Blackfin: dpmc: omit RETE/RETN when hibernating

The RETE/RETN registers are only used in emulation(JTAG) and NMI nodes,
or as scratch registers, neither of which need to be saved/restored as
this code doesn't execute at those core event levels.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

diff --git a/arch/blackfin/mach-common/dpmc_modes.S b/arch/blackfin/mach-common/dpmc_modes.S
index 3fba05c..bebb019 100644 (file)
--- a/arch/blackfin/mach-common/dpmc_modes.S
+++ b/arch/blackfin/mach-common/dpmc_modes.S
@@ -510,8 +510,6 @@ ENTRY(_do_hibernate)
        r0 = RETI;
        [--sp] = r0;
        [--sp] = RETX;
-       [--sp] = RETN;
-       [--sp] = RETE;
        [--sp] = SEQSTAT;
 
        /* Save Magic, return address and Stack Pointer */
@@ -533,8 +531,6 @@ ENTRY(_do_hibernate)
 
        /* Restore Core Registers */
        SEQSTAT = [sp++];
-       RETE = [sp++];
-       RETN = [sp++];
        RETX = [sp++];
        r0 = [sp++];
        RETI = r0;