Some users of SCM need to detect features and also detect if those features have certain versions available. Add this API.
Signed-off-by: Stephen Boyd <[email protected]> --- arch/arm/mach-qcom/scm.c | 13 +++++++++++++ arch/arm/mach-qcom/scm.h | 1 + 2 files changed, 14 insertions(+) diff --git a/arch/arm/mach-qcom/scm.c b/arch/arm/mach-qcom/scm.c index e80571f57ca4..7c62c03324f4 100644 --- a/arch/arm/mach-qcom/scm.c +++ b/arch/arm/mach-qcom/scm.c @@ -410,3 +410,16 @@ int scm_is_call_available(u32 svc_id, u32 cmd_id) return ret_val; } EXPORT_SYMBOL(scm_is_call_available); + +#define GET_FEAT_VERSION_CMD 3 +int scm_get_feat_version(u32 feat) +{ + if (scm_is_call_available(SCM_SVC_INFO, GET_FEAT_VERSION_CMD)) { + u32 version; + if (!scm_call(SCM_SVC_INFO, GET_FEAT_VERSION_CMD, &feat, + sizeof(feat), &version, sizeof(version))) + return version; + } + return 0; +} +EXPORT_SYMBOL(scm_get_feat_version); diff --git a/arch/arm/mach-qcom/scm.h b/arch/arm/mach-qcom/scm.h index f94c7279616a..6348b08524e7 100644 --- a/arch/arm/mach-qcom/scm.h +++ b/arch/arm/mach-qcom/scm.h @@ -26,5 +26,6 @@ extern s32 scm_call_atomic2(u32 svc, u32 cmd, u32 arg1, u32 arg2); extern u32 scm_get_version(void); extern int scm_is_call_available(u32 svc_id, u32 cmd_id); +extern int scm_get_feat_version(u32 feat); #endif -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
