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| author | Bjorn Andersson <bjorn.andersson@linaro.org> | 2016-06-17 20:40:43 +0300 |
|---|---|---|
| committer | Andy Gross <andy.gross@linaro.org> | 2016-06-25 06:53:52 +0300 |
| commit | dd4fe5b292226f2459305965c960d8dc39f36e0f (patch) | |
| tree | 5a9ec8e6bbaa32cb2c518aad547892a48a0af58d /drivers/firmware/qcom_scm-32.c | |
| parent | f01e90fe34f563a5e189d4070de4a23948105642 (diff) | |
| download | linux-dd4fe5b292226f2459305965c960d8dc39f36e0f.tar.xz | |
firmware: qcom: scm: Expose PAS command 10 as reset-controller
PAS command 10 is used to assert and deassert the MSS reset via
TrustZone, expose this as a reset-controller to mimic the direct
access case.
Cc: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
Diffstat (limited to 'drivers/firmware/qcom_scm-32.c')
| -rw-r--r-- | drivers/firmware/qcom_scm-32.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c index 7cb6a5d648fa..c6aeedbdcbb0 100644 --- a/drivers/firmware/qcom_scm-32.c +++ b/drivers/firmware/qcom_scm-32.c @@ -547,3 +547,16 @@ int __qcom_scm_pas_shutdown(struct device *dev, u32 peripheral) return ret ? : le32_to_cpu(out); } + +int __qcom_scm_pas_mss_reset(struct device *dev, bool reset) +{ + __le32 out; + __le32 in = cpu_to_le32(reset); + int ret; + + ret = qcom_scm_call(dev, QCOM_SCM_SVC_PIL, QCOM_SCM_PAS_MSS_RESET, + &in, sizeof(in), + &out, sizeof(out)); + + return ret ? : le32_to_cpu(out); +} |