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soc: qcom: Add retry mechanism to encryption related Secure Monitor calls

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SCM calls used for File Based Encryption are using no retry
mechanism currently, but when TZ is busy, the scm calls could fail.
replaced scm call to avoid failure.

Test: build compilation successful and tested by customer.

Change-Id: I5de4f5f63895cfaadeff2ff8651efcc229850a94
Signed-off-by: Saikiran Muppidi <quic_saikmupp@quicinc.com>
This commit is contained in:
Saikiran Muppidi
2022-04-21 13:06:07 +05:30
parent 286149f56c
commit 8b983d980f
1 changed files with 1 additions and 1 deletions
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2
drivers/soc/qcom/crypto-qti-tz.c
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@@ -126,7 +126,7 @@ int crypto_qti_tz_raw_secret(const u8 *wrapped_key,
memset(shm_secret.vaddr, 0, secret_size);
dmac_flush_range(shm_secret.vaddr, shm_secret.vaddr + secret_size);
err = scm_call2_noretry(smc_id, &desc);
err = scm_call2(smc_id, &desc);
if (err) {
pr_err("%s failed to retrieve raw secret\n", __func__, err);
return err;