Merge "scsi: ufs: optimize the sending of REQUEST_SENSE to device W-LU" (8e50707a) · Commits · e / devices / android_kernel_sony_msm8994

drivers/scsi/ufs/ufshcd.c

+4 −1

Original line number	Diff line number	Diff line
		@@ -4498,6 +4498,7 @@ static int ufshcd_probe_hba(struct ufs_hba *hba)
		ufshcd_set_ufs_dev_active(hba);
		ufshcd_force_reset_auto_bkops(hba);
		hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL;
		hba->wlun_dev_clr_ua = true;

		if (ufshcd_config_max_pwr_mode(hba))
		dev_err(hba->dev,
		@@ -5207,10 +5208,12 @@ static int ufshcd_set_dev_pwr_mode(struct ufs_hba *hba,
		* handling context.
		*/
		hba->host->eh_noresume = 1;
		if (pwr_mode != UFS_ACTIVE_PWR_MODE) {
		if (hba->wlun_dev_clr_ua) {
		ret = ufshcd_send_request_sense(hba, sdp);
		if (ret)
		goto out;
		/* Unit attention condition is cleared now */
		hba->wlun_dev_clr_ua = false;
		}

		cmd[4] = pwr_mode << 4;

+6 −0

Original line number	Diff line number	Diff line
		@@ -552,6 +552,12 @@ struct ufs_hba {
		struct debugfs_files debugfs_files;
		#endif
		bool is_sys_suspended;
		/*
		* Set this flag to indicate that UNIT ATTENTION condition should be
		* explicitly cleared for Device WLUN before issuing commands like
		* START STOP UNIT.
		*/
		bool wlun_dev_clr_ua;
		};

		/* Returns true if clocks can be gated. Otherwise false */