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fsi: sbefifo: Don't fail operations when in SBE IPL state 

SBE fifo operations should be allowed while the SBE is in any of the
"IPL" states. Operations should succeed in this state.

Fixes: 9f4a8a2d7f fsi/sbefifo: Add driver for the SBE FIFO
Reviewed-by: Joel Stanley <joel@jms.id.au>
Tested-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Eddie James <eajames@linux.ibm.com>
Link: https://lore.kernel.org/r/1561575415-3282-1-git-send-email-eajames@linux.ibm.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
alistair/sunxi64-5.4-dsi
Eddie James 2019-06-26 13:56:55 -05:00 committed by Greg Kroah-Hartman
parent 17c20f329a
commit 7ce98fb6c5
1 changed files with 2 additions and 2 deletions
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4
drivers/fsi/fsi-sbefifo.c
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@ -289,11 +289,11 @@ static int sbefifo_check_sbe_state(struct sbefifo *sbefifo)
switch ((sbm & CFAM_SBM_SBE_STATE_MASK) >> CFAM_SBM_SBE_STATE_SHIFT) {
case SBE_STATE_UNKNOWN:
return -ESHUTDOWN;
case SBE_STATE_DMT:
return -EBUSY;
case SBE_STATE_IPLING:
case SBE_STATE_ISTEP:
case SBE_STATE_MPIPL:
case SBE_STATE_DMT:
return -EBUSY;
case SBE_STATE_RUNTIME:
case SBE_STATE_DUMP: /* Not sure about that one */
break;