diff --git a/drivers/ufs/core/ufs-sysfs.c b/drivers/ufs/core/ufs-sysfs.c index b33f8656edb5..02e5468ad49d 100644 --- a/drivers/ufs/core/ufs-sysfs.c +++ b/drivers/ufs/core/ufs-sysfs.c @@ -141,7 +141,7 @@ static inline ssize_t ufs_sysfs_pm_lvl_store(struct device *dev, if (kstrtoul(buf, 0, &value)) return -EINVAL; - if (value >= UFS_PM_LVL_MAX) + if (value >= UFS_PM_LVL_MAX || value < hba->pm_lvl_min) return -EINVAL; if (ufs_pm_lvl_states[value].dev_state == UFS_DEEPSLEEP_PWR_MODE && diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index 19154228780b..a64c19563b03 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -834,6 +834,7 @@ enum ufshcd_mcq_opr { * @uic_link_state: active state of the link to the UFS device. * @rpm_lvl: desired UFS power management level during runtime PM. * @spm_lvl: desired UFS power management level during system PM. + * @pm_lvl_min: minimum supported power management level. * @pm_op_in_progress: whether or not a PM operation is in progress. * @ahit: value of Auto-Hibernate Idle Timer register. * @outstanding_tasks: Bits representing outstanding task requests @@ -972,6 +973,7 @@ struct ufs_hba { enum ufs_pm_level rpm_lvl; /* Desired UFS power management level during system PM */ enum ufs_pm_level spm_lvl; + enum ufs_pm_level pm_lvl_min; int pm_op_in_progress; /* Auto-Hibernate Idle Timer register value */