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| author | Kiwoong Kim <kwmad.kim@samsung.com> | 2016-11-10 21:17:43 +0900 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2016-11-12 10:35:42 -0500 |
| commit | ee32c9098f2eff12c0e020aac2acade8250c80e4 (patch) | |
| tree | bcfdea9b2bd968809c423695361fb4ffcb2e6703 /drivers/scsi/ufs/ufshcd.c | |
| parent | d2877be42f35a8420dc452cf775b5f99b55169aa (diff) | |
| download | lwn-ee32c9098f2eff12c0e020aac2acade8250c80e4.tar.gz lwn-ee32c9098f2eff12c0e020aac2acade8250c80e4.zip | |
scsi: ufs: introduce hibern8_notify callback
Some UFS host controller may need to configure some things around
hibern8 enter/exit
Signed-off-by: Kiwoong Kim <kwmad.kim@samsung.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshcd.c')
| -rw-r--r-- | drivers/scsi/ufs/ufshcd.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 043e777712ae..576b29c11d7a 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2697,6 +2697,8 @@ static int __ufshcd_uic_hibern8_enter(struct ufs_hba *hba) int ret; struct uic_command uic_cmd = {0}; + ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_ENTER, PRE_CHANGE); + uic_cmd.command = UIC_CMD_DME_HIBER_ENTER; ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd); @@ -2710,7 +2712,9 @@ static int __ufshcd_uic_hibern8_enter(struct ufs_hba *hba) */ if (ufshcd_link_recovery(hba)) ret = -ENOLINK; - } + } else + ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_ENTER, + POST_CHANGE); return ret; } @@ -2733,13 +2737,17 @@ static int ufshcd_uic_hibern8_exit(struct ufs_hba *hba) struct uic_command uic_cmd = {0}; int ret; + ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT, PRE_CHANGE); + uic_cmd.command = UIC_CMD_DME_HIBER_EXIT; ret = ufshcd_uic_pwr_ctrl(hba, &uic_cmd); if (ret) { dev_err(hba->dev, "%s: hibern8 exit failed. ret = %d\n", __func__, ret); ret = ufshcd_link_recovery(hba); - } + } else + ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT, + POST_CHANGE); return ret; } |