diff options
| author | Stephen Boyd <sboyd@codeaurora.org> | 2015-01-20 20:05:01 +0800 |
|---|---|---|
| committer | Andy Green <andy.green@linaro.org> | 2015-01-22 00:57:53 +0800 |
| commit | 35f325fea6bc95f0b5ea5c67a74e2f4b440dad3e (patch) | |
| tree | f4bf9cf8eb0db6aa722c384fe2de0ba323aad15b | |
| parent | 2c2a94cf9cc52001bde2f2a5f6fd47de09cd6042 (diff) | |
ARM: qcom: scm: Add a feat version query API
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 <sboyd@codeaurora.org>
Signed-off-by: Kumar Gala <galak@codeaurora.org>
| -rw-r--r-- | arch/arm/mach-qcom/scm.c | 13 | ||||
| -rw-r--r-- | arch/arm/mach-qcom/scm.h | 1 |
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/mach-qcom/scm.c b/arch/arm/mach-qcom/scm.c index 081099c37574..884fcd61a76d 100644 --- a/arch/arm/mach-qcom/scm.c +++ b/arch/arm/mach-qcom/scm.c @@ -338,3 +338,16 @@ 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 6fa8d55981a3..dcb4098802c0 100644 --- a/arch/arm/mach-qcom/scm.h +++ b/arch/arm/mach-qcom/scm.h @@ -23,5 +23,6 @@ extern int scm_call(u32 svc_id, u32 cmd_id, const void *cmd_buf, size_t cmd_len, 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 |