powerpc/52xx: Fix an invalid ASM expression ('addi' used instead of 'add')

[ 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@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/cb4cec9131c8577803367f1699209a7e104cec2a.1619025821.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/powerpc/platforms/52xx/lite5200_sleep.S b/arch/powerpc/platforms/52xx/lite5200_sleep.S
index 08ab6fefcf7a64e42f391950416fe7885f3718eb..5f44e922341379716ac922cc3bb003aa7c6393c7 100644 (file)
--- a/arch/powerpc/platforms/52xx/lite5200_sleep.S
+++ b/arch/powerpc/platforms/52xx/lite5200_sleep.S
@@ -180,7 +180,7 @@ 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