Commit 7ce98fb6 authored Jun 26, 2019 by Eddie James Committed by Greg Kroah-Hartman Jul 03, 2019

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: 9f4a8a2d 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>

parent 17c20f32

drivers/fsi/fsi-sbefifo.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -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;

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