Re: [PATCH v2 02/11] scsi: ufs: exynos: add check inside exynos_ufs_config_smu()
From: Tudor Ambarus <tudor.ambarus@linaro.org>
Date: 2024-10-30 08:12:32
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linux-devicetree, linux-samsung-soc, linux-scsi, lkml
On 10/25/24 2:14 PM, Peter Griffin wrote:
Move the EXYNOS_UFS_OPT_UFSPR_SECURE check inside exynos_ufs_config_smu(). This way all call sites will benefit from the check. This fixes a bug currently in the exynos_ufs_resume() path on gs101 which will cause a serror.
because resume() calls exynos_ufs_config_smu() and we ended up accessing register fields that we shouldn't have.
Fixes: d11e0a318df8 ("scsi: ufs: exynos: Add support for Tensor gs101 SoC")Cc: stable@vger.kernel.org Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
quoted hunk ↗ jump to hunk
Signed-off-by: Peter Griffin <peter.griffin@linaro.org> --- drivers/ufs/host/ufs-exynos.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index e25de4b86ac0..939d08bce545 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c@@ -724,6 +724,9 @@ static void exynos_ufs_config_smu(struct exynos_ufs *ufs) { u32 reg, val; + if (ufs->opts & EXYNOS_UFS_OPT_UFSPR_SECURE) + return; + exynos_ufs_disable_auto_ctrl_hcc_save(ufs, &val); /* make encryption disabled by default */@@ -1457,8 +1460,8 @@ static int exynos_ufs_init(struct ufs_hba *hba) if (ret) goto out; exynos_ufs_specify_phy_time_attr(ufs); - if (!(ufs->opts & EXYNOS_UFS_OPT_UFSPR_SECURE)) - exynos_ufs_config_smu(ufs); + + exynos_ufs_config_smu(ufs); hba->host->dma_alignment = DATA_UNIT_SIZE - 1; return 0;