|  | # | 
|  | # Kernel configuration file for the UFS Host Controller | 
|  | # | 
|  | # This code is based on drivers/scsi/ufs/Kconfig | 
|  | # Copyright (C) 2011-2013 Samsung India Software Operations | 
|  | # | 
|  | # Authors: | 
|  | #	Santosh Yaraganavi <santosh.sy@samsung.com> | 
|  | #	Vinayak Holikatti <h.vinayak@samsung.com> | 
|  | # | 
|  | # This program is free software; you can redistribute it and/or | 
|  | # modify it under the terms of the GNU General Public License | 
|  | # as published by the Free Software Foundation; either version 2 | 
|  | # of the License, or (at your option) any later version. | 
|  | # See the COPYING file in the top-level directory or visit | 
|  | # <http://www.gnu.org/licenses/gpl-2.0.html> | 
|  | # | 
|  | # This program is distributed in the hope that it will be useful, | 
|  | # but WITHOUT ANY WARRANTY; without even the implied warranty of | 
|  | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the | 
|  | # GNU General Public License for more details. | 
|  | # | 
|  | # This program is provided "AS IS" and "WITH ALL FAULTS" and | 
|  | # without warranty of any kind. You are solely responsible for | 
|  | # determining the appropriateness of using and distributing | 
|  | # the program and assume all risks associated with your exercise | 
|  | # of rights with respect to the program, including but not limited | 
|  | # to infringement of third party rights, the risks and costs of | 
|  | # program errors, damage to or loss of data, programs or equipment, | 
|  | # and unavailability or interruption of operations. Under no | 
|  | # circumstances will the contributor of this Program be liable for | 
|  | # any damages of any kind arising from your use or distribution of | 
|  | # this program. | 
|  |  | 
|  | config SCSI_UFSHCD | 
|  | tristate "Universal Flash Storage Controller Driver Core" | 
|  | depends on SCSI && SCSI_DMA | 
|  | select PM_DEVFREQ | 
|  | select DEVFREQ_GOV_SIMPLE_ONDEMAND | 
|  | ---help--- | 
|  | This selects the support for UFS devices in Linux, say Y and make | 
|  | sure that you know the name of your UFS host adapter (the card | 
|  | inside your computer that "speaks" the UFS protocol, also | 
|  | called UFS Host Controller), because you will be asked for it. | 
|  | The module will be called ufshcd. | 
|  |  | 
|  | To compile this driver as a module, choose M here and read | 
|  | <file:Documentation/scsi/ufs.txt>. | 
|  | However, do not compile this as a module if your root file system | 
|  | (the one containing the directory /) is located on a UFS device. | 
|  |  | 
|  | config SCSI_UFSHCD_PCI | 
|  | tristate "PCI bus based UFS Controller support" | 
|  | depends on SCSI_UFSHCD && PCI | 
|  | ---help--- | 
|  | This selects the PCI UFS Host Controller Interface. Select this if | 
|  | you have UFS Host Controller with PCI Interface. | 
|  |  | 
|  | If you have a controller with this interface, say Y or M here. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | config SCSI_UFSHCD_PLATFORM | 
|  | tristate "Platform bus based UFS Controller support" | 
|  | depends on SCSI_UFSHCD | 
|  | ---help--- | 
|  | This selects the UFS host controller support. Select this if | 
|  | you have an UFS controller on Platform bus. | 
|  |  | 
|  | If you have a controller with this interface, say Y or M here. | 
|  |  | 
|  | If unsure, say N. | 
|  |  | 
|  | config SCSI_UFS_QCOM | 
|  | tristate "QCOM specific hooks to UFS controller platform driver" | 
|  | depends on SCSI_UFSHCD_PLATFORM && ARCH_QCOM | 
|  | select PHY_QCOM_UFS | 
|  | help | 
|  | This selects the QCOM specific additions to UFSHCD platform driver. | 
|  | UFS host on QCOM needs some vendor specific configuration before | 
|  | accessing the hardware which includes PHY configuration and vendor | 
|  | specific registers. | 
|  |  | 
|  | Select this if you have UFS controller on QCOM chipset. | 
|  | If unsure, say N. |