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Commit 5645285c authored by Nitin Rawat's avatar Nitin Rawat Committed by Gerrit - the friendly Code Review server
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phy: ufs: put regulator to LPM mode 



If regulator is marked as always on then we should atleast put
it in LPM mode as we can't disabled it.

Change-Id: I1c2f398d4a3b62d9e641ae53b7c4806b69c4862b
Signed-off-by: default avatarSubhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: default avatarNitin Rawat <nitirawa@codeaurora.org>
parent 2aef1c3d

drivers/phy/phy-qcom-ufs.c

+17 −1
Original line number Diff line number Diff line
@@ -496,9 +496,25 @@ int ufs_qcom_phy_disable_vreg(struct phy *phy, 
	struct device *dev = ufs_qcom_phy->dev;

	int ret = 0;



	if (!vreg || !vreg->enabled || vreg->is_always_on)

	if (!vreg || !vreg->enabled)

		goto out;



	if (vreg->is_always_on) {

		/* voting 0 uA load will keep regulator in LPM mode */

		ret = regulator_set_load(vreg->reg, 0);

		if (ret >= 0) {

			/*

			 * regulator_set_load() returns new regulator

			 * mode upon success

			 */

			ret = 0;

		} else {

			dev_err(dev, "%s: %s set optimum mode(uA_load=0) failed, err=%d\n",

					__func__, vreg->name, ret);

		}

		goto out;

	}



	ret = regulator_disable(vreg->reg);



	if (!ret) {