renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-27 06:34:11 +08:00
Code

scsi: ufs-qcom: add probe_defer in case phy driver not probed yet

Browse Source 
In case UFS driver is probed before the phy driver does, the UFS driver
should return a PROBE_DEFER code.

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Signed-off-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Yaniv Gardi 2016-12-05 19:25:15 -08:00 committed by Martin K. Petersen
parent c01848c67d
commit ab436706e4
1 changed files with 10 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
drivers/scsi/ufs/ufs-qcom.c
View File

@ -1194,7 +1194,16 @@ static int ufs_qcom_init(struct ufs_hba *hba)
*/ */
host->generic_phy = devm_phy_get(dev, "ufsphy"); host->generic_phy = devm_phy_get(dev, "ufsphy");
if (IS_ERR(host->generic_phy)) { if (host->generic_phy == ERR_PTR(-EPROBE_DEFER)) {
/*
* UFS driver might be probed before the phy driver does.
* In that case we would like to return EPROBE_DEFER code.
*/
err = -EPROBE_DEFER;
dev_warn(dev, "%s: required phy device. hasn't probed yet. err = %d\n",
__func__, err);
goto out_variant_clear;
} else if (IS_ERR(host->generic_phy)) {
err = PTR_ERR(host->generic_phy); err = PTR_ERR(host->generic_phy);
dev_err(dev, "%s: PHY get failed %d\n", __func__, err); dev_err(dev, "%s: PHY get failed %d\n", __func__, err);
goto out_variant_clear; goto out_variant_clear;