6.6-stable review patch. If anyone has any objections, please let me know.
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From: Peter Wang peter.wang@mediatek.com
[ Upstream commit 878ed88c50bfb14d972dd3b86a1c8188c58de4e5 ]
Modify the reset sequence to ensure that the device reset pin is set low before the host is disabled. This change enhances the stability of the reset process by ensuring the correct order of operations.
Signed-off-by: Peter Wang peter.wang@mediatek.com Link: https://lore.kernel.org/r/20250811131423.3444014-10-peter.wang@mediatek.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/ufs/host/ufs-mediatek.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c index 7b506220438bb..90a698f8a082e 100644 --- a/drivers/ufs/host/ufs-mediatek.c +++ b/drivers/ufs/host/ufs-mediatek.c @@ -1234,11 +1234,11 @@ 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);
+ /* disable hba in middle of device reset */ + ufshcd_hba_stop(hba); + /* * The reset signal is active low. UFS devices shall detect * more than or equal to 1us of positive or negative RST_n