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| author | Patrick Delaunay <patrick.delaunay@st.com> | 2019-02-27 17:01:16 +0100 |
|---|---|---|
| committer | Patrick Delaunay <patrick.delaunay@st.com> | 2019-04-12 16:09:13 +0200 |
| commit | b496eec65d3c138c97f16e905b12b6f36a578d04 (patch) | |
| tree | 13ca5dc8921461bbd5d802fb5a1ddb568e5aa20a | |
| parent | 45ccdb6fc7142795af40389ea0612e9bd52fd257 (diff) | |
| download | u-boot-b496eec65d3c138c97f16e905b12b6f36a578d04.tar.gz | |
stm32mp1: cosmetic: add comment on psci_migrate_info_type return value
Add explaination for the return value of psci_migrate_info_type:
2 = Trusted OS.
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
| -rw-r--r-- | arch/arm/mach-stm32mp/psci.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/arm/mach-stm32mp/psci.c b/arch/arm/mach-stm32mp/psci.c index 6ed2482080..c2dff38c36 100644 --- a/arch/arm/mach-stm32mp/psci.c +++ b/arch/arm/mach-stm32mp/psci.c @@ -103,7 +103,13 @@ int __secure psci_affinity_info(u32 function_id, u32 target_affinity, int __secure psci_migrate_info_type(u32 function_id) { - /* Trusted OS is either not present or does not require migration */ + /* + * in Power_State_Coordination_Interface_PDD_v1_1_DEN0022D.pdf + * return 2 = Trusted OS is either not present or does not require + * migration, system of this type does not require the caller + * to use the MIGRATE function. + * MIGRATE function calls return NOT_SUPPORTED. + */ return 2; } |