Merge "scsi: ufs: add support to power collapse UFS host controller" (a83a0066) · Commits · e / devices / android_kernel_sony_msm8994

drivers/scsi/ufs/ufshcd.c

+16 −1

Original line number	Diff line number	Diff line
		@@ -5645,6 +5645,18 @@ out:
		return ret;
		}

		static void ufshcd_hba_vreg_set_lpm(struct ufs_hba *hba)
		{
		if (ufshcd_is_link_off(hba))
		ufshcd_setup_hba_vreg(hba, false);
		}

		static void ufshcd_hba_vreg_set_hpm(struct ufs_hba *hba)
		{
		if (ufshcd_is_link_off(hba))
		ufshcd_setup_hba_vreg(hba, true);
		}

		/**
		* ufshcd_suspend - helper function for suspend operations
		* @hba: per adapter instance
		@@ -5770,7 +5782,8 @@ disable_clks:
		* host controller trasanction expected till resume.
		*/
		ufshcd_disable_irq(hba);

		/* Put the host controller in low power mode if possible */
		ufshcd_hba_vreg_set_lpm(hba);
		goto out;

		vops_resume:
		@@ -5816,6 +5829,8 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op)

		hba->pm_op_in_progress = 1;
		old_link_state = hba->uic_link_state;

		ufshcd_hba_vreg_set_hpm(hba);
		/* Make sure clocks are enabled before accessing controller */
		ret = ufshcd_setup_clocks(hba, true);
		if (ret)