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scsi: ufs: introduce UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE quirk

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Some UFS host controllers may only allow accessing the peer DME attribute
in AUTO mode (FAST AUTO or SLOW AUTO) hence we had added a quirk for
switching to AUTO power mode before accessing the peer DME attribute.

Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>
Reviewed-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
This commit is contained in:
Yaniv Gardi
2015-05-17 18:55:03 +03:00
committed by James Bottomley
parent 8163743e23
commit 874237f7f2
2 changed files with 38 additions and 0 deletions
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drivers/scsi/ufs/ufshcd.h
+7
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@@ -442,6 +442,13 @@ struct ufs_hba {
*/
#define UFSHCD_QUIRK_BROKEN_PA_RXHSUNTERMCAP UFS_BIT(3)
/*
* This quirk needs to be enabled if the host contoller only allows
* accessing the peer dme attributes in AUTO mode (FAST AUTO or
* SLOW AUTO).
*/
#define UFSHCD_QUIRK_DME_PEER_ACCESS_AUTO_MODE UFS_BIT(4)
unsigned int quirks; /* Deviations from standard UFSHCI spec. */
wait_queue_head_t tm_wq;