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| author | Andy Gross | 2017-01-17 06:24:15 +0100 |
|---|---|---|
| committer | Andy Gross | 2017-01-17 06:45:04 +0100 |
| commit | a811b420b6c13759540070c0e9541b7cd8569168 (patch) | |
| tree | 29a25adf699ded7909e3075dd3a1e30deacaccdd /drivers/firmware/qcom_scm-64.c | |
| parent | MAINTAINERS: Update the files to include the Qualcomm DMA folder (diff) | |
| download | kernel-qcow2-linux-a811b420b6c13759540070c0e9541b7cd8569168.tar.gz kernel-qcow2-linux-a811b420b6c13759540070c0e9541b7cd8569168.tar.xz kernel-qcow2-linux-a811b420b6c13759540070c0e9541b7cd8569168.zip | |
firmware: qcom_scm: Add set remote state API
This patch adds a set remote state SCM API. This will be used by the
Venus and GPU subsystems to set state on the remote processors.
This work was based on two patch sets by Jordan Crouse and Stanimir
Varbanov.
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'drivers/firmware/qcom_scm-64.c')
| -rw-r--r-- | drivers/firmware/qcom_scm-64.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c index 4a0f5ead4fb5..4b220abaf363 100644 --- a/drivers/firmware/qcom_scm-64.c +++ b/drivers/firmware/qcom_scm-64.c @@ -358,3 +358,19 @@ int __qcom_scm_pas_mss_reset(struct device *dev, bool reset) return ret ? : res.a1; } + +int __qcom_scm_set_remote_state(struct device *dev, u32 state, u32 id) +{ + struct qcom_scm_desc desc = {0}; + struct arm_smccc_res res; + int ret; + + desc.args[0] = state; + desc.args[1] = id; + desc.arginfo = QCOM_SCM_ARGS(2); + + ret = qcom_scm_call(dev, QCOM_SCM_SVC_BOOT, QCOM_SCM_SET_REMOTE_STATE, + &desc, &res); + + return ret ? : res.a1; +} |