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ARM: psci: convert psci '-EALREADYON' error code to linux '-EAGAIN'

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This patch adds a possible error code of the cpu_on psci api. It
indicates that the cpu specified in the cpu_on call is up and running
(e.g. the firmware still has not seen the preceding cpu_off call).

Signed-off-by: Achin Gupta <achin.gupta@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
This commit is contained in:
Achin Gupta
2013-03-10 21:31:29 +00:00
committed by Jon Medhurst
parent 88d295ae94
commit 4e57b6c98d
1 changed files with 3 additions and 0 deletions
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3
arch/arm/kernel/psci.c
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@@ -42,6 +42,7 @@ static u32 psci_function_id[PSCI_FN_MAX];
#define PSCI_RET_EOPNOTSUPP -1
#define PSCI_RET_EINVAL -2
#define PSCI_RET_EPERM -3
#define PSCI_RET_EALREADYON -4
static int psci_to_linux_errno(int errno)
{
@@ -54,6 +55,8 @@ static int psci_to_linux_errno(int errno)
return -EINVAL;
case PSCI_RET_EPERM:
return -EPERM;
case PSCI_RET_EALREADYON:
return -EAGAIN;
};
return -EINVAL;