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FROMLIST: scsi: ufs: clear uac for RPMB after ufshcd resets

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If RPMB is not provisioned, we may see RPMB failure after UFS suspend/resume.
Inject request_sense to clear uac in ufshcd reset flow.

Link: https://lore.kernel.org/linux-scsi/20201201041402.3860525-1-jaegeuk@kernel.org/
Signed-off-by: Randall Huang <huangrandall@google.com>
Signed-off-by: Leo Liou <leoliou@google.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
Change-Id: Icf52bab05474f5180d79aa5419f2fc174b521e22
This commit is contained in:
Randall Huang
2020-11-24 15:29:58 +08:00
committed by Jaegeuk Kim
parent ea89512d45
commit f2da571038
1 changed files with 4 additions and 8 deletions
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12
drivers/scsi/ufs/ufshcd.c
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@@ -220,6 +220,7 @@ static int ufshcd_reset_and_restore(struct ufs_hba *hba);
static int ufshcd_eh_host_reset_handler(struct scsi_cmnd *cmd);
static int ufshcd_clear_tm_cmd(struct ufs_hba *hba, int tag);
static void ufshcd_hba_exit(struct ufs_hba *hba);
static int ufshcd_clear_ua_wluns(struct ufs_hba *hba);
static int ufshcd_probe_hba(struct ufs_hba *hba, bool async);
static int __ufshcd_setup_clocks(struct ufs_hba *hba, bool on,
bool skip_ref_clk);
@@ -6872,7 +6873,8 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba)
/* Establish the link again and restore the device */
err = ufshcd_probe_hba(hba, false);
if (!err)
ufshcd_clear_ua_wluns(hba);
out:
if (err)
dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err);
@@ -8363,13 +8365,7 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
* handling context.
*/
hba->host->eh_noresume = 1;
if (hba->wlun_dev_clr_ua) {
ret = ufshcd_send_request_sense(hba, sdp);
if (ret)
goto out;
/* Unit attention condition is cleared now */
hba->wlun_dev_clr_ua = false;
}
ufshcd_clear_ua_wluns(hba);
cmd[4] = pwr_mode << 4;