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scsi: ufs: exynos: Don't resume FMP when crypto support is disabled

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If exynos_ufs_fmp_init() did not enable FMP support, then
exynos_ufs_fmp_resume() should not execute the FMP-related SMC calls.

Fixes: c96499fcb4 ("scsi: ufs: exynos: Add support for Flash Memory Protector (FMP)")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Link: https://lore.kernel.org/r/20240721183840.209284-1-ebiggers@kernel.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Eric Biggers 2024-07-21 11:38:40 -07:00 committed by Martin K. Petersen
parent 82dbb57ac8
commit 47398f49da
1 changed files with 3 additions and 0 deletions
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3
drivers/ufs/host/ufs-exynos.c
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@ -1293,6 +1293,9 @@ static void exynos_ufs_fmp_resume(struct ufs_hba *hba)
{
struct arm_smccc_res res;
if (!(hba->caps & UFSHCD_CAP_CRYPTO))
return;
arm_smccc_smc(SMC_CMD_FMP_SECURITY, 0, SMU_EMBEDDED, CFG_DESCTYPE_3,
0, 0, 0, 0, &res);
if (res.a0)