At init time, check the powerdomains lookup is successful otherwise exit the cpuidle driver init function with -ENODEV like what is done for the omap3 cpuidle driver.
Signed-off-by: Daniel Lezcano daniel.lezcano@linaro.org Reviewed-by: Jean Pihet j-pihet@ti.com --- arch/arm/mach-omap2/cpuidle34xx.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c index f682e17..207bc1c 100644 --- a/arch/arm/mach-omap2/cpuidle34xx.c +++ b/arch/arm/mach-omap2/cpuidle34xx.c @@ -363,6 +363,9 @@ int __init omap3_idle_init(void) per_pd = pwrdm_lookup("per_pwrdm"); cam_pd = pwrdm_lookup("cam_pwrdm");
+ if (!mpu_pd || !core_pd || !per_pd || !cam_pd) + return -ENODEV; + cpuidle_register_driver(&omap3_idle_driver);
dev = &per_cpu(omap3_idle_dev, smp_processor_id());