[PATCH 22/30] ARM: AM33xx: fix module_wait_ready without clkctrl register

Tero Kristo
2016-04-11T08:19:13Z

If the module has no clkctrl register defined, module_wait_ready should
not try to access this. This can potentially cause an illegal register
access, and result in bad idle reporting also.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
---
arch/arm/mach-omap2/cm33xx.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index 7b181f9..c073fb5 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -220,6 +220,9 @@ static int am33xx_cm_wait_module_ready(u8 part, s16 inst, u16 clkctrl_offs,
{
int i = 0;

+ if (!clkctrl_offs)
+ return 0;
+
omap_test_timeout(_is_module_ready(inst, clkctrl_offs),
MAX_MODULE_READY_TIME, i);

--
1.7.9.5