diff options
| author | Seungwon Jeon <tgih.jun@samsung.com> | 2013-08-31 16:10:22 (GMT) |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2013-09-06 23:06:40 (GMT) |
| commit | 53b3d9c3fdda94d14392dd221c67e24700b1fed6 (patch) | |
| tree | a5198f3de41a71b6f2461fbf9687289254e0eaae /drivers/scsi/ufs/ufshci.h | |
| parent | 12b4fdb4f6bccb5459a2f75fbe0eab253bfceab4 (diff) | |
| download | linux-53b3d9c3fdda94d14392dd221c67e24700b1fed6.tar.xz | |
[SCSI] ufs: add operation for the uic power mode change
Setting PA_PWRMode using DME_SET triggers the power mode
change. And then the result will be given by the HCS.UPMCRS.
This operation should be done atomically.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Tested-by: Yaniv Gardi <ygardi@codeaurora.org>
Signed-off-by: Santosh Y <santoshsy@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/ufs/ufshci.h')
| -rw-r--r-- | drivers/scsi/ufs/ufshci.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h index 1e1fe26..0475c66 100644 --- a/drivers/scsi/ufs/ufshci.h +++ b/drivers/scsi/ufs/ufshci.h @@ -124,6 +124,9 @@ enum { #define CONTROLLER_FATAL_ERROR UFS_BIT(16) #define SYSTEM_BUS_FATAL_ERROR UFS_BIT(17) +#define UFSHCD_UIC_MASK (UIC_COMMAND_COMPL |\ + UIC_POWER_MODE) + #define UFSHCD_ERROR_MASK (UIC_ERROR |\ DEVICE_FATAL_ERROR |\ CONTROLLER_FATAL_ERROR |\ @@ -142,6 +145,15 @@ enum { #define DEVICE_ERROR_INDICATOR UFS_BIT(5) #define UIC_POWER_MODE_CHANGE_REQ_STATUS_MASK UFS_MASK(0x7, 8) +enum { + PWR_OK = 0x0, + PWR_LOCAL = 0x01, + PWR_REMOTE = 0x02, + PWR_BUSY = 0x03, + PWR_ERROR_CAP = 0x04, + PWR_FATAL_ERROR = 0x05, +}; + /* HCE - Host Controller Enable 34h */ #define CONTROLLER_ENABLE UFS_BIT(0) #define CONTROLLER_DISABLE 0x0 |