linux-kernel - [PATCH v6 2/2] scsi: ufs: Remove unused device quirks

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Date:   Wed, 27 Feb 2019 11:43:04 +0100
From:   Marc Gonzalez <marc.w.gonzalez@...e.fr>
To:     SCSI <linux-scsi@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Cc:     Jeffrey Hugo <jhugo@...eaurora.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Evan Green <evgreen@...omium.org>,
        Douglas Anderson <dianders@...omium.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Avri Altman <avri.altman@....com>,
        Pedro Sousa <pedrom.sousa@...opsys.com>,
        Bart Van Assche <bart.vanassche@....com>,
        Stanislav Nijnikov <stanislav.nijnikov@....com>,
        Alex Lemberg <alex.lemberg@....com>,
        Ohad Sharabi <ohad.sharabi@....com>,
        Hannes Reinecke <hare@...e.de>, Kyuho Choi <kyuho.choi@...com>,
        Martin Petersen <martin.petersen@...cle.com>
Subject: [PATCH v6 2/2] scsi: ufs: Remove unused device quirks

The UFSHC driver defines a few quirks that are not used anywhere:

UFS_DEVICE_QUIRK_BROKEN_LCC
UFS_DEVICE_NO_VCCQ
UFS_DEVICE_QUIRK_NO_LINK_OFF
UFS_DEVICE_NO_FASTAUTO

Let's remove them.

Acked-by: Avri Altman <avri.altman@....com>
Acked-by: Alim Akhtar <alim.akhtar@...sung.com>
Reviewed-by: Evan Green <evgreen@...omium.org>
Signed-off-by: Marc Gonzalez <marc.w.gonzalez@...e.fr>
---
 drivers/scsi/ufs/ufs_quirks.h | 29 -----------------------------
 drivers/scsi/ufs/ufshcd.c     |  4 ----
 2 files changed, 33 deletions(-)

diff --git a/drivers/scsi/ufs/ufs_quirks.h b/drivers/scsi/ufs/ufs_quirks.h
index 5d2dfdb41a6f..a9bbd34d6b16 100644
--- a/drivers/scsi/ufs/ufs_quirks.h
+++ b/drivers/scsi/ufs/ufs_quirks.h
@@ -44,21 +44,6 @@ struct ufs_dev_fix {
 	.quirk = (_quirk),		   \
 }
 
-/*
- * If UFS device is having issue in processing LCC (Line Control
- * Command) coming from UFS host controller then enable this quirk.
- * When this quirk is enabled, host controller driver should disable
- * the LCC transmission on UFS host controller (by clearing
- * TX_LCC_ENABLE attribute of host to 0).
- */
-#define UFS_DEVICE_QUIRK_BROKEN_LCC (1 << 0)
-
-/*
- * Some UFS devices don't need VCCQ rail for device operations. Enabling this
- * quirk for such devices will make sure that VCCQ rail is not voted.
- */
-#define UFS_DEVICE_NO_VCCQ (1 << 1)
-
 /*
  * Some vendor's UFS device sends back to back NACs for the DL data frames
  * causing the host controller to raise the DFES error status. Sometimes
@@ -84,13 +69,6 @@ struct ufs_dev_fix {
  */
 #define UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS (1 << 2)
 
-/*
- * Some UFS devices may not work properly after resume if the link was kept
- * in off state during suspend. Enabling this quirk will not allow the
- * link to be kept in off state during suspend.
- */
-#define UFS_DEVICE_QUIRK_NO_LINK_OFF	(1 << 3)
-
 /*
  * Few Toshiba UFS device models advertise RX_MIN_ACTIVATETIME_CAPABILITY as
  * 600us which may not be enough for reliable hibern8 exit hardware sequence
@@ -100,13 +78,6 @@ struct ufs_dev_fix {
  */
 #define UFS_DEVICE_QUIRK_PA_TACTIVATE	(1 << 4)
 
-/*
- * Some UFS memory devices may have really low read/write throughput in
- * FAST AUTO mode, enable this quirk to make sure that FAST AUTO mode is
- * never enabled for such devices.
- */
-#define UFS_DEVICE_NO_FASTAUTO		(1 << 5)
-
 /*
  * It seems some UFS devices may keep drawing more than sleep current
  * (atleast for 500us) from UFS rails (especially from VCCQ rail).
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index a5bfcf04fdba..54ed1f8db1bf 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -219,11 +219,8 @@ static struct ufs_dev_fix ufs_fixups[] = {
 	/* UFS cards deviations table */
 	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
 		UFS_DEVICE_QUIRK_DELAY_BEFORE_LPM),
-	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),
 	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
 		UFS_DEVICE_QUIRK_RECOVERY_FROM_DL_NAC_ERRORS),
-	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
-		UFS_DEVICE_NO_FASTAUTO),
 	UFS_FIX(UFS_VENDOR_SAMSUNG, UFS_ANY_MODEL,
 		UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE),
 	UFS_FIX(UFS_VENDOR_TOSHIBA, UFS_ANY_MODEL,
@@ -232,7 +229,6 @@ static struct ufs_dev_fix ufs_fixups[] = {
 		UFS_DEVICE_QUIRK_PA_TACTIVATE),
 	UFS_FIX(UFS_VENDOR_TOSHIBA, "THGLF2G9D8KBADG",
 		UFS_DEVICE_QUIRK_PA_TACTIVATE),
-	UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL, UFS_DEVICE_NO_VCCQ),
 	UFS_FIX(UFS_VENDOR_SKHYNIX, UFS_ANY_MODEL,
 		UFS_DEVICE_QUIRK_HOST_PA_SAVECONFIGTIME),
 	UFS_FIX(UFS_VENDOR_SKHYNIX, "hB8aL1" /*H28U62301AMR*/,
-- 
2.17.1