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ARM: vexpress: allow native pm ops backends to probe for psci suppport

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This patch allows the vexpress 'rtsm' native backend to probe
the dt for presence of the psci backend. If present then the native
implementation of the 'bL_platform_power_ops' is not used.

Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Jon Medhurst <tixy@linaro.org>
This commit is contained in:
Achin Gupta 2012-12-17 00:15:00 +00:00 committed by Jon Medhurst
parent 3d2f3686f7
commit 659eaba2ac
1 changed files with 7 additions and 0 deletions
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7
arch/arm/mach-vexpress/dcscb.c
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@ -23,6 +23,7 @@
#include <asm/cacheflush.h>
#include <asm/cputype.h>
#include <asm/cp15.h>
#include <asm/psci.h>
#define RST_HOLD0 0x0
@ -217,6 +218,12 @@ static int __init dcscb_init(void)
unsigned int cfg;
int ret;
ret = psci_probe();
if (!ret) {
pr_debug("psci found. Aborting native init\n");
return -ENODEV;
}
if (!cci_probed())
return -ENODEV;