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FROMGIT: scsi: ufs: ufs-mediatek: Disable HCI before HW reset

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MediaTek ufshci needs to be disabled before HW reset to avoid potential
issues.

Bug: 191731858
Change-Id: Ie8c9789ef05105923ca2039d38da3b1a1db0932d
(cherry picked from commit f9c602f3bd9c79c06ccd7621744472a64e93fd49
git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git for-next)
Link: https://lore.kernel.org/r/20210528033624.12170-3-alice.chao@mediatek.com
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Alice.Chao <alice.chao@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
This commit is contained in:
Alice.Chao
2021-05-28 11:36:22 +08:00
committed by Stanley Chu
parent 0f44c7edbc
commit bb105230c4
1 changed files with 3 additions and 0 deletions
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3
drivers/scsi/ufs/ufs-mediatek.c
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@@ -853,6 +853,9 @@ static int ufs_mtk_device_reset(struct ufs_hba *hba)
{
struct arm_smccc_res res;
/* disable hba before device reset */
ufshcd_hba_stop(hba);
ufs_mtk_device_reset_ctrl(0, res);
/*