Merge "scsi: ufs: Support query the spm/rpm level from device tree" (bccedcee) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/scsi/ufs/ufs-qcom.c

+24 −0

Original line number	Diff line number	Diff line
		@@ -1598,6 +1598,28 @@ static int ufs_qcom_quirk_host_pa_saveconfigtime(struct ufs_hba *hba)
		return err;
		}

		static inline bool
		ufshcd_is_valid_pm_lvl(enum ufs_pm_level lvl)
		{
		return lvl >= 0 && lvl < UFS_PM_LVL_MAX;
		}

		static void ufshcd_parse_pm_levels(struct ufs_hba *hba)
		{
		struct device *dev = hba->dev;
		struct device_node *np = dev->of_node;
		enum ufs_pm_level rpm_lvl = UFS_PM_LVL_MAX, spm_lvl = UFS_PM_LVL_MAX;

		if (!np)
		return;
		if (!of_property_read_u32(np, "rpm-level", &rpm_lvl) &&
		ufshcd_is_valid_pm_lvl(rpm_lvl))
		hba->rpm_lvl = rpm_lvl;
		if (!of_property_read_u32(np, "spm-level", &spm_lvl) &&
		ufshcd_is_valid_pm_lvl(spm_lvl))
		hba->spm_lvl = spm_lvl;
		}

		static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
		{
		unsigned long flags;
		@@ -1619,6 +1641,8 @@ static int ufs_qcom_apply_dev_quirks(struct ufs_hba *hba)
		if (hba->dev_info.wmanufacturerid == UFS_VENDOR_WDC)
		hba->dev_quirks \|= UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE;

		ufshcd_parse_pm_levels(hba);

		return err;
		}