Merge "scsi : ufs-qcom: Add provision to set qcom specific supplies in LPM" (2ddb7d0a) · Commits · e / devices / android_kernel_fairphone_FP4

drivers/scsi/ufs/ufs-qcom.c

+22 −0

Original line number	Diff line number	Diff line
		@@ -745,6 +745,17 @@ static int ufs_qcom_link_startup_notify(struct ufs_hba *hba,
		return err;
		}

		static int ufshcd_qcom_set_vreg_load(struct ufs_vreg *vreg, int ua)
		{
		if (!vreg)
		return 0;
		else if (vreg->unused)
		return 0;
		else
		return regulator_set_load(vreg->reg, ua);

		}

		static int ufs_qcom_config_vreg(struct device *dev,
		struct ufs_vreg *vreg, bool on)
		{
		@@ -838,6 +849,9 @@ static int ufs_qcom_suspend(struct ufs_hba *hba, enum ufs_pm_op pm_op)
		if (host->vddp_ref_clk && ufs_qcom_is_link_off(hba))
		ret = ufs_qcom_disable_vreg(hba->dev,
		host->vddp_ref_clk);
		else if (host->vddp_ref_clk && ufs_qcom_is_link_hibern8(hba))
		ret = ufshcd_qcom_set_vreg_load(host->vddp_ref_clk,
		host->vddp_ref_clk->min_uA);

		if (host->vccq_parent && !hba->auto_bkops_enabled)
		ufs_qcom_config_vreg(hba->dev,
		@@ -875,6 +889,10 @@ static int ufs_qcom_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)
		hba->spm_lvl > UFS_PM_LVL_3))
		ufs_qcom_enable_vreg(hba->dev,
		host->vddp_ref_clk);
		else if (host->vddp_ref_clk && ufs_qcom_is_link_hibern8(hba))
		ufshcd_qcom_set_vreg_load(host->vddp_ref_clk,
		host->vddp_ref_clk->max_uA);

		if (host->vccq_parent)
		ufs_qcom_config_vreg(hba->dev, host->vccq_parent, true);

		@@ -2033,6 +2051,10 @@ static int ufs_qcom_parse_reg_info(struct ufs_qcom_host host, char name,
		goto out;
		}

		snprintf(prop_name, MAX_PROP_SIZE, "%s-min-microamp", name);
		if (of_property_read_u32(np, prop_name, &vreg->min_uA))
		vreg->min_uA = UFS_VREG_LPM_LOAD_UA;

		vreg->reg = devm_regulator_get(dev, vreg->name);
		if (IS_ERR(vreg->reg)) {
		ret = PTR_ERR(vreg->reg);