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| author | Rob Clark <robdclark@gmail.com> | 2019-08-23 15:16:34 +0300 |
|---|---|---|
| committer | Rob Clark <robdclark@chromium.org> | 2019-10-07 18:17:27 +0300 |
| commit | 0434a4061471a9afc2b2061add496e58ba4bb92d (patch) | |
| tree | 4fe78f65078d57d2a039b869a263e0c7a59d464b /drivers/firmware/qcom_scm.c | |
| parent | b0a1614fb1f58520938968ebe1f4f11bcf34839e (diff) | |
| download | linux-0434a4061471a9afc2b2061add496e58ba4bb92d.tar.xz | |
firmware: qcom: scm: add support to restore secure config to qcm_scm-32
Add support to restore the secure configuration for qcm_scm-32.c. This
is needed by the On Chip MEMory (OCMEM) that is present on some
Snapdragon devices.
Signed-off-by: Rob Clark <robdclark@gmail.com>
[masneyb@onstation.org: ported to latest kernel; set ctx_bank_num to
spare parameter.]
Signed-off-by: Brian Masney <masneyb@onstation.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Gabriel Francisco <frc.gabrielgmail.com>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/firmware/qcom_scm.c')
| -rw-r--r-- | drivers/firmware/qcom_scm.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/firmware/qcom_scm.c b/drivers/firmware/qcom_scm.c index 7e285ff3961d..27c1d98a34e6 100644 --- a/drivers/firmware/qcom_scm.c +++ b/drivers/firmware/qcom_scm.c @@ -367,6 +367,19 @@ static const struct reset_control_ops qcom_scm_pas_reset_ops = { .deassert = qcom_scm_pas_reset_deassert, }; +/** + * qcom_scm_restore_sec_cfg_available() - Check if secure environment + * supports restore security config interface. + * + * Return true if restore-cfg interface is supported, false if not. + */ +bool qcom_scm_restore_sec_cfg_available(void) +{ + return __qcom_scm_is_call_available(__scm->dev, QCOM_SCM_SVC_MP, + QCOM_SCM_RESTORE_SEC_CFG); +} +EXPORT_SYMBOL(qcom_scm_restore_sec_cfg_available); + int qcom_scm_restore_sec_cfg(u32 device_id, u32 spare) { return __qcom_scm_restore_sec_cfg(__scm->dev, device_id, spare); |