[PATCH 5.4 224/244] powerpc/52xx: Fix an invalid ASM expression (addi used instead of add)

From: Greg Kroah-Hartman
Date: Wed May 12 2021 - 11:16:36 EST


From: Christophe Leroy <christophe.leroy@xxxxxxxxxx>

[ Upstream commit 8a87a507714386efc39c3ae6fa24d4f79846b522 ]

AS arch/powerpc/platforms/52xx/lite5200_sleep.o
arch/powerpc/platforms/52xx/lite5200_sleep.S: Assembler messages:
arch/powerpc/platforms/52xx/lite5200_sleep.S:184: Warning: invalid register expression

In the following code, 'addi' is wrong, has to be 'add'

/* local udelay in sram is needed */
udelay: /* r11 - tb_ticks_per_usec, r12 - usecs, overwrites r13 */
mullw r12, r12, r11
mftb r13 /* start */
addi r12, r13, r12 /* end */

Fixes: ee983079ce04 ("[POWERPC] MPC5200 low power mode")
Signed-off-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/cb4cec9131c8577803367f1699209a7e104cec2a.1619025821.git.christophe.leroy@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
arch/powerpc/platforms/52xx/lite5200_sleep.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/52xx/lite5200_sleep.S b/arch/powerpc/platforms/52xx/lite5200_sleep.S
index 3a9969c429b3..054f927bfef9 100644
--- a/arch/powerpc/platforms/52xx/lite5200_sleep.S
+++ b/arch/powerpc/platforms/52xx/lite5200_sleep.S
@@ -181,7 +181,7 @@ sram_code:
udelay: /* r11 - tb_ticks_per_usec, r12 - usecs, overwrites r13 */
mullw r12, r12, r11
mftb r13 /* start */
- addi r12, r13, r12 /* end */
+ add r12, r13, r12 /* end */
1:
mftb r13 /* current */
cmp cr0, r13, r12
--
2.30.2