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Commit a685199b authored by Yaniv Gardi's avatar Yaniv Gardi
Browse files

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



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

Change-Id: I94ab353fed35889b92fb2f0baf5ee029894b999b
Signed-off-by: default avatarYaniv Gardi <ygardi@codeaurora.org>
parent 2c306f68

drivers/scsi/ufs/ufs-qcom.c

+10 −1
Original line number Original line Diff line number Diff line
@@ -1772,7 +1772,16 @@ 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_host_free;

	} 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;

		goto out;