id: I9f67442a79b2645cbdc3020d1a10c0b32840ce32
Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
[subhashj@codeaurora.org: fixed trivial merge conflicts]
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>