RE: [PATCH V3 2/2] scsi: ufs: Set fDeviceInit flag to initiate device initialization

2013-07-10 Thread Dolev Raviv
> On Tuesday, July 09, 2013, Sujit Reddy Thumma wrote: >> From: Dolev Raviv >> Allow UFS device to complete its initialization and accept >> SCSI commands by setting fDeviceInit flag. The device may take >> time for this operation and hence the host should poll until >> fDeviceInit flag is toggled

RE: [PATCH V3 2/2] scsi: ufs: Add runtime PM support for UFS host controller driver

2013-07-10 Thread Seungwon Jeon
On Tue, July 09, 2013, Sujit Reddy Thumma wrote: > Add runtime PM helpers to suspend/resume UFS controller at runtime. > Enable runtime PM by default for pci and platform drivers as the > initialized hardware can suspend if it is not used after bootup. > > Signed-off-by: Sujit Reddy Thumma > ---

RE: [PATCH V3 1/2] scsi: ufs: Add support for host assisted background operations

2013-07-10 Thread Seungwon Jeon
I'm not sure that BKOPS with runtime-pm associates. Do you think it's helpful for power management? How about hibernation scheme for runtime-pm? I'm testing and I can introduce soon. On Tue, July 09, 2013, Sujit Reddy Thumma wrote: > Background operations in the UFS device can be disabled by > the

RE: [PATCH V3 2/2] scsi: ufs: Set fDeviceInit flag to initiate device initialization

2013-07-10 Thread Seungwon Jeon
On Tuesday, July 09, 2013, Sujit Reddy Thumma wrote: > From: Dolev Raviv > > Allow UFS device to complete its initialization and accept > SCSI commands by setting fDeviceInit flag. The device may take > time for this operation and hence the host should poll until > fDeviceInit flag is toggled to

RE: [PATCH V3 1/2] scsi: ufs: Add support for sending NOP OUT UPIU

2013-07-10 Thread Seungwon Jeon
On Tue, July 09, 2013, Sujit Reddy Thumma wrote: > As part of device initialization sequence, sending NOP OUT UPIU and > waiting for NOP IN UPIU response is mandatory. This confirms that the > device UFS Transport (UTP) layer is functional and the host can configure > the device with further comman