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Commit 30309409 authored by Sujit Reddy Thumma's avatar Sujit Reddy Thumma
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scsi: ufs: Override auto suspend tunables for ufs 



Override auto suspend tunables for UFS device LUNs during
initialization so as to efficiently manage background operations
and the power consumption.

Change-Id: Id7ff9e8a5c83b7503a329e71936af3234a22895b
Signed-off-by: default avatarSujit Reddy Thumma <sthumma@codeaurora.org>
parent f261a170

drivers/scsi/ufs/ufshcd.c

+6 −0
Original line number Diff line number Diff line
@@ -93,6 +93,9 @@ 
/* Expose the flag value from utp_upiu_query.value */

#define MASK_QUERY_UPIU_FLAG_LOC 0xFF



/* default value of auto suspend is 3 seconds */

#define UFSHCD_AUTO_SUSPEND_DELAY_MS 3000 /* millisecs */



#define ufshcd_toggle_vreg(_dev, _vreg, _on)				\

	({                                                              \

		int _ret;                                               \
@@ -2598,6 +2601,9 @@ static int ufshcd_slave_configure(struct scsi_device *sdev) 
	blk_queue_update_dma_pad(q, PRDT_DATA_BYTE_COUNT_PAD - 1);

	blk_queue_max_segment_size(q, PRDT_DATA_BYTE_COUNT_MAX);



	sdev->autosuspend_delay = UFSHCD_AUTO_SUSPEND_DELAY_MS;

	sdev->use_rpm_auto = 1;



	return 0;

}