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authorStanley Chu <stanley.chu@mediatek.com>2020-05-22 11:32:10 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2020-05-27 04:14:06 +0300
commitc7cee3e746a5b5a79d415112f7b7af90e8259fa1 (patch)
tree70af21a1996af1f2db0d965a7a9ccbfdd014ceb8 /drivers/scsi
parent3a66ae512b09971410abf9f1d546944c07b852ec (diff)
downloadlinux-c7cee3e746a5b5a79d415112f7b7af90e8259fa1.tar.xz
scsi: ufs: Allow WriteBooster on UFS 2.2 devices
According to the UFS specification, WriteBooster is officially supported by UFS 2.2. Since UFS 2.2 specification has been finalized in JEDEC and such devices have also showed up in the market, modify the checking rule for ufshcd_wb_probe() to allow these devices to enable WriteBooster. Link: https://lore.kernel.org/r/20200522083212.4008-3-stanley.chu@mediatek.com Reviewed-by: Avri Altman <avri.altman@wdc.com> Reviewed-by: Asutosh Das <asutoshd@codeaurora.org> Signed-off-by: Stanley Chu <stanley.chu@mediatek.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
-rw-r--r--drivers/scsi/ufs/ufshcd.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index 9e55c524f330..0dbd8a7a6642 100644
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6930,6 +6930,7 @@ static int ufs_get_device_desc(struct ufs_hba *hba)
* UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES enabled
*/
if (dev_info->wspecversion >= 0x310 ||
+ dev_info->wspecversion == 0x220 ||
(hba->dev_quirks & UFS_DEVICE_QUIRK_SUPPORT_EXTENDED_FEATURES))
ufshcd_wb_probe(hba, desc_buf);