ARM: imx: build suspend-imx6.S with arm instruction set
authorMax Krummenacher <max.oss.09@gmail.com>
Mon, 11 Jan 2021 15:17:04 +0000 (16:17 +0100)
committerShawn Guo <shawnguo@kernel.org>
Mon, 18 Jan 2021 06:47:34 +0000 (14:47 +0800)
commita88afa46b86ff461c89cc33fc3a45267fff053e8
treea79e3ce3a8c8adea90dd084cb2e6e9675792499d
parenteb363edace688898956b99e48daa8d7e05cee795
ARM: imx: build suspend-imx6.S with arm instruction set

When the kernel is configured to use the Thumb-2 instruction set
"suspend-to-memory" fails to resume. Observed on a Colibri iMX6ULL
(i.MX 6ULL) and Apalis iMX6 (i.MX 6Q).

It looks like the CPU resumes unconditionally in ARM instruction mode
and then chokes on the presented Thumb-2 code it should execute.

Fix this by using the arm instruction set for all code in
suspend-imx6.S.

Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Fixes: df595746fa69 ("ARM: imx: add suspend in ocram support for i.mx6q")
Acked-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
arch/arm/mach-imx/suspend-imx6.S